WO2022230040A1 - 光治療装置、光治療方法および光治療プログラム - Google Patents
光治療装置、光治療方法および光治療プログラム Download PDFInfo
- Publication number
- WO2022230040A1 WO2022230040A1 PCT/JP2021/016734 JP2021016734W WO2022230040A1 WO 2022230040 A1 WO2022230040 A1 WO 2022230040A1 JP 2021016734 W JP2021016734 W JP 2021016734W WO 2022230040 A1 WO2022230040 A1 WO 2022230040A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- light
- image
- therapeutic
- narrow
- band
- Prior art date
Links
- 238000001126 phototherapy Methods 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims description 25
- 230000001225 therapeutic effect Effects 0.000 claims abstract description 137
- 230000005284 excitation Effects 0.000 claims abstract description 36
- 230000008859 change Effects 0.000 claims description 89
- 238000002073 fluorescence micrograph Methods 0.000 claims description 55
- 229940079593 drug Drugs 0.000 claims description 26
- 239000003814 drug Substances 0.000 claims description 26
- 230000001678 irradiating effect Effects 0.000 claims description 10
- 230000002123 temporal effect Effects 0.000 claims description 8
- 238000002834 transmittance Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 description 91
- 210000001519 tissue Anatomy 0.000 description 49
- 238000010586 diagram Methods 0.000 description 39
- 206010028980 Neoplasm Diseases 0.000 description 34
- 229940125644 antibody drug Drugs 0.000 description 33
- 238000003384 imaging method Methods 0.000 description 29
- 230000003287 optical effect Effects 0.000 description 28
- 210000004204 blood vessel Anatomy 0.000 description 24
- 238000005286 illumination Methods 0.000 description 18
- 201000011510 cancer Diseases 0.000 description 17
- 230000008569 process Effects 0.000 description 15
- 238000006243 chemical reaction Methods 0.000 description 9
- 238000003780 insertion Methods 0.000 description 9
- 230000037431 insertion Effects 0.000 description 9
- 238000005452 bending Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000012937 correction Methods 0.000 description 5
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 5
- 230000015654 memory Effects 0.000 description 5
- 239000000284 extract Substances 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000002344 surface layer Substances 0.000 description 4
- 230000001186 cumulative effect Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 210000004400 mucous membrane Anatomy 0.000 description 3
- 210000002784 stomach Anatomy 0.000 description 3
- 230000000451 tissue damage Effects 0.000 description 3
- 231100000827 tissue damage Toxicity 0.000 description 3
- 230000002792 vascular Effects 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 2
- 230000017531 blood circulation Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000012790 confirmation Methods 0.000 description 2
- 238000005401 electroluminescence Methods 0.000 description 2
- 238000001727 in vivo Methods 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 210000004088 microvessel Anatomy 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 102000004169 proteins and genes Human genes 0.000 description 2
- 108090000623 proteins and genes Proteins 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001574 biopsy Methods 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000001917 fluorescence detection Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 230000005934 immune activation Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000002547 new drug Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N5/0613—Apparatus adapted for a specific treatment
- A61N5/062—Photodynamic therapy, i.e. excitation of an agent
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00002—Operational features of endoscopes
- A61B1/00004—Operational features of endoscopes characterised by electronic signal processing
- A61B1/00006—Operational features of endoscopes characterised by electronic signal processing of control signals
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00002—Operational features of endoscopes
- A61B1/00004—Operational features of endoscopes characterised by electronic signal processing
- A61B1/00009—Operational features of endoscopes characterised by electronic signal processing of image signals during a use of endoscope
- A61B1/000094—Operational features of endoscopes characterised by electronic signal processing of image signals during a use of endoscope extracting biological structures
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00002—Operational features of endoscopes
- A61B1/00043—Operational features of endoscopes provided with output arrangements
- A61B1/00055—Operational features of endoscopes provided with output arrangements for alerting the user
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/04—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances
- A61B1/043—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances for fluorescence imaging
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/06—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with illuminating arrangements
- A61B1/063—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with illuminating arrangements for monochromatic or narrow-band illumination
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/06—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with illuminating arrangements
- A61B1/0638—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with illuminating arrangements providing two or more wavelengths
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N5/0601—Apparatus for use inside the body
- A61N5/0603—Apparatus for use inside the body for treatment of body cavities
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N5/0601—Apparatus for use inside the body
- A61N5/0603—Apparatus for use inside the body for treatment of body cavities
- A61N2005/0609—Stomach and/or esophagus
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N2005/0626—Monitoring, verifying, controlling systems and methods
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N2005/0626—Monitoring, verifying, controlling systems and methods
- A61N2005/0627—Dose monitoring systems and methods
- A61N2005/0628—Dose monitoring systems and methods including a radiation sensor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N2005/0658—Radiation therapy using light characterised by the wavelength of light used
- A61N2005/0659—Radiation therapy using light characterised by the wavelength of light used infrared
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N2005/0658—Radiation therapy using light characterised by the wavelength of light used
- A61N2005/0662—Visible light
Definitions
- the present invention relates to a phototherapy device, a phototherapy method, and a phototherapy program.
- photoimmunotherapy is used to treat cancer by specifically binding antibody drugs to the proteins of cancer cells and activating the antibody drugs by irradiation with near-infrared light, which is therapeutic light, to destroy cancer cells.
- Photoimmunotherapy (PIT) research is in progress (see, for example, Patent Document 1).
- the antibody drug irradiated with near-infrared light absorbs light energy, causes molecular vibration, and generates heat. This heat destroys cancer cells.
- the antibody drug emits fluorescence when excited. The intensity of this fluorescence is used as an index of therapeutic efficacy.
- the therapeutic effect is considered to have the following three effects. 1. 1. direct destructive effect on cancer cells; 3. Indirect injury caused by changes in blood flow; Indirect Damage Caused by Immune Activation It is also known that when cancer expands, capillaries increase and the mucosal surface becomes intricately patterned. Due to the indirect injury caused by the change in blood flow described in 2 above, the capillaries on the surface of the mucous membrane and the micropattern of the mucous membrane change around the therapeutic light irradiation site. Therefore, changes in capillaries on the mucosal surface and changes in mucosal micropatterns are important indicators for confirming therapeutic effects.
- Patent Document 1 evaluates the therapeutic effect based on the amount of decrease in fluorescence, it may not be possible to appropriately evaluate the therapeutic effect.
- fluorescent reagents attenuate their light intensity over time, so it is difficult to determine whether the attenuation of light intensity is due to the treatment or to changes in the drug over time.
- the present invention has been made in view of the above, and aims to provide a phototherapy device, a phototherapy method, and a phototherapy program that can appropriately confirm the therapeutic effect.
- the phototherapy device includes a therapeutic light emitting unit that emits therapeutic light that causes a drug to react, and light in a part of the visible light range.
- a narrowband light emitting portion emitting narrowband light, an excitation light emitting portion emitting excitation light for exciting the drug, and a narrowband light obtained by the narrowband light irradiated to the irradiation position of the therapeutic light
- a narrowband light image acquisition unit that acquires an image
- a fluorescence image acquisition unit that acquires a fluorescence image obtained by the excitation light irradiated to the irradiation position of the therapeutic light
- the narrowband light image and the fluorescence image includes a display image generation unit that generates a superimposed superimposed image.
- the phototherapy apparatus further includes an image change calculator that calculates a temporal change in the narrowband light image before and after irradiation with the therapeutic light.
- the image change calculation unit calculates a temporal change in fluorescence intensity in the fluorescence image before and after irradiation with therapeutic light.
- the display image generation unit superimposes the narrowband light image and the fluorescence image with brightness or transmittance set for each, generating the superimposed image
- the image change calculation unit divides the narrowband light image into a plurality of regions and calculates the amount of change in the image in each of the divided regions.
- the display image generation unit includes a display image in which a superimposed image before irradiation with the therapeutic light and a superimposed image after irradiation with the therapeutic light are arranged. to generate
- the phototherapy apparatus further includes an estimation unit that estimates the output of the therapeutic light based on the change in the image calculated by the image change calculation unit.
- the phototherapy apparatus further includes an estimation unit that estimates the irradiation time of the therapeutic light based on the change in the image calculated by the image change calculation unit.
- the phototherapy method according to the present invention is a phototherapy method for confirming the therapeutic effect by irradiating a therapeutic light that reacts a drug to a treatment site, wherein the irradiation position of the therapeutic light that reacts the drug is irradiated.
- a narrow-band light image acquisition step of acquiring a narrow-band light image obtained by narrow-band light composed of light in a partial wavelength band of the visible light region; and the drug irradiated to the irradiation position of the therapeutic light.
- a display image generating step of generating a superimposed image in which the narrowband light image and the fluorescent image are superimposed.
- the phototherapy program according to the present invention provides a phototherapy device that irradiates a therapeutic light that causes a drug to react to a treatment site and generates information for confirming the therapeutic effect.
- a fluorescence image acquisition step of acquiring a fluorescence image obtained by excitation light that excites the drug, and a display image generation step of generating a superimposed image in which the narrowband light image and the fluorescence image are superimposed are executed.
- FIG. 1 is a diagram showing a schematic configuration of an endoscope system according to Embodiment 1 of the present invention.
- FIG. 2 is a block diagram showing a schematic configuration of the endoscope system according to Embodiment 1 of the present invention.
- FIG. 3 is a diagram for explaining the configuration of the distal end of the endoscope according to the first embodiment of the present invention;
- FIG. 4 is a diagram for explaining an example of the wavelength band of light used as narrowband light.
- FIG. 7 is a diagram illustrating tissue in a normal state.
- FIG. 1 is a diagram showing a schematic configuration of an endoscope system according to Embodiment 1 of the present invention.
- FIG. 2 is a block diagram showing a schematic configuration of the endoscope system according to
- FIG. 8A is a diagram (part 1) explaining a tissue containing cancer cells.
- FIG. 8B is a diagram (part 2) explaining a tissue containing cancer cells.
- FIG. 8C is a diagram (part 3) explaining a tissue containing cancer cells.
- FIG. 9 is a diagram for explaining the state of tissue before and after treatment.
- FIG. 10 is a diagram showing an example of a display screen.
- FIG. 11 is a block diagram showing a schematic configuration of an endoscope system according to Embodiment 2 of the present invention.
- FIG. 12 is a flow chart showing an example of processing of the processing device according to the second embodiment of the present invention.
- FIG. 13A is a diagram (Part 1) in which the structure is extracted for the state of tissue before and after treatment.
- FIG. 13B is a diagram (part 2) in which the structure is extracted for the state of the tissue before and after treatment.
- FIG. 14 is a diagram showing an example of a display screen.
- FIG. 15 is a diagram for explaining treatment effect determination processing according to the third embodiment of the present invention.
- FIG. 16 is a block diagram showing a schematic configuration of an endoscope system according to Embodiment 4 of the present invention.
- 17A is a diagram (part 1) for explaining estimation processing according to the fifth embodiment of the present invention
- FIG. 17B is a diagram (part 2) for explaining estimation processing according to the fifth embodiment of the present invention;
- FIG. 18A is a diagram (part 1) for explaining estimation processing according to the sixth embodiment of the present invention.
- FIG. 18B is a diagram (part 2) for explaining estimation processing according to the sixth embodiment of the present invention.
- FIG. 19 is a block diagram showing a schematic configuration of an endoscope system according to Embodiment 7 of the present invention.
- FIG. 1 is a diagram showing a schematic configuration of an endoscope system according to Embodiment 1 of the present invention.
- FIG. 2 is a block diagram showing a schematic configuration of the endoscope system according to the first embodiment.
- FIG. 3 is a diagram for explaining the configuration of the distal end of the endoscope according to the first embodiment.
- An endoscope system 1 shown in FIGS. 1 and 2 includes an endoscope 2 that captures an in-vivo image of a subject by inserting its distal end into the subject, and illumination light emitted from the distal end of the endoscope 2.
- a light source device 3 that generates a signal
- a processing device 4 that performs predetermined signal processing on an imaging signal captured by the endoscope 2 and controls the overall operation of the endoscope system 1, and a signal from the processing device 4
- a display device 5 for displaying an in-vivo image generated by processing and a treatment instrument device 6 are provided.
- the endoscope 2 includes an insertion section 21 having a flexible and elongated shape, an operation section 22 connected to the proximal end side of the insertion section 21 and receiving input of various operation signals, and an operation section 22 to the insertion section. and a universal cord 23 extending in a direction different from the direction in which 21 extends and containing various cables connected to the light source device 3 and the processing device 4 .
- the insertion section 21 is a flexible bendable body composed of a distal end section 24 containing an imaging device 244 in which pixels for generating signals by receiving and photoelectrically converting light are arranged two-dimensionally, and a plurality of bending pieces. It has a bending portion 25 and an elongated flexible tubular portion 26 connected to the base end side of the bending portion 25 and having flexibility.
- the insertion section 21 is inserted into the body cavity of the subject, and the imaging element 244 captures an image of a subject such as living tissue at a position where external light cannot reach.
- the operation unit 22 includes a bending knob 221 for bending the bending portion 25 in the vertical direction and the horizontal direction, and a treatment for inserting treatment tools such as a therapeutic light irradiation device, a biopsy forceps, an electric scalpel, and an examination probe into the body cavity of the subject. It has an instrument inserting portion 222 and a plurality of switches 223 as an operation input portion for inputting operation instruction signals for peripheral devices such as air supply means, water supply means, and screen display control in addition to the processing device 4 .
- a treatment instrument inserted from the treatment instrument insertion portion 222 is exposed from the opening via a treatment instrument channel (not shown) of the distal end portion 24 (see FIG. 3).
- the universal cord 23 incorporates at least a light guide 241 and a collective cable 245 that collects one or more signal lines.
- the universal cord 23 is branched at the end opposite to the side connected to the operating portion 22 .
- a connector 231 detachable from the light source device 3 and a connector 232 detachable from the processing device 4 are provided at the branch ends of the universal cord 23 .
- a part of the light guide 241 extends from the end of the connector 231 .
- the universal cord 23 propagates the illumination light emitted from the light source device 3 to the distal end portion 24 via the connector 231 (light guide 241 ), the operating portion 22 and the flexible tube portion 26 .
- the universal cord 23 transmits an image signal captured by the imaging device 244 provided at the distal end portion 24 to the processing device 4 via the connector 232 .
- the assembly cable 245 includes signal lines for transmitting imaging signals, signal lines for transmitting drive signals for driving the imaging element 244, and information including unique information about the endoscope 2 (imaging element 244). including signal lines for sending and receiving
- an electric signal is transmitted using a signal line. It may transmit a signal between them.
- the distal end portion 24 includes a light guide 241 made of glass fiber or the like and forming a light guide path for light emitted by the light source device 3, an illumination lens 242 provided at the distal end of the light guide 241, and an optical system for condensing light. It has a system 243 and an imaging element 244 which is provided at an image forming position of the optical system 243 and receives light condensed by the optical system 243, photoelectrically converts the light into an electric signal, and performs predetermined signal processing.
- the optical system 243 is configured using one or more lenses.
- the optical system 243 forms an observation image on the light receiving surface of the imaging device 244 .
- the optical system 243 may have an optical zoom function that changes the angle of view and a focus function that changes the focus.
- the imaging element 244 photoelectrically converts the light from the optical system 243 to generate an electric signal (image signal).
- the imaging element 244 is formed by arranging a plurality of pixels in a matrix, each having a photodiode that accumulates electric charge according to the amount of light and a capacitor that converts the electric charge transferred from the photodiode into a voltage level.
- the imaging element 244 photoelectrically converts light incident on each pixel through the optical system 243 to generate an electric signal, and sequentially reads out the electric signals generated by the pixels arbitrarily set as readout targets among the plurality of pixels. , are output as image signals.
- the imaging element 244 is implemented using, for example, a CCD (Charge Coupled Device) image sensor or a CMOS (Complementary Metal Oxide Semiconductor) image sensor.
- the endoscope 2 has a memory (not shown) that stores an execution program and a control program for the imaging element 244 to perform various operations, and data including identification information of the endoscope 2 .
- the identification information includes unique information (ID) of the endoscope 2, model year, spec information, transmission method, and the like.
- the memory may also temporarily store image data and the like generated by the imaging device 244 .
- the configuration of the light source device 3 will be described.
- the light source device 3 includes a light source section 31 , an illumination control section 32 and a light source driver 33 . Under the control of the illumination control unit 32, the light source unit 31 sequentially switches and emits illumination light to a subject (subject).
- the light source unit 31 is configured using a light source, one or more lenses, etc., and emits light (illumination light) by driving the light source.
- the light generated by the light source section 31 is emitted from the tip of the tip section 24 toward the subject via the light guide 241 .
- the light source section 31 has a white light source 311 , a narrow band light source 312 and an excitation light source 313 .
- Each light source unit, light guide 241 and illumination lens 242 constitute an emission unit.
- the narrow band light source 312, the light guide 241 and the illumination lens 242 constitute a narrow band light emitting section.
- the white light source 311 emits light (white light) having a wavelength band in the visible light range.
- the white light source 311 is implemented using any light source such as an LED light source, a laser light source, a xenon lamp, or a halogen lamp.
- the narrow-band light source 312 emits light (narrow-band light) having a partial wavelength or a wavelength band in the visible light range.
- FIG. 4 is a diagram for explaining an example of the wavelength band of light used as narrowband light.
- the narrow-band light is, for example, light L B in a wavelength band of 390 nm or more and 445 nm or less, or light L G in a wavelength band of 530 nm or more and 550 nm or less, or a combination thereof.
- Narrowband light includes, for example, light composed of light LB and light LG used for NBI (Narrow Band Imaging) observation. In this embodiment, an example of using light composed of light L B and light L G as narrow-band light will be described.
- the narrow band light source 312 is implemented using an LED light source, a laser light source, or the like.
- near-infrared light with a center wavelength of 690 nm (for example, light L P in the wavelength band of 660 nm or more and 710 nm or less shown in FIG. 4) is used.
- the blood vessels on the mucosal surface layer can be visualized with high contrast.
- the surface layer of the mucous membrane can be relatively Deep blood vessels can be visualized with high contrast.
- the excitation light source 313 emits excitation light for exciting an excitation target (for example, an antibody drug in the case of PIT).
- the excitation light source 313 is implemented using a light source such as an LED light source or a laser light source.
- a light source such as an LED light source or a laser light source.
- near-infrared light L P is used to excite the PIT antibody drug.
- the lighting control unit 32 controls the amount of power supplied to the light source unit 31 based on the control signal (light control signal) from the processing device 4, and also controls the light source to emit light and the driving timing of the light source.
- the light source driver 33 supplies current to the light source to emit light, thereby causing the light source unit 31 to emit light.
- the processing device 4 includes an image processing section 41 , a synchronization signal generation section 42 , an input section 43 , a control section 44 and a storage section 45 .
- the image processing unit 41 receives image data of illumination light of each color imaged by the imaging device 244 from the endoscope 2 .
- the image processing unit 41 performs A/D conversion to generate a digital imaging signal.
- image data is received as an optical signal from the endoscope 2, the image processing unit 41 performs photoelectric conversion to generate digital image data.
- the image processing unit 41 performs predetermined image processing on the image data received from the endoscope 2 to generate an image and outputs the image to the display device 5, or sets an enhancement region determined based on the image. , and to calculate changes in fluorescence intensity over time.
- the image processor 41 has a white light image generator 411 , a narrowband light image generator 412 , a fluorescence image generator 413 , and a display image generator 414 .
- the white light image generation unit 411 generates a white light image based on an image formed by white light.
- the narrowband light image generator 412 generates a narrowband light image based on the image formed by the narrowband light.
- the optical system 243, the imaging element 244, and the image generation section constitute an image acquisition section.
- the optical system 243, the imaging device 244, and the narrow-band light image generation unit 412 constitute a narrow-band light image acquisition unit.
- the fluorescence image generation unit 413 generates a fluorescence image based on an image formed by fluorescence.
- a display image generation unit 414 generates an image to be displayed on the display device 5 .
- the image includes an image based on white light or narrowband light, and an image obtained by superimposing a narrowband light image and a fluorescence image.
- the white light image generation unit 411, the narrowband light image generation unit 412, the fluorescence image generation unit 413, and the display image generation unit 414 generate images by performing predetermined image processing.
- the predetermined image processing includes synchronization processing, gradation correction processing, color correction processing, and the like.
- Synchronization processing is processing for synchronizing image data of each color component of RGB.
- Gradation correction processing is processing for correcting the gradation of image data.
- Color correction processing is processing for performing color tone correction on image data.
- the white light image generation unit 411, the narrowband light image generation unit 412, the fluorescence image generation unit 413, and the display image generation unit 414 may perform gain adjustment according to the brightness of the image.
- the image processing unit 41 is configured using a general-purpose processor such as a CPU (Central Processing Unit) or a dedicated processor such as various arithmetic circuits that execute specific functions such as an ASIC (Application Specific Integrated Circuit). Note that the image processing unit 41 may be configured to have a frame memory that holds the R image data, the G image data and the B image data.
- a general-purpose processor such as a CPU (Central Processing Unit) or a dedicated processor such as various arithmetic circuits that execute specific functions such as an ASIC (Application Specific Integrated Circuit).
- the image processing unit 41 may be configured to have a frame memory that holds the R image data, the G image data and the B image data.
- the synchronization signal generation unit 42 generates a clock signal (synchronization signal) that serves as a reference for the operation of the processing device 4, and transmits the generated synchronization signal to the light source device 3, the image processing unit 41, the control unit 44, and the endoscope 2.
- the synchronizing signal generated by the synchronizing signal generator 42 includes a horizontal synchronizing signal and a vertical synchronizing signal. Therefore, the light source device 3, the image processing section 41, the control section 44, and the endoscope 2 operate in synchronization with each other by the generated synchronization signal.
- the input unit 43 is implemented using a keyboard, a mouse, a switch, and a touch panel, and receives inputs of various signals such as operation instruction signals for instructing the operation of the endoscope system 1 .
- the input unit 43 may include a switch provided in the operation unit 22 or a portable terminal such as an external tablet computer.
- the control unit 44 performs drive control of each component including the imaging element 244 and the light source device 3, input/output control of information to each component, and the like.
- the control unit 44 refers to control information data (for example, readout timing) for imaging control stored in the storage unit 45, and performs imaging as a drive signal via a predetermined signal line included in the collective cable 245.
- a normal observation mode for observing an image obtained by transmitting to the element 244 or by illuminating with white light
- a narrow-band light observation mode for observing an image obtained by illuminating with narrow-band light
- calculating the fluorescence intensity of the excitation target Switching to and from the fluorescence observation mode.
- the control unit 44 is configured using a general-purpose processor such as a CPU or a dedicated processor such as various arithmetic circuits that execute specific functions such as an ASIC.
- the storage unit 45 stores data including various programs for operating the endoscope system 1 and various parameters necessary for operating the endoscope system 1 .
- the storage unit 45 also stores identification information of the processing device 4 .
- the identification information includes unique information (ID) of the processing device 4, model year, specification information, and the like.
- the storage unit 45 also stores various programs including an image acquisition processing program for executing the image acquisition processing method of the processing device 4 .
- Various programs can be recorded on computer-readable recording media such as hard disks, flash memories, CD-ROMs, DVD-ROMs, flexible disks, etc., and can be widely distributed.
- the various programs described above can also be obtained by downloading via a communication network.
- the communication network here is realized by, for example, an existing public line network, LAN (Local Area Network), WAN (Wide Area Network), etc., and it does not matter whether it is wired or wireless.
- the storage unit 45 having the above configuration is implemented using a ROM (Read Only Memory) in which various programs etc. are pre-installed, and a RAM, hard disk, etc. for storing calculation parameters, data, etc. for each process.
- ROM Read Only Memory
- the display device 5 displays a display image corresponding to the image signal received from the processing device 4 (image processing unit 41) via the video cable.
- the display device 5 is configured using a monitor such as liquid crystal or organic EL (Electro Luminescence).
- the treatment instrument device 6 has a treatment instrument operation section 61 and a flexible treatment instrument 62 extending from the treatment instrument operation section 61 .
- the treatment instrument 62 used for PIT is a therapeutic light emitting section that emits light for treatment (hereinafter referred to as therapeutic light).
- the treatment instrument operation section 61 controls emission of therapeutic light from the treatment instrument 62 .
- the treatment instrument operation section 61 has an operation input section 611 .
- the operation input unit 611 is composed of, for example, switches.
- the treatment instrument operating section 61 causes the treatment instrument 62 to emit therapeutic light in response to an input to the operation input section 611 (for example, pressing a switch).
- the light source that emits the therapeutic light may be provided in the treatment instrument 62 or may be provided in the treatment instrument operation section 61 .
- a light source is implemented using a semiconductor laser, an LED, or the like.
- therapeutic light is light in a wavelength band of 680 nm or more, for example, light with a central wavelength of 690 nm (for example, light L P shown in FIG. 4).
- the illumination optical system provided in the treatment instrument 62 may be configured to change the irradiation range of the treatment light.
- the treatment instrument operation unit 61 under the control of the treatment instrument operation unit 61, it is composed of an optical system capable of changing the focal length, a DMD (Digital Micromirror Device), etc., and changes the spot diameter of the light irradiated to the subject and the shape of the irradiation range. can do.
- a DMD Digital Micromirror Device
- FIG. 5 is a diagram showing an example of the flow of treatment using the endoscope according to the first embodiment of the present invention
- FIG. 5 is a diagram showing an example of implementation of PIT, in which treatment is performed by inserting the insertion portion 21 into the stomach ST.
- the operator inserts the insertion portion 21 into the stomach ST (see (a) in FIG. 5).
- the operator causes the light source device 3 to irradiate white light, and searches for the treatment position while observing the white light image inside the stomach ST displayed by the display device 5 .
- tumors B 1 and B 2 are to be treated as targets of treatment.
- the antibody drug is administered to the tumors B 1 and B 2 that are the sites to be treated. Administration of the antibody drug may be performed using the endoscope 2, may be performed using other equipment, or may be performed by having the patient swallow the drug.
- the operator observes the white light image and determines the regions containing the tumors B 1 and B 2 as irradiation regions. Further, if necessary, the irradiation region is irradiated with narrow-band light or excitation light to acquire a narrow-band light image or a fluorescence image.
- the operator directs the distal end portion 24 toward the tumor B1, protrudes the treatment tool 62 from the distal end of the endoscope 2 , and irradiates the tumor B1 with therapeutic light (see (b) of FIG. 5). Irradiation of the therapeutic light causes the antibody drug bound to the tumor B1 to react, and the tumor B1 is treated.
- the operator directs the distal end portion 24 toward the tumor B2, protrudes the treatment tool 62 from the distal end of the endoscope 2 , and irradiates the tumor B2 with therapeutic light (see (c) of FIG . 5). Irradiation of the therapeutic light causes the antibody drug bound to the tumor B2 to react, and the tumor B2 is treated.
- the operator directs the distal end portion 24 toward the tumor B 1 and irradiates the tumor B 1 with narrowband light or excitation light from the distal end of the endoscope 2 (see (d) in FIG. 5).
- the operator confirms the therapeutic effect on the tumor B1 by acquiring a narrow band light image and a fluorescence image after treatment. Confirmation of the therapeutic effect is determined by the operator, for example, by observing images to be described later.
- the operator directs the distal end portion 24 toward the tumor B 2 and irradiates the tumor B 2 with narrow band light from the distal end of the endoscope 2 (see FIG. 5(e)).
- the operator confirms the therapeutic effect on Tumor B2 by acquiring post - treatment narrow-band light images.
- the operator repeats additional irradiation of therapeutic light and confirmation of therapeutic effects as necessary.
- FIG. 6 is a flowchart illustrating an example of processing of the processing apparatus according to the first embodiment
- step S101 drug reaction step
- a treatment that destroys cancer cells by activating the antibody drug by irradiation with near-infrared light, which is therapeutic light is performed.
- step S102 narrow-band light image acquisition step.
- the control unit 44 causes the light source device 3 to emit narrowband light and causes the endoscope 2 to capture an image of the narrowband light.
- excitation light is emitted from the light source device 3 to detect the fluorescence of the antibody drug (step S103: fluorescence detection step).
- the endoscope 2 irradiates the subject with the excitation light, and the antibody drug before treatment is excited to emit fluorescence.
- the processing device 4 acquires an imaging signal (fluorescence image) generated by the second imaging element 244b.
- an imaging signal fluorescence image generated by the second imaging element 244b.
- FIG. 7 is a diagram illustrating tissue in a normal state.
- the microstructure O S is uniformly structureless throughout and the microvessels (illustrated in dashed lines as microvessels M V in FIG. 7) are invisible.
- FIGS. 8A to 8C are diagrams illustrating tissues containing cancer cells.
- the tissue containing cancer cells differs from the normal state shown in FIG. 7 in the surface pattern of the fine structure OS and the state of blood vessels.
- a blood vessel B V surrounds each microstructure (see FIG. 8A)
- a blood vessel B V surrounds each microstructure. It may have a mesh-like blood vessel pattern (see FIG. 8B), or the microstructure pattern may be unclear and the thickness of the blood vessel B V may be uneven (see FIG. 8C).
- the antibody drug when the antibody drug is bound to the cancer cell protein, the antibody drug is excited when exposed to excitation light and emits fluorescence (shown hatched in FIG. 8A, etc.). Fluorescence is detected when treatment is incomplete and antibody agent remains bound. On the other hand, when treatment is complete and no antibody drug remains, no fluorescence is detected.
- FIG. 9 is a diagram for explaining the state of tissue before and after treatment.
- FIG. 9(a) shows a narrowband light image acquired by NBI observation before treatment.
- Figures 9(b) and (c) show narrowband light images acquired stepwise by post-treatment NBI observation.
- the operator irradiates the tissue with therapeutic light from the state shown in (a) of FIG. 9 and confirms the transition to the state shown in (c) of FIG. to decide.
- fluorescence is detected in a part of the body while the whole body becomes uniformly unstructured, and it is determined that additional therapeutic light is to be irradiated.
- the display image generation unit 414 generates an image to be displayed on the display device 5 (step S104: display image generation step).
- the display image generation unit 414 generates a display image including a superimposed image (for example, the image shown in (b) or (c) of FIG. 9) in which the narrowband light image and the fluorescence image acquired in steps S102 and S103 are superimposed. do.
- the control unit 44 causes the display device 5 to display the display image generated in step S105 (step S105: display step).
- step S105 display step
- the operator can confirm the therapeutic effect.
- the operator refers to the image to confirm the therapeutic effect, determines whether to additionally irradiate the therapeutic light, and determines the portion to be irradiated with the therapeutic light.
- the operator operates the input unit 43 to input the determination result.
- FIG. 10 is a diagram showing an example of a display screen.
- the display device 5 displays, for example, a display image W1 having an image display portion W11 that displays a superimposed image in which a post-treatment narrowband light image and a fluorescence image are superimposed.
- the image display unit W 11 displays an image in which the post-treatment narrow-band light image acquired in step S102 and the post-treatment fluorescence image acquired in step S103 are superimposed.
- fluorescence hatchched portion in FIG. 10
- the operator considers additional irradiation based on the image.
- step S106 determines whether or not to additionally irradiate the therapeutic light. If the control unit 44 determines that additional irradiation of therapeutic light is unnecessary based on the input determination result (step S106: No), the process ends. On the other hand, when the control unit 44 determines that additional irradiation of therapeutic light is to be performed (step S106: Yes), the process proceeds to step S107.
- additional irradiation for example, in the illumination optical system, the shape of the irradiation range of light is controlled to match the boundary region, or the operator adjusts the spot diameter to irradiate therapeutic light.
- the control unit 44 determines whether or not the amount of irradiated light in the region where additional therapeutic light irradiation is performed is within the allowable range (step S107).
- the allowable range is a preset amount of light, and at least an upper limit value is set. This upper limit is a value set to suppress tissue damage due to excessive irradiation.
- the control unit 44 determines whether or not the amount of light (accumulated light amount value) that has been applied to the target region specified by the operator or the like exceeds the upper limit value.
- the amount of light that has been irradiated is calculated, for example, based on the therapeutic light output and the irradiation time input by the operator.
- step S107: Yes When the control unit 44 determines that the amount of light that has been irradiated is below the allowable range (upper limit) (step S107: Yes), it returns to step S101 and repeats the above-described processing. If the control unit 44 determines that the amount of light that has been irradiated exceeds the allowable range (upper limit) (step S107: No), the process proceeds to step S108.
- step S108 the control unit 44 outputs an alert to the effect that the irradiation light amount exceeds the allowable range.
- This alert may be displayed as character information on the display device 5, may be configured to emit sound or light, or may be combined. After displaying on the display device 5, the control unit 44 terminates the process.
- the display device 5 displays an image in which a narrow-band light image depicting the tissue structure and a fluorescence image depicting the presence or absence of the antibody drug are superimposed, thereby allowing the operator to , to determine whether additional irradiation of therapeutic light is necessary. According to Embodiment 1, it is possible to appropriately confirm the therapeutic effect based on both viewpoints of post-treatment tissue and blood vessel changes and the residual state of the antibody drug.
- the cumulative light amount of the therapeutic light to the area is compared with the allowable range, and if the cumulative light amount exceeds the allowable range, the cumulative light amount outputs an alert that the value exceeds the allowable range. According to the first embodiment, it is possible to suppress tissue damage due to excessive irradiation of therapeutic light.
- the imaging device 244 may be configured using a multi-band image sensor to individually acquire light in a plurality of wavelength bands different from each other. For example, scattered light and returned light in a wavelength band of 380 nm to 440 nm and scattered light and returned light in a wavelength band of 530 nm to 550 nm are separately acquired by a multiband image sensor, and each narrow By generating a band light image, it is possible to individually generate blood vessel images with different depths from the mucosal surface layer, and use images of blood vessels and tissues at each depth to calculate image changes with higher accuracy. can be done. Furthermore, even when narrow-band light and excitation light are applied at the same time, a narrow-band light image and a fluorescence image can be acquired separately.
- FIG. 11 is a block diagram showing a schematic configuration of an endoscope system according to Embodiment 2 of the present invention.
- An endoscope system 1A according to the second embodiment includes a processing device 4A instead of the processing device 4 of the endoscope system 1 according to the first embodiment. Since the configuration other than the processing device 4A is the same as that of the endoscope system 1, the description is omitted.
- the processing device 4A includes an image processing unit 41A, a synchronization signal generation unit 42, an input unit 43, a control unit 44, and a storage unit 45.
- the image processing unit 41A has a white light image generation unit 411, a narrowband light image generation unit 412, a fluorescence image generation unit 413, a display image generation unit 414, and an image change calculation unit 415.
- the image change calculation unit 415 calculates the temporal change amount of the image. Specifically, the image change calculator 415 calculates temporal changes in the narrowband light images generated by the narrowband light image generator 412 and captured at different times, and/or A temporal change in the fluorescence images generated by the fluorescence image generation unit 413 and captured at different times is calculated.
- FIG. 12 is a flowchart illustrating an example of processing of the processing device according to the second embodiment.
- the treatment position is irradiated with narrow-band light from the distal end portion 24 to obtain a narrow-band light image (first narrow-band light image) before treatment (step S201: narrow-band light image obtaining step).
- the control unit 44 causes the light source device 3 to emit narrow-band light and causes the endoscope 2 to capture an image of the narrow-band light.
- the narrowband optical image generator 412 After imaging, the narrowband optical image generator 412 generates a narrowband optical image.
- the treatment position is irradiated with excitation light from the distal end portion 24 to acquire a fluorescence image (first fluorescence image) before treatment (step S202: fluorescence image acquisition step).
- the control unit 44 causes the light source device 3 to emit excitation light and causes the endoscope 2 to capture an image of fluorescence emitted by the antibody drug.
- the fluorescence image generation unit 413 generates a fluorescence image. Note that the processing order of steps S201 and S202 may be reversed.
- step S203 drug reaction step
- step S204 narrow-band light image acquisition step.
- the control unit 44 causes the light source device 3 to emit narrowband light and causes the endoscope 2 to capture an image of narrowband light in the same manner as in step S101.
- step S205 fluorescence image acquisition step.
- the control unit 44 causes the light source device 3 to emit narrowband light and causes the endoscope 2 to capture an image of narrowband light in the same manner as in step S101. Note that the order of processing in steps S204 and S205 may be reversed.
- the image change calculation unit 415 calculates temporal changes in the images before and after the treatment (step S206: image change calculation step).
- the image change calculator 415 compares the narrowband light images before and after the treatment, and calculates values indicating the clarity and uniformity of the surface tissue pattern, the uniformity of the blood vessel thickness, the visibility, etc. as image changes. Note that the image change calculator 415 may calculate the difference in fluorescence intensity before and after treatment as the image change.
- the image change calculation unit 415 individually calculates changes in the state of either the blood vessel structure or the fine structure OS in the obtained narrow-band optical image.
- the target of change calculation can be set and can be selected from vascular structure only, fine structure only, and vascular structure and fine structure.
- the image change calculation unit 415 extracts feature points of an image, compares changes in positions, sizes, and distributions of the feature points to calculate changes.
- FIG. 13A and 13B are structural extractions from narrowband optical images of tissue conditions before and after treatment.
- FIG. 13A shows an image when the vascular structure is extracted.
- FIG. 13B shows an image when the fine structure is extracted.
- the image change calculator 415 extracts the blood vessel B V from the narrowband light images before and after the treatment, calculates the contrast value of the blood vessel, and then calculates the contrast ratio between the blood vessel B V and its surroundings. After that, the image change calculator 415 calculates the difference in contrast ratio between the narrow band light images before and after the treatment as an image change (see FIG. 13A).
- the image change calculation unit 415 extracts the fine structure OS of the mucosal surface layer from the narrowband optical images before and after the treatment, and calculates the clarity of the fine structure OS. After that, the image change calculator 415 calculates the difference in clarity between the narrow band light images before and after the treatment as an image change (see FIG. 10B). At this time, in the narrow-band light image, the microstructure after treatment is depicted more clearly than the microstructure before treatment. Note that the image change calculation unit 415 may, for example, extract the fine structure OS and calculate the matching degree of the fine structure OS between images as the change.
- the image change calculation unit 415 calculates the image change of the narrowband light image and the image change of the fluorescence image (change in fluorescence intensity)
- the image change calculation unit 415 calculates one value indicating the image change using each image change.
- each image change may be calculated as an independent value.
- the display image generation unit 414 generates an image to be displayed on the display device 5 (step S207: display image generation step).
- the display image generation unit 414 generates an image in which the above-described narrow-band light image and fluorescence image are superimposed, and an image that visually expresses the calculated image change.
- the control unit 44 causes the display device 5 to display the image generated in step S207 (step S208: display step).
- step S208 display step
- the operator can confirm the therapeutic effect.
- the operator refers to the image to confirm the therapeutic effect, determines whether to additionally irradiate the therapeutic light, and determines the portion to be irradiated with the therapeutic light.
- the operator operates the input unit 43 to input the judgment result.
- FIG. 14 is a diagram showing an example of a display screen displaying images showing tissue states before and after treatment.
- the display device 5 includes, for example, a first image display portion W21 that displays an image before treatment, a second image display portion W22 that displays an image after treatment, and changes in the image before and after treatment (for example, the above-mentioned A display image W2 having an information display portion W23 displaying a contrast value) is displayed.
- the images displayed on the first image display portion W21 and the second image display portion W22 are images in which the narrow-band light image and the fluorescence image are superimposed.
- the size of the first image display portion W21 and the second image display portion W22, and the transmittance of each image when the narrow-band light image and the fluorescence image are superimposed can be appropriately set.
- step S209 determines whether or not to additionally irradiate the treatment light. If the control unit 44 determines that additional irradiation of therapeutic light is unnecessary based on the input determination result (step S209: No), the process ends. On the other hand, when the control unit 44 determines that additional irradiation of therapeutic light is to be performed (step S209: Yes), the process proceeds to step S210.
- additional irradiation for example, in the illumination optical system, the shape of the irradiation range of light is controlled to match the boundary region, or the operator adjusts the spot diameter to irradiate therapeutic light.
- the control unit 44 determines whether or not the amount of irradiated light in the region where additional therapeutic light irradiation is performed is within the allowable range (step S210).
- the allowable range is a preset amount of light, and at least an upper limit value is set. This upper limit is a value set to suppress tissue damage due to excessive irradiation.
- the control unit 44 determines whether or not the amount of light (accumulated light amount value) that has been applied to the target region specified by the operator or the like exceeds the upper limit value.
- control unit 44 determines that the amount of light that has been irradiated is below the allowable range (upper limit) (step S210: Yes), it returns to step S203 and repeats the above-described processing.
- the control unit 44 determines that the amount of light that has been irradiated is below the allowable range (upper limit) (step S210: Yes)
- the latest narrow-band light image is used as the first narrow-band light image before treatment
- the narrow-band light image acquired after the drug reaction step is used.
- the band light image be the second narrow band light image.
- step S210 determines that the amount of irradiated light exceeds the allowable range (upper limit) (step S210: No).
- the process proceeds to step S211.
- step S211 the control unit 44 outputs an alert to the effect that the irradiation light amount exceeds the allowable range.
- This alert may be displayed as character information on the display device 5, may be configured to emit sound or light, or may be combined. After displaying on the display device 5, the control unit 44 terminates the process.
- an image obtained by superimposing a narrow-band light image depicting the tissue structure and a fluorescent image depicting the presence or absence of the antibody drug is displayed on the display device 5.
- the display allows the operator to determine whether additional therapeutic light irradiation is necessary.
- Embodiment 2 it is possible to appropriately confirm the therapeutic effect based on both viewpoints of changes in tissue and blood vessels after treatment and the remaining state of the antibody drug.
- the change in the image before and after the treatment is calculated using the narrowband light image and the fluorescence image, and the change is displayed, thereby allowing the operator to determine whether or not additional irradiation of the treatment light is necessary.
- changes in tissues and blood vessels before and after treatment are calculated at the tissue level based on narrow-band optical images that depict tissues and blood vessels. is calculated as the amount of change, it is possible to appropriately determine the additional irradiation for the treatment area.
- Embodiment 3 Next, Embodiment 3 will be described with reference to FIG. Since the endoscope system according to the third embodiment is the same as the endoscope system 1A according to the second embodiment, description thereof is omitted. Processing different from that of the second embodiment will be described below.
- the image change calculation unit 415 divides the image into a plurality of regions and calculates the image change in each region.
- FIG. 15 is a diagram for explaining treatment effect determination processing according to the third embodiment of the present invention.
- the image change calculator 415 divides the pre-treatment and post-treatment images into four, and calculates the image change of each region (regions R A to R D ).
- the tissues in regions RA and RB are in a normal state after treatment, and the tissues in regions RC and RD contain cancer cells and antibody drugs even after treatment. The operator observes the narrow-band image and image changes, and determines whether or not additional irradiation is necessary for each region.
- an image obtained by superimposing a narrow-band optical image depicting the tissue structure and a fluorescence image depicting the presence or absence of the antibody drug is displayed on the display device 5.
- the display allows the operator to determine whether additional therapeutic light irradiation is necessary. According to the third embodiment, it is possible to appropriately confirm the therapeutic effect based on both viewpoints of changes in tissue and blood vessels after treatment and the residual state of the antibody drug.
- the narrow-band light is divided into a plurality of regions, and the image change in each region is calculated.
- FIG. 16 is a block diagram showing a schematic configuration of an endoscope system according to Embodiment 3 of the present invention.
- An endoscope system 1B according to the third embodiment includes a processing device 4B instead of the processing device 4A of the endoscope system 1A according to the second embodiment. Since the configuration other than the processing device 4B is the same as that of the endoscope system 1, the description is omitted.
- the configuration of the processing device 4B will be explained.
- the processing device 4B includes an image processing section 41B, a synchronization signal generation section 42, an input section 43, a control section 44, and a storage section 45.
- the image processing unit 41B has a white light image generation unit 411, a narrowband light image generation unit 412, a fluorescence image generation unit 413, a display image generation unit 414, an image change calculation unit 415, and an estimation unit 416. .
- the estimation unit 416 estimates the therapeutic effect based on the image change calculated by the image change calculation unit 415 .
- the estimating unit 416 calculates the difference between the contrast values calculated as the image change of the narrowband light images before and after the treatment, compares the difference with a preset threshold value, and estimates the therapeutic effect. .
- the estimation unit 416 estimates that additional irradiation is necessary if the difference is smaller than the threshold.
- the estimation unit 416 estimates that the treatment is completed if the difference is equal to or greater than the threshold.
- This estimation process may be the process of step S209 in FIG. 12, or may be performed as part of the change calculation process in step S206, and the estimation result may be displayed in the display process of step S208.
- the display image generation unit 414 When the estimation result is displayed in the display process in step S208, the display image generation unit 414 generates an image in which the information displayed in the information display unit W23 is changed to the estimation result in the display image W2 shown in FIG . Note that an image that displays both the estimation result and the information on the image change may be used.
- an image obtained by superimposing a narrow-band light image depicting the tissue structure and a fluorescent image depicting the presence or absence of the antibody drug is displayed on the display device 5.
- the display allows the operator to determine whether additional therapeutic light irradiation is necessary. According to the fourth embodiment, it is possible to appropriately confirm the therapeutic effect based on both the post-treatment changes in tissue and blood vessels and the residual state of the antibody drug.
- the therapeutic effect is estimated from changes in the narrow-band light image, and the estimation result is used by the operator to determine the therapeutic effect from observation of the narrow-band image and image changes. It can be a suitable judgment material when doing.
- Embodiment 5 will be described with reference to FIGS. 17A and 17B. Since the endoscope system according to the fifth embodiment is the same as the endoscope system 1B according to the fourth embodiment, description thereof will be omitted. Processing different from that of the fourth embodiment will be described below.
- the image change calculation unit 415 calculates changes in the narrowband light images before and after the treatment, or image changes between the narrowband light image before the treatment and the narrowband light image of the normal tissue acquired in advance. calculate.
- the estimation unit 416 estimates the therapeutic light output (irradiation intensity) based on the image change calculated by the image change calculation unit 415 .
- 17A and 17B are diagrams for explaining estimation processing according to the fourth embodiment of the present invention.
- the estimator 416 estimates the intensity of the therapeutic light based on the magnitude of the image change. For example, in the narrow band image shown in (a) of FIG. 17A , if the image change from normal tissue is large, the estimating unit 416 sets the therapeutic light output to the maximum value P MAX ((b) of FIG. 17A reference). In addition, in the narrowband image shown in (a) of FIG.
- the estimating unit 416 sets the therapeutic light output to a value smaller than the maximum value P MAX ( See (b) in FIG. 17B). At this time, a threshold associated with the output value is set in advance for the image change.
- This estimation processing is performed before the drug reaction step in step S203 of FIG. 12 or after it is determined in step S209 that additional irradiation is to be performed (step S209: Yes).
- the display image generation unit 414 When displaying the estimation result, the display image generation unit 414 generates an image for displaying information indicating the output of the therapeutic light as the estimation result in the information display unit W23 in the display image W2 shown in FIG . Note that an image that displays both the estimation result and the information on the image change may be used.
- the operator observes the narrow-band image and image changes refers to the estimated therapeutic light output value, and determines whether or not additional irradiation is necessary for each region and determines the therapeutic light output (energy).
- an image obtained by superimposing a narrow-band light image depicting the tissue structure and a fluorescence image depicting the presence or absence of the antibody drug is displayed on the display device 5.
- the display allows the operator to determine whether additional therapeutic light irradiation is necessary. According to the fifth embodiment, it is possible to appropriately confirm the therapeutic effect based on both the post-treatment changes in tissue and blood vessels and the residual state of the antibody drug.
- the output of therapeutic light is estimated based on the narrow-band light image, and the estimation result is a suitable material for the operator to make a judgment when irradiating the therapeutic light. can be.
- Embodiment 6 will be described with reference to FIGS. 18A and 18B. Since the endoscope system according to the sixth embodiment is the same as the endoscope system 1B according to the fourth embodiment, description thereof will be omitted. Processing different from that of the fourth embodiment will be described below.
- the image change calculation unit 415 calculates changes in the narrowband light images before and after treatment, or image changes between the narrowband light image before treatment and a narrowband light image of normal tissue acquired in advance. calculate.
- the estimating unit 416 estimates the necessary irradiation intensity of therapeutic light based on the image change calculated by the image change calculating unit 415 .
- 18A and 18B are diagrams for explaining estimation processing according to the fifth embodiment of the present invention.
- the estimation unit 416 estimates the therapeutic light irradiation time based on the magnitude of the image change. At this time, it is assumed that the therapeutic light has a preset output. For example, in the narrow-band image shown in (a) of FIG. 18A , if the image change from normal tissue is large, the estimation unit 416 sets the irradiation time, for example, 70 minutes, according to the magnitude of the image change. In addition, in the narrow band image shown in (a) of FIG.
- the estimation unit 416 sets, for example, 15 minutes. At this time, a threshold associated with the irradiation time is set in advance with respect to the image change. This estimation processing is performed before the drug reaction step in step S203 of FIG. 12 or after it is determined in step S209 that additional irradiation is to be performed (step S209: Yes).
- the display image generation unit 414 causes the information display unit W23 in the display image W2 shown in FIG . 14 to display information indicating the irradiation time of the treatment light as the estimation result (for example, (b) and FIG. 18B (b)).
- the display image generation unit 414 causes the information display unit W23 in the display image W2 shown in FIG . 14 to display information indicating the irradiation time of the treatment light as the estimation result (for example, (b) and FIG. 18B (b)).
- an image that displays both the estimation result and the information on the image change may be used.
- the operator observes the narrow-band image and image changes refers to the estimated irradiation time of the therapeutic light, and judges whether or not additional irradiation is necessary for each region and the irradiation time of the therapeutic light.
- a change in tissue before and after treatment is calculated using a narrow-band light image, and information based on the change is displayed, thereby providing the operator with therapeutic light. to judge whether additional irradiation is necessary.
- changes in tissues and blood vessels before and after treatment are calculated at the tissue level based on narrow-band optical images that depict tissues and blood vessels. can be irradiated with light.
- the irradiation time of the therapeutic light is estimated based on the narrow-band light image, and the estimation result is used by the operator to make a suitable judgment when irradiating the therapeutic light.
- the sixth embodiment may be combined with the fifth embodiment to output an estimation result obtained by combining the therapeutic light output and the irradiation time.
- the estimation unit 416 prepares in advance a narrow-band light image for comparison associated with the therapeutic light output and irradiation time, and the narrow-band light image for comparison is prepared in advance. and the feature amount of the narrow-band light image to be processed may be compared to estimate the therapeutic light output and irradiation time.
- FIG. 19 is a block diagram showing a schematic configuration of an endoscope system according to Embodiment 7 of the present invention.
- An endoscope system 1C according to the seventh embodiment has the same configuration as the endoscope system 1B according to the fourth embodiment.
- the processing device 4 ⁇ /b>B is electrically connected to the treatment instrument device 6 , and the controller 44 controls emission of therapeutic light from the treatment instrument 62 .
- the processing device 4B executes processing according to the flow of FIG. 12 when performing PIT.
- the control unit 44 controls the irradiation range, irradiation timing, and irradiation time of the therapeutic light. Specifically, the control unit 44 sets, for example, the light intensity (output value) and the irradiation time corresponding to the preset irradiation light amount for the irradiation range set by the operator.
- the control unit 44 starts irradiation control of the treatment light with the pressing of the switch of the operation input unit 611 as a trigger.
- control unit 44 when performing additional irradiation, sets the shape of the irradiation range of the therapeutic light emitted from the treatment instrument 62 according to the boundary region of the target, and presses the switch of the operation input unit 611 as a trigger. Irradiation control of therapeutic light is started. Further, in Embodiment 7, the control unit 44 performs control to alternately emit the narrowband light and the treatment light according to the flowchart of FIG. 12 . The narrowband light and therapeutic light may be emitted simultaneously.
- a change in tissue before and after treatment is calculated using a narrow-band light image, and information based on the change is displayed, thereby providing the operator with therapeutic light. to judge whether additional irradiation is necessary.
- changes in tissues and blood vessels before and after treatment are calculated based on narrow-band optical images in which tissues and blood vessels are visualized, and the treatment effect is calculated at the tissue level. can be irradiated with light.
- the treatment light irradiation process is controlled by the control unit 44, so that the burden on the operator can be reduced.
- the light source device 3 is separate from the processing device 4 in the first to seventh embodiments described above, the light source device 3 and the processing device 4 may be integrated. Further, in Embodiments 1 to 7, examples in which therapeutic light is emitted from a treatment tool have been described, but the light source device 3 may emit therapeutic light.
- the excitation light and the treatment light may be in the same wavelength band (same center wavelength) or different wavelength bands (center wavelength).
- the treatment light (excitation light) may be emitted from the treatment tool 62 or the excitation light source, and either the excitation light source or the treatment tool 62 may be omitted.
- exciting the PIT antibody drug for example, near-infrared light L P with a central wavelength of 690 nm is used.
- the endoscope system according to the present invention is the endoscope system 1 using the flexible endoscope 2 whose observation target is biological tissue in the subject.
- the camera head is connected to the eyepiece of an optical endoscope such as a rigid endoscope, an industrial endoscope that observes the properties of materials, a fiberscope, or an optical viewing tube. It can also be applied to the endoscope system used.
- the phototherapy device, phototherapy method, and phototherapy program according to the present invention are useful for appropriately confirming therapeutic effects.
- Reference Signs List 1 1A to 1C endoscope system 2 endoscope 3 light source device 4, 4A, 4B processing device 5 display device 6 treatment instrument device 21 insertion section 22 operation section 23 universal cord 24 tip section 25 bending section 26 flexible tube section 31 light source section 32 illumination control section 33 light source driver 41, 41A, 41B image processing section 42 synchronization signal generation section 43 input section 44 control section 45 storage section 61 treatment instrument operation section 62 treatment instrument 241 light guide 242 illumination lens 243 optical system 244 Imaging element 311 White light source 312 Narrow band light source 411 White light image generator 412 Narrow band light image generator 413 Fluorescence image generator 414 Display image generator 415 Image change calculator 416 Estimator
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Surgery (AREA)
- Public Health (AREA)
- Radiology & Medical Imaging (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Pathology (AREA)
- Veterinary Medicine (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Biophysics (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Signal Processing (AREA)
- Endoscopes (AREA)
Abstract
Description
1.癌細胞への直接傷害作用
2.血流変化に起因する間接傷害作用
3.免疫活性化に起因する間接障害作用
また、癌が拡大すると、毛細血管が増え粘膜表面が込み入った模様に変わることが知られている。上記2の血流変化に起因する間接傷害作用によって、治療光照射部位周辺では、粘膜表層の毛細血管と粘膜微細模様とが変化する。そのため、粘膜表層の毛細血管および粘膜微細模様の変化は、治療効果を確認するのに重要な指標となる。
図1は、本発明の実施の形態1に係る内視鏡システムの概略構成を示す図である。図2は、本実施の形態1に係る内視鏡システムの概略構成を示すブロック図である。図3は、本実施の形態1にかかる内視鏡の先端構成を説明する図である。
なお、PITの抗体薬剤を励起させる場合、例えば690nmを中心波長とする近赤外光(例えば図4に示す660nm以上710nm以下の波長帯域の光LP)が用いられる。
ここで、光学系243、撮像素子244および画像生成部によって、画像取得部が構成される。例えば、狭帯域光の照明によって形成される像を取得する場合、光学系243、撮像素子244および狭帯域光画像生成部412は狭帯域光画像取得部を構成する。
このため、光源装置3、画像処理部41、制御部44、内視鏡2は、生成された同期信号によって、互いに同期をとって動作する。
ここで、処置具62が備える照明光学系は、治療光の照射範囲を変更できる構成としてもよい。例えば、処置具操作部61の制御のもと、焦点距離を変更可能な光学系や、DMD(Digital Micromirror Device)等によって構成され、被写体に照射する光のスポット径や、照射範囲の形状を変更することができる。
術者は、白色光画像を観察して腫瘍B1、B2を含む領域を照射領域として決定する。また、必要に応じて、照射領域に狭帯域光や励起光を照射して、狭帯域光画像や蛍光画像を取得する。
ここで、ステップS102、S103の順で狭帯域光と励起光とを交互に切り替えて照明することによって、漏れ光等を抑制して取得する画像の画質を向上させることができる。なお、画質を向上させるうえで狭帯域光と励起光とを別々に照射することが好ましいが、ステップS102およびS103を同時に実施してもよい。
追加照射を行う際には、例えば照明光学系において、光の照射範囲の形状を境界領域に合わせる制御を行ったり、術者がスポット径を調整したりして治療光の照射を行う。
次に、実施の形態2について、図11~図14を参照して説明する。図11は、本発明の実施の形態2にかかる内視鏡システムの概略構成を示すブロック図である。本実施の形態2にかかる内視鏡システム1Aは、実施の形態1にかかる内視鏡システム1の処理装置4に代えて処理装置4Aを備える。処理装置4A以外の構成は内視鏡システム1と同じであるため、説明を省略する。
なお、ステップS201とステップS202とは、処理の順番が逆であってもよい。
なお、ステップS204とステップS205とは、処理の順番が逆であってもよい。
なお、画像変化算出部415は、狭帯域光画像の画像変化と、蛍光画像の画像変化(蛍光強度の変化)とを算出した場合、各画像変化を用いて画像変化を示す一つの値を算出してもよいし、各画像変化をそれぞれ独立した値として算出してもよい。
追加照射を行う際には、例えば照明光学系において、光の照射範囲の形状を境界領域に合わせる制御を行ったり、術者がスポット径を調整したりして治療光の照射を行う。
次に、実施の形態3について、図15を参照して説明する。本実施の形態3にかかる内視鏡システムは、実施の形態2にかかる内視鏡システム1Aと同じであるため、説明を省略する。以下、実施の形態2とは異なる処理について説明する。
次に、実施の形態4について、図16、図17Aおよび図17Bを参照して説明する。図16は、本発明の実施の形態3にかかる内視鏡システムの概略構成を示すブロック図である。本実施の形態3にかかる内視鏡システム1Bは、実施の形態2にかかる内視鏡システム1Aの処理装置4Aに代えて処理装置4Bを備える。処理装置4B以外の構成は内視鏡システム1と同じであるため、説明を省略する。
次に、実施の形態5について、図17A、17Bを参照して説明する。本実施の形態5にかかる内視鏡システムは、実施の形態4にかかる内視鏡システム1Bと同じであるため、説明を省略する。以下、実施の形態4とは異なる処理について説明する。
術者は、狭帯域画像や画像変化を観察するとともに、治療光の推定出力値を参照し、各領域について追加照射が必要か否か、および、治療光の出力(エネルギー)を判断する。
次に、実施の形態6について、図18A、18Bを参照して説明する。本実施の形態6にかかる内視鏡システムは、実施の形態4にかかる内視鏡システム1Bと同じであるため、説明を省略する。以下、実施の形態4とは異なる処理について説明する。
術者は、狭帯域画像や画像変化を観察するとともに、治療光の推定照射時間を参照し、各領域について追加照射が必要か否か、および、治療光の照射時間を判断する。
次に、実施の形態7について、図19を参照して説明する。図19は、本発明の実施の形態7にかかる内視鏡システムの概略構成を示すブロック図である。本実施の形態7にかかる内視鏡システム1Cは、実施の形態4にかかる内視鏡システム1Bと同じ構成を備える。内視鏡システム1Cでは、処理装置4Bが、処置具装置6と電気的に接続し、制御部44によって、処置具62からの治療光の出射制御を行う。
また、本実施の形態7において、制御部44は、図12のフローチャートにしたがって、狭帯域光と治療光とを交互に出射する制御を行う。なお、狭帯域光と治療光を同時に出射してもよい。
治療対象部位に光治療用の薬剤を投与する工程と、
前記治療対象部位に治療光を照射して、治療対象部位に結合させた薬剤を反応させる工程と、
前記治療対象部位に狭帯域光を照射して、治療後の狭帯域光画像を取得する工程と、
前記治療対象部位に励起光を照射して、治療後の蛍光画像を取得する工程と、
前記狭帯域光画像と前記蛍光画像とを重ね合わせた重ね合わせ画像を生成する工程と、
前記重ね合わせ画像を用いて、治療光の照射を継続するか否かを判断する工程と、
を含む光治療方法。
2 内視鏡
3 光源装置
4、4A、4B 処理装置
5 表示装置
6 処置具装置
21 挿入部
22 操作部
23 ユニバーサルコード
24 先端部
25 湾曲部
26 可撓管部
31 光源部
32 照明制御部
33 光源ドライバ
41、41A、41B 画像処理部
42 同期信号生成部
43 入力部
44 制御部
45 記憶部
61 処置具操作部
62 処置具
241 ライトガイド
242 照明レンズ
243 光学系
244 撮像素子
311 白色光源
312 狭帯域光源
411 白色光画像生成部
412 狭帯域光画像生成部
413 蛍光画像生成部
414 表示画像生成部
415 画像変化算出部
416 推定部
Claims (10)
- 薬剤を反応させる治療光を出射する治療光出射部と、
可視光域の一部の波長帯域の光からなる狭帯域光を出射する狭帯域光出射部と、
前記薬剤を励起する励起光を出射する励起光出射部と、
前記治療光の照射位置に照射された前記狭帯域光によって得られる狭帯域光画像を取得する狭帯域光画像取得部と、
前記治療光の照射位置に照射された前記励起光によって得られる蛍光画像を取得する蛍光画像取得部と、
前記狭帯域光画像と前記蛍光画像とを重ね合わせた重ね合わせ画像を生成する表示画像生成部と、
を備える光治療装置。 - 前記治療光の照射前後の前記狭帯域光画像の時間的な変化を算出する画像変化算出部、
をさらに備える請求項1に記載の光治療装置。 - 前記画像変化算出部は、治療光の照射前後の前記蛍光画像における蛍光強度の時間的な変化を算出する、
請求項2に記載の光治療装置。 - 前記表示画像生成部は、前記狭帯域光画像および前記蛍光画像を、それぞれに対して設定された明るさまたは透過率で重ね合わせることによって前記重ね合わせ画像を生成する、
請求項1に記載の光治療装置。 - 前記画像変化算出部は、前記狭帯域光画像を複数の領域に分割し、該分割したそれぞれの領域における画像の変化量を算出する、
請求項2に記載の光治療装置。 - 前記表示画像生成部は、前記治療光の照射前の重ね合わせ画像と、前記治療光の照射後の重ね合わせ画像とを並べた表示画像を生成する、
請求項1に記載の光治療装置。 - 前記画像変化算出部が算出した画像の変化に基づいて、前記治療光の出力を推定する推定部、
をさらに備える請求項2に記載の光治療装置。 - 前記画像変化算出部が算出した画像の変化に基づいて、前記治療光の照射時間を推定する推定部、
をさらに備える請求項2に記載の光治療装置。 - 薬剤を反応させる治療光を、治療部位に照射して治療効果を確認するための光治療方法であって、
薬剤を反応させる治療光の照射位置に照射された、可視光域の一部の波長帯域の光からなる狭帯域光によって得られる狭帯域光画像を取得する狭帯域光画像取得ステップと、
前記治療光の照射位置に照射された、前記薬剤を励起する励起光によって得られる蛍光画像を取得する蛍光画像取得ステップと、
前記狭帯域光画像と前記蛍光画像とを重ね合わせた重ね合わせ画像を生成する表示画像生成ステップと、
を含む光治療方法。 - 薬剤を反応させる治療光を、治療部位に照射して治療効果を確認するため情報を生成する光治療装置に、
薬剤を反応させる治療光の照射位置に照射された、可視光域の一部の波長帯域の光からなる狭帯域光によって得られる狭帯域光画像を取得する狭帯域光画像取得ステップと、
前記治療光の照射位置に照射された、前記薬剤を励起する励起光によって得られる蛍光画像を取得する蛍光画像取得ステップと、
前記狭帯域光画像と前記蛍光画像とを重ね合わせた重ね合わせ画像を生成する表示画像生成ステップと、
を実行させる光治療プログラム。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2021/016734 WO2022230040A1 (ja) | 2021-04-27 | 2021-04-27 | 光治療装置、光治療方法および光治療プログラム |
CN202180088716.XA CN116723885A (zh) | 2021-04-27 | 2021-04-27 | 光治疗装置、光治疗方法以及光治疗程序 |
JP2023516890A JPWO2022230040A1 (ja) | 2021-04-27 | 2021-04-27 | |
US18/220,425 US20230347170A1 (en) | 2021-04-27 | 2023-07-11 | Phototherapy device, phototherapy method, and computer-readable recording medium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2021/016734 WO2022230040A1 (ja) | 2021-04-27 | 2021-04-27 | 光治療装置、光治療方法および光治療プログラム |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US18/220,425 Continuation US20230347170A1 (en) | 2021-04-27 | 2023-07-11 | Phototherapy device, phototherapy method, and computer-readable recording medium |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022230040A1 true WO2022230040A1 (ja) | 2022-11-03 |
Family
ID=83846784
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2021/016734 WO2022230040A1 (ja) | 2021-04-27 | 2021-04-27 | 光治療装置、光治療方法および光治療プログラム |
Country Status (4)
Country | Link |
---|---|
US (1) | US20230347170A1 (ja) |
JP (1) | JPWO2022230040A1 (ja) |
CN (1) | CN116723885A (ja) |
WO (1) | WO2022230040A1 (ja) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008526326A (ja) * | 2005-01-10 | 2008-07-24 | チョンチン・ハイフ(エイチアイエフユー)・テクノロジー・カンパニー・リミテッド | 高強度集束超音波療法のための方法および装置 |
JP2012024283A (ja) * | 2010-07-22 | 2012-02-09 | Fujifilm Corp | 内視鏡診断装置 |
JP2012115406A (ja) * | 2010-11-30 | 2012-06-21 | Fujifilm Corp | 内視鏡装置 |
-
2021
- 2021-04-27 CN CN202180088716.XA patent/CN116723885A/zh active Pending
- 2021-04-27 WO PCT/JP2021/016734 patent/WO2022230040A1/ja active Application Filing
- 2021-04-27 JP JP2023516890A patent/JPWO2022230040A1/ja active Pending
-
2023
- 2023-07-11 US US18/220,425 patent/US20230347170A1/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008526326A (ja) * | 2005-01-10 | 2008-07-24 | チョンチン・ハイフ(エイチアイエフユー)・テクノロジー・カンパニー・リミテッド | 高強度集束超音波療法のための方法および装置 |
JP2012024283A (ja) * | 2010-07-22 | 2012-02-09 | Fujifilm Corp | 内視鏡診断装置 |
JP2012115406A (ja) * | 2010-11-30 | 2012-06-21 | Fujifilm Corp | 内視鏡装置 |
Also Published As
Publication number | Publication date |
---|---|
JPWO2022230040A1 (ja) | 2022-11-03 |
US20230347170A1 (en) | 2023-11-02 |
CN116723885A (zh) | 2023-09-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP2023010809A (ja) | 医療画像処理装置、内視鏡システム、医療画像処理装置の作動方法及びプログラム、記録媒体 | |
JP6001219B1 (ja) | 内視鏡システム | |
JP2012000160A (ja) | 内視鏡装置 | |
WO2017115442A1 (ja) | 画像処理装置、画像処理方法および画像処理プログラム | |
JP7328432B2 (ja) | 医療用制御装置、医療用観察システム、制御装置及び観察システム | |
JP2010104391A (ja) | 蛍光観察用プローブ | |
WO2022230040A1 (ja) | 光治療装置、光治療方法および光治療プログラム | |
US20230000330A1 (en) | Medical observation system, medical imaging device and imaging method | |
WO2022224454A1 (ja) | 光治療装置、光治療方法および光治療プログラム | |
WO2022219783A1 (ja) | 光治療装置、光治療方法および光治療プログラム | |
WO2023127053A1 (ja) | 画像処理装置、光免疫治療システム、画像処理方法及び画像処理プログラム | |
JP2005211272A (ja) | 内視鏡装置 | |
WO2023248306A1 (ja) | 画像処理装置、光治療システム、画像処理方法、画像処理プログラムおよび光治療方法 | |
US20240115874A1 (en) | Endoscope system and phototherapy method | |
US20230371817A1 (en) | Endoscope system | |
JP4373726B2 (ja) | 自家蛍光観察装置 | |
WO2021181484A1 (ja) | 医療用画像処理装置、医療用撮像装置、医療用観察システム、画像処理方法およびプログラム | |
JP7434591B2 (ja) | 支援装置、内視鏡システム、支援方法およびプログラム | |
US20230248209A1 (en) | Assistant device, endoscopic system, assistant method, and computer-readable recording medium | |
JP2012228443A (ja) | 内視鏡装置及びその操作支援方法 | |
JP7441822B2 (ja) | 医療用制御装置及び医療用観察装置 | |
KR20170022571A (ko) | 형광 영상을 촬영하는 내시경 장치 | |
WO2018225316A1 (ja) | 医療用制御装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 21939202 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2023516890 Country of ref document: JP Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 202180088716.X Country of ref document: CN |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 21939202 Country of ref document: EP Kind code of ref document: A1 |