KR101766268B1 - Breathing synchronized signal obtain device for breathing synchronized delivery - Google Patents
Breathing synchronized signal obtain device for breathing synchronized delivery Download PDFInfo
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- KR101766268B1 KR101766268B1 KR1020150057406A KR20150057406A KR101766268B1 KR 101766268 B1 KR101766268 B1 KR 101766268B1 KR 1020150057406 A KR1020150057406 A KR 1020150057406A KR 20150057406 A KR20150057406 A KR 20150057406A KR 101766268 B1 KR101766268 B1 KR 101766268B1
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- patch
- light source
- point light
- camera
- tracking
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- FQUHEAZXGQFHOV-UHFFFAOYSA-N CCCCCC(CCN=O)C#CCC=C Chemical compound CCCCCC(CCN=O)C#CCC=C FQUHEAZXGQFHOV-UHFFFAOYSA-N 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
- A61N5/1048—Monitoring, verifying, controlling systems and methods
- A61N5/1064—Monitoring, verifying, controlling systems and methods for adjusting radiation treatment in response to monitoring
- A61N5/1065—Beam adjustment
- A61N5/1067—Beam adjustment in real time, i.e. during treatment
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
- A61N5/1048—Monitoring, verifying, controlling systems and methods
- A61N5/1049—Monitoring, verifying, controlling systems and methods for verifying the position of the patient with respect to the radiation beam
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
- A61N5/1048—Monitoring, verifying, controlling systems and methods
- A61N5/1064—Monitoring, verifying, controlling systems and methods for adjusting radiation treatment in response to monitoring
- A61N5/1068—Gating the beam as a function of a physiological signal
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
- A61N5/1048—Monitoring, verifying, controlling systems and methods
- A61N5/1064—Monitoring, verifying, controlling systems and methods for adjusting radiation treatment in response to monitoring
- A61N5/1069—Target adjustment, e.g. moving the patient support
- A61N5/107—Target adjustment, e.g. moving the patient support in real time, i.e. during treatment
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pathology (AREA)
- Radiology & Medical Imaging (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Biophysics (AREA)
- Physiology (AREA)
- Radiation-Therapy Devices (AREA)
Abstract
A respiration synchronization signal acquisition apparatus for respiration-synchrotron radiation therapy is disclosed.
The present invention relates to a luminescent patch attached to a human body and arranged so that a plurality of point light sources form apexes of a polygon; A camera for photographing the movement of the luminescent patch in real time; And acquiring a plurality of point light sources from the image captured by the camera, measuring a distance between the extracted point light sources, comparing the extracted distance with the actual distance between the point light sources, and acquiring the three-dimensional coordinates of the light- And a predicted trajectory signal generator for generating a trajectory curve of three dimensions and analyzing the trajectory curve to generate a predicted trajectory curve in real time and generating a predicted trajectory signal, Lt; / RTI >
Description
The present invention relates to an apparatus for acquiring a respiration synchronization signal for respiration synchronous radiation therapy.
Recently, radiotherapy methods have been improved in combination with computer and networking, radiation therapy treatment planning software, and medical imaging techniques. Such medical imaging techniques include, for example, computed tomography (CT), magnetic resonance imaging (MRI), ultrasound, positron emission tomography ("PET" : positron emission tomography). In some cases, techniques have been used to plan and deliver radiation therapy.
For example, a method of treating a moving target, such as a tumor in the lung, requires that only when the moving target enters a specified window in the trajectory, quot; gating ", i.e. delivering radiation. However, this method is not efficient because irradiation of the target with irradiation is performed only at periodic time intervals.
Another way to treat moving targets is by breathing synchronized delivery ("BSD"). This technique uses the expected track or path of motion that the target will follow during the course of treatment.
To do this, plan to assume that the target is staying on the anticipated track, and include the anticipated period and phase in the anticipated path through the entire course of the treatment plan. Using voice and video guidance, the patient can be made to follow strict and limited pathways.
The survival rate of patients with lung cancer was 21.9%, which was lower than the survival rate of 60.9%. The low survival rate of patients with lung cancer may be various, but poor radiotherapy is considered to be an important factor.
The reason for poor radiotherapy results in lung cancer is that the entire surface area of the organ due to respiration is treated with radiation, which increases the irradiation side of the radiation and increases the possibility of side effects. To solve these problems, a real-time tracking system is under development.
Gating Therapy is used as Real-time Position Management (RPM) to reduce the scope of investigation by quantifying the respiratory synchronization applied to the treatment of lung cancer patients.
Conventionally, a breathing signal acquisition method using an expensive infrared camera has been used. However, since a camera for infrared ray imaging has a large size, when the position of the patient is non-coplanar in a radiation treatment apparatus, Had limitations.
The present invention is to provide a breathing synchronization signal acquisition device for enabling breathing signal acquisition using a general camera.
A related prior art document is Korean Patent Laid-Open Publication No. 10-2008-0039919 (published on May 7, 2008) entitled " System and Method for Detecting Respiratory Condition of Patients Receiving Radiotherapy ".
It is an object of the present invention to provide a respiration synchronization signal acquisition device which can photograph a state of a patient in real time and acquire a respiration synchronization signal to predict a motion of a treatment part.
It is another object of the present invention to provide a breathing synchronization signal acquisition apparatus capable of acquiring three-dimensional motion of a patient using a luminescent patch and a general camera.
The present invention relates to a luminescent patch attached to a human body and arranged so that a plurality of point light sources form apexes of a polygon; A camera for photographing the movement of the luminescent patch in real time; And acquiring a plurality of point light sources from the image captured by the camera, measuring a distance between the extracted point light sources, comparing the extracted distance with the actual distance between the point light sources, and acquiring the three-dimensional coordinates of the light- And a predicted trajectory signal generator for generating a trajectory curve of three dimensions and analyzing the trajectory curve to generate a predicted trajectory curve in real time and generating a predicted trajectory signal, Lt; / RTI >
The predicted locus signal generator may transmit the generated predicted locus signal to the radiotherapy apparatus in real time.
Wherein the light emitting patch includes a patch body having a mounting surface attached to the measurement target portion and a tracking surface connected to the mounting surface, and a light emitting portion having one end fixed to the tracking surface, An optical fiber, and a light source for supplying light to the optical fiber.
Preferably, the predicted trajectory signal generating unit generates a predicted trajectory signal of the surface of the mounting surface.
The tracking surface may be angularly connected to the attachment surface.
It is further preferable that the light source unit is capable of adjusting the light emission illuminance.
When a plurality of patch bodies are provided, the plurality of patch bodies may be connected to one light source unit.
The respiration synchronization signal acquisition apparatus according to the present invention can acquire the point light source of the light source patch with the camera by using the light source patch, thereby improving the accuracy of the acquired information.
Further, the breathing synchronization signal acquisition apparatus according to the present invention can detect the movement of the human body three-dimensionally, thereby obtaining a more accurate breathing synchronization signal.
In addition, the respiration-tuned signal acquisition apparatus according to the present invention may separately form a light source unit to prevent the light source unit from interfering with the radiation treatment during the radiation therapy, thereby realizing tracking in real time.
FIG. 1 is a block diagram of a respiration synchronous signal acquisition apparatus for respiration-synchronous radiation therapy according to an embodiment of the present invention.
2 is a flowchart illustrating a method of generating a predicted locus signal of a predicted locus signal generator according to an exemplary embodiment of the present invention.
3 is a perspective view showing a first embodiment of a luminescent patch according to the present invention.
4 is a perspective view showing a second embodiment of the luminescent patch according to the present invention.
5 is a perspective view showing a third embodiment of the luminescent patch according to the present invention.
6 is a perspective view showing a fourth embodiment of the luminescent patch according to the present invention.
7 and 8 are use state diagrams showing a camera arrangement of a breathing synchronization signal acquisition apparatus according to the present invention.
The terms and words used in the present specification and claims should not be construed as limited to ordinary or preliminary meaning and the inventor shall properly define the concept of the term in order to describe its invention in the best possible way It should be construed in accordance with the meaning and concept consistent with the technical idea of the present invention. It should be noted that the embodiments described in the present specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention and do not represent all the technical ideas of the present invention, It should be understood that various equivalents and modifications are possible.
FIG. 1 is a block diagram of a respiration synchronous signal acquisition apparatus for respiration-synchronous radiation therapy according to an embodiment of the present invention.
As shown in the figure, an apparatus for acquiring a respiration synchronous signal for respiration synchronous radiation therapy according to an embodiment of the present invention includes a
The predicted
The
A polygon is formed by a point light source, and the camera recognizes the point light sources, thereby accurately tracking the three-dimensional position of the
At this time, the polygon can be a square or more polygons.
The
Conventionally, an infrared camera is used to acquire an image, and a reflector is attached to the measurement target portion to track the movement of the reflector. However, this structure is limited in that the angle of view of the reflector and the infrared camera is limited and the infrared camera is expensive there was. The present invention includes a luminescent patch (100) to photograph light emitted from the luminescent patch (100) with a general camera, thereby solving the problem of limitation of the angle of view due to the size of the infrared camera.
The expected trajectory
2 is a flowchart illustrating a method of generating a predicted locus signal of a predicted locus signal generator according to an exemplary embodiment of the present invention.
As shown, the predicted locus signal generation includes an image processing step S20, a locus curve generation step S22, and a predicted locus derivation step S24.
The image processing step S20 is a step of extracting a point light source from a frame of an image acquired by the
The trajectory curve generation step S22 calculates the distance between the point light sources extracted in the image processing step S20 and the distance between the point light sources in the actual
The expected trajectory deriving step S24 is a step of deriving an expected trajectory from the generated three-dimensional trajectory curve. The future trajectory can be derived by functioning the trajectory in such a manner that the generated three-dimensional trajectory curve is expressed by infinite or finite Fourier expansion.
Trajectory Curve The light expected trajectory is preferably generated for the point of contact with the light emitting patch and the human body. The luminescent patch of the present invention is for measuring the movement of the human body, and it is desirable that the portion contacting the human body leads to a predicted locus for a specific point on the attachment surface of the luminescent patch. For example, it is desirable to derive an expected trajectory for the face center of the attachment surface.
3 is a perspective view showing a first embodiment of a luminescent patch according to the present invention.
As shown in the figure, the light emission patch for acquiring the respiration tuning signal according to the present invention includes a
The
In the
Preferably, the
In particular, in the case of the
The
The
An
4 is a perspective view showing a second embodiment of the luminescent patch according to the present invention.
In the first embodiment, the
In the second embodiment, the
5 is a perspective view illustrating a luminescent patch for acquiring a breathing tuning signal according to a third embodiment of the present invention.
The present embodiment is characterized in that the angle between the
As shown, the angle of the
6 is a perspective view showing a fourth embodiment of the luminescent patch according to the present invention.
In this embodiment, a plurality of
7 and 8 are use state diagrams showing a camera arrangement of a breathing synchronization signal acquisition apparatus according to the present invention.
The
8, the
It is to be understood that the above-described embodiments are to be considered in all respects as illustrative and not restrictive, and the scope of the present invention will be indicated by the appended claims rather than by the foregoing detailed description. It is intended that all changes and modifications that come within the meaning and range of equivalency of the claims, as well as any equivalents thereof, be within the scope of the present invention.
100: Luminescent patch
110: Patch body
112: Mounting surface
114: Tracking surface
116: Hinge shaft
120: Optical fiber
130:
132: Light source
200: camera
300: predicted locus signal generator
500: Therapeutic device
Claims (7)
A camera for photographing the movement of the luminescent patch in real time; And
Dimensional coordinates of the light emitting patch with respect to the camera are obtained by comparing the extracted distance between the point light sources with the actual distance between the point light sources, Dimensional trajectory curve, analyzing the trajectory curve to generate a predicted trajectory curve in real time, and generating a predicted trajectory signal,
The light-
A patch body having a mounting surface attached to the measurement target portion and a tracking surface connected to the mounting surface; an optical fiber having one end fixed to the tracking surface and emitting light as a point light source on the tracking surface; And a light source unit for supplying light to the optical fiber,
The surface of the tracking surface is provided with a roughness on the surface of the tracking surface or is coated with a matte coating on the surface of the tracking surface,
Wherein the light source unit is capable of adjusting the light emission illuminance.
Wherein the predicted trajectory signal generator transmits the predicted trajectory signal to the radiotherapy apparatus in real time.
The predicted locus signal generator
And generates a predicted trajectory signal of the face punch of the attachment surface.
Wherein the tracking surface is angularly connected to the attachment surface. ≪ RTI ID = 0.0 > 8. < / RTI >
A plurality of patch bodies are provided,
Wherein the plurality of patch bodies are connected to one light source unit.
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KR1020150057406A KR101766268B1 (en) | 2015-04-23 | 2015-04-23 | Breathing synchronized signal obtain device for breathing synchronized delivery |
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KR1020150057406A KR101766268B1 (en) | 2015-04-23 | 2015-04-23 | Breathing synchronized signal obtain device for breathing synchronized delivery |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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KR20240084870A (en) | 2022-12-07 | 2024-06-14 | 영남대학교 산학협력단 | Time delay setting method and time delay setting system for respiratory gated radiotherapy plan |
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CN107481226B (en) * | 2017-07-27 | 2021-06-01 | 东软医疗系统股份有限公司 | Method and device for removing abnormal scanning data and PET system |
KR102457972B1 (en) | 2018-04-24 | 2022-10-24 | 사회복지법인 삼성생명공익재단 | The apparatus for generating respiratory signals, the system and operating method for respiratory gated radiotherapy |
KR102568269B1 (en) | 2021-06-09 | 2023-08-18 | 서울대학교산학협력단 | System for monitoring patient motion in radiation therapy based on inertial measurement unit sensor |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004533889A (en) * | 2001-06-26 | 2004-11-11 | バリアン・メディカル・システムズ・インコーポレイテッド | Method and system for predictive physiological gate drive |
JP2006507088A (en) * | 2002-11-25 | 2006-03-02 | バリアン・メディカル・システムズ・テクノロジーズ・インコーポレイテッド | Method and system for monitoring a subject's respiratory activity |
WO2014149429A1 (en) * | 2013-03-15 | 2014-09-25 | Varian Medical Systems, Inc. | Marker system with light source |
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2004533889A (en) * | 2001-06-26 | 2004-11-11 | バリアン・メディカル・システムズ・インコーポレイテッド | Method and system for predictive physiological gate drive |
JP2006507088A (en) * | 2002-11-25 | 2006-03-02 | バリアン・メディカル・システムズ・テクノロジーズ・インコーポレイテッド | Method and system for monitoring a subject's respiratory activity |
WO2014149429A1 (en) * | 2013-03-15 | 2014-09-25 | Varian Medical Systems, Inc. | Marker system with light source |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20240084870A (en) | 2022-12-07 | 2024-06-14 | 영남대학교 산학협력단 | Time delay setting method and time delay setting system for respiratory gated radiotherapy plan |
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