WO2022163383A1 - 画像処理装置、画像処理方法及び手術顕微鏡システム - Google Patents
画像処理装置、画像処理方法及び手術顕微鏡システム Download PDFInfo
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Definitions
- the present disclosure relates to an image processing device, an image processing method, and a surgical microscope system.
- the port should be placed at the pars plana of the ciliary body while avoiding blood vessels.
- the ports should be placed at a certain distance outside the limbus while avoiding orientations that fall in specific directions (eg, 3 o'clock and 9 o'clock of the clock position).
- Patent Document 1 proposes a technique for changing the position of a mark indicating a preoperative plan according to the result of eyeball tracking.
- the present disclosure proposes an image processing device, an image processing method, and a surgical microscope system capable of simplifying the work process related to ophthalmic surgery.
- An image processing apparatus includes an image input unit that receives an operative field image of a patient's eye, a site detection unit that detects a specific site of the eye in the operative field image, and the site detection unit and a display image generation unit that generates a display image including a first position index indicating a position a predetermined distance away in a specific direction from the specific site detected by the method.
- an image processing device receives an operating field image of a patient's eye, detects a specific portion of the eye in the operating field image, and moves from the specific portion in a specific direction. Generating a display image including a first position indicator indicating a position a predetermined distance away.
- a surgical microscope system includes a surgical microscope that obtains an surgical field image of a patient's eye, an image processing device that generates a display image, and a display device that displays the display image, wherein the image is
- the processing device includes an image input unit that receives the operative field image, a site detection unit that detects a specific site of the eye in the operative field image, and an image of the specific site detected by the site detection unit in a specific direction. and a display image generator for generating the display image including a first position index indicating a position separated by a predetermined distance.
- FIG. 1 is a diagram showing an example of a schematic configuration of a surgical microscope system according to a first embodiment
- FIG. 1 is a diagram showing an example of a schematic configuration of a surgical microscope according to a first embodiment
- FIG. 1 is a diagram showing an example of a schematic configuration of an image processing apparatus according to a first embodiment
- FIG. 4 is a diagram showing Example 1 of a display image according to the first embodiment
- 1 is a diagram showing an example of a schematic configuration of an image processing apparatus according to a second embodiment
- FIG. 10 is a diagram showing example 2 of a display image according to the second embodiment
- FIG. 11 is a diagram showing example 3 of a display image according to the second embodiment
- FIG. 10 is a diagram showing Example 4 of a display image according to the second embodiment
- FIG. 11 is a diagram showing example 5 of a display image according to the second embodiment
- FIG. 11 is a diagram showing example 6 of a display image according to the second embodiment
- FIG. 11 is a diagram showing example 7 of a display image according to the second embodiment
- FIG. 10 is a diagram showing an example 8 of a display image according to the second embodiment
- FIG. 11 is a diagram showing example 9 of a display image according to the second embodiment
- FIG. 10 is a diagram showing an example 10 of a display image according to the third embodiment
- FIG. 11 is a diagram showing an example 11 of a display image according to the third embodiment
- FIG. 12 is a diagram showing example 12 of a display image according to the third embodiment
- FIG. 13 is a diagram showing an example 13 of a display image according to the third embodiment
- FIG. 14 is a diagram showing an example 14 of a display image according to the third embodiment
- FIG. 15 is a diagram showing an example 15 of a display image according to the third embodiment
- FIG. 16 is a diagram showing example 16 of a display image according to the third embodiment
- FIG. 17 is a diagram showing an example 17 of a display image according to the third embodiment
- FIG. 18 is a diagram showing an example 18 of a display image according to the third embodiment
- 1 is a diagram showing an example of a schematic configuration of a computer according to each embodiment of the present disclosure;
- First Embodiment 1-1 Example of schematic configuration of surgical microscope system 1-2.
- Example of schematic configuration of surgical microscope 1-3 Schematic Configuration of Image Processing Apparatus and Example of Image Processing 1-4. Action and effect 2.
- Second embodiment 2-1 Schematic Configuration of Image Processing Apparatus and Example of Image Processing 2-2.
- Action/Effect 2-3 An example of a fixed pattern display function3.
- Third Embodiment 3-1 Example of boundary display function with different display modes 3-2. Action/Effect 4. 5.
- FIG. 1 is a diagram showing an example of a schematic configuration of a surgical microscope system 1 according to the first embodiment.
- the surgical microscope system 1 has a surgical microscope 10 and a patient bed 20.
- This surgical microscope system 1 is a system used for eye surgery. The patient undergoes eye surgery while lying on the patient bed 20 . An operator, who is a doctor, performs surgery while observing the patient's eye through the surgical microscope 10 .
- the surgical microscope 10 has an objective lens 11, an eyepiece lens 12, an image processing device 13, and a monitor 14.
- the objective lens 11 and the eyepiece lens 12 are lenses for magnifying and observing the eye of the patient to be operated.
- the image processing device 13 outputs various images, various information, etc. by performing predetermined image processing on the image captured through the objective lens 11 .
- the monitor 14 displays an image captured through the objective lens 11, various images generated by the image processing device 13, various information, and the like. This monitor 14 may be provided separately from the surgical microscope 10 .
- the operator looks into the eyepiece 12 and performs surgery while observing the patient's eye through the objective lens 11. Further, the operator performs surgery while confirming various images (for example, an image before image processing, an image after image processing, etc.) and various information displayed on the monitor 14 .
- various images for example, an image before image processing, an image after image processing, etc.
- FIG. 2 is a diagram showing an example of a schematic configuration of the surgical microscope 10 according to the first embodiment.
- the surgical microscope 10 includes, in addition to the objective lens 11, the eyepiece lens 12, the image processing device 13, and the monitor 14, a light source 51, an observation optical system 52, a front image capturing unit 53, a tomographic It has an image capturing unit 54 , a presentation unit 55 , an interface unit 56 and a speaker 57 .
- the monitor 14 and the presentation unit 55 correspond to display devices.
- the light source 51 emits illumination light under the control of the control unit 13A included in the image processing device 13 to illuminate the eyes of the patient.
- the observation optical system 52 is composed of optical elements such as the objective lens 11, a half mirror 52a, and lenses (not shown).
- the observation optical system 52 guides the light (observation light) reflected from the patient's eye to the eyepiece 12 and the front image capturing section 53 .
- the light reflected from the patient's eye enters the half mirror 52a as observation light via the objective lens 11, a lens (not shown), or the like.
- Approximately half of the observation light incident on the half mirror 52 a passes through the half mirror 52 a as it is, and enters the eyepiece 12 via the transmission type presentation unit 55 .
- the other half of the observation light incident on the half mirror 52 a is reflected by the half mirror 52 a and enters the front image capturing section 53 .
- the front image capturing unit 53 is composed of, for example, a video camera.
- the front image photographing unit 53 receives the observation light incident from the observation optical system 52 and photoelectrically converts it to obtain an image of the patient's eye observed from the front, that is, an image of the patient's eye photographed approximately in the eye axis direction. A front image is taken.
- the front image capturing unit 53 captures (captures) a front image under the control of the image processing device 13 and supplies the obtained front image to the image processing device 13 .
- the tomographic image capturing unit 54 is configured by, for example, an optical coherence tomography (OCT), a Scheimpflug camera, or the like.
- OCT optical coherence tomography
- the tomographic image capturing unit 54 captures (pictures) a tomographic image, which is a cross-sectional image of the patient's eye, under the control of the image processing device 13 and supplies the obtained tomographic image to the image processing device 13 .
- a tomographic image is an image of a cross section of a patient's eye in a direction substantially parallel to the eye axis direction.
- the tomographic image capturing unit 54 acquires a tomographic image, for example, using infrared light based on the principle of interference. may be a common optical path.
- the eyepiece 12 condenses the observation light incident from the observation optical system 52 via the presentation unit 55 and forms an optical image of the patient's eye. An optical image of the patient's eye is thereby observed by the operator looking through the eyepiece 12 .
- the presentation unit 55 is composed of a transmissive display device or the like, and is arranged between the eyepiece 12 and the observation optical system 52 .
- the presentation unit 55 transmits observation light incident from the observation optical system 52 and makes it enter the eyepiece 12, and also displays various images (for example, a front image, a tomographic image, etc.) and various information supplied from the image processing device 13. are also presented (displayed) as necessary.
- various images, various information, and the like may be presented, for example, superimposed on the optical image of the patient's eye, or may be presented in the periphery of the optical image so as not to interfere with the optical image.
- the image processing device 13 has a control section 13A that controls the operation of the surgical microscope 10 as a whole.
- the control section 13A changes the illumination conditions of the light source 51 or changes the zoom magnification of the observation optical system 52 .
- the control unit 13A controls image acquisition by the front image capturing unit 53 and the tomographic image capturing unit 54 based on the operation information of the operator or the like supplied from the interface unit 56 and the like.
- the interface unit 56 is composed of, for example, a communication unit and the like.
- the communication unit receives commands from an operation unit such as a touch panel superimposed on the monitor 14, a controller, a remote controller (not shown), or the like, and communicates with external devices.
- the interface unit 56 supplies the image processing apparatus 13 with information and the like according to the operation of the operator.
- the interface unit 56 also outputs device control information and the like for controlling the external device supplied from the image processing apparatus 13 to the external device.
- the monitor 14 displays various images such as front images and stereo images and various information according to control by the control unit 13A of the image processing device 13 .
- the speaker 57 emits a buzzer sound, a melody sound, or the like in order to notify the operator or the like of the dangerous situation. Outputs sound, message (voice), and the like.
- the surgical microscope 10 may be provided with a rotating light or indicator light (lamp) for informing the operator or the like of a dangerous situation.
- a specific part of the eye is detected by using image recognition on the surgical field image, and a position a predetermined distance away from the specific part of the eyeball in a specific direction is marked. For example, by superimposing a mark that serves as an index for treatment on a portion or the like at a certain distance from a specific site, it is possible to eliminate the need for distance measurement by the operator and simplify the work process.
- the mark functions as a position indicator.
- FIG. 3 is a diagram showing an example of a schematic configuration (configuration and processing flow) of the image processing apparatus 13 according to the first embodiment.
- the image processing device 13 includes an image input unit 13a, an eyeball tracking unit (eyeball tracking unit) 13b, and a display image generation unit 13c.
- the image input unit 13a receives an operating field image (front image) from the front image capturing unit 53 (see FIG. 2), and receives the operating field image (for example, an operating field image at the start of surgery or a real-time image during surgery). surgical field image, etc.) to the eyeball tracking unit 13b, the display image generation unit 13c, and the like.
- an operating field image front image
- the operating field image for example, an operating field image at the start of surgery or a real-time image during surgery.
- surgical field image, etc. to the eyeball tracking unit 13b, the display image generation unit 13c, and the like.
- the eyeball tracking unit 13b tracks the eyeball in the real-time surgical field image, for example, by comparing the surgical field image at the start of the surgery with the real-time surgical field image.
- the eyeball tracking unit 13b detects the posture and position of the eyeball in the real-time surgical field image and a specific part of the eye (for example, the limbus of the cornea) by tracking the eyeball, and detects the detection result (for example, the eyeball).
- Tracking result information (tracking result information) regarding posture, position, position of corneal limbus, etc.) is supplied to the display image generation unit 13c.
- the eyeball posture information which is part of the detection result, includes position information about the direction of the eyeball around the eye axis (position in the rotational direction around the eye axis).
- the eyeball tracking unit 13b corresponds to a site detection unit that detects a specific site of the eye.
- the display image generation unit 13c Based on the tracking result information supplied from the eyeball tracking unit 13b, the display image generation unit 13c generates a display image including a mark indicating a position a predetermined distance away from a specific part of the eyeball in a specific direction. For example, installation information regarding a specific direction and a predetermined distance for installing ports is set in advance.
- the display image generation unit 13c has preset installation information, and based on the installation information, sets a mark at a position a predetermined distance away in a specific direction from the position of the specific site based on the tracking result information.
- the display image generation unit 13c changes the posture of the eyeball based on the eyeball posture information and the position information included in the tracking result information.
- a display image is generated while changing the orientation and position of the mark in accordance with the change in position.
- the image processing apparatus 13 having such a configuration will be described by taking as an example a guidance function that assists the operator in ophthalmic surgery, for example, a guidance function that guides the position of port installation in vitreous surgery. Specifically, the port installation position is guided by a mark.
- a port as a surgical instrument in the eye.
- a port for supplying perfusate a port for inserting lighting
- a port for illuminating surgical tools One or two ports for lighting may be added. All of these ports are provided in the pars plana of the ciliary body, and when the pars plana of the ciliary body is viewed from the outside of the eye, the port is placed at a position approximately 4 mm from the corneal limbus, although there are individual differences. There are many things. Therefore, it is common to measure a position of about 4 mm with a caliper or the like and install the port at that position. Note that approximately 4 mm is a statistical distance from the limbus to the port installation position.
- 3 o'clock and 9 o'clock directions blood vessels (for example, the posterior ciliary artery) are present near the 3 o'clock direction and 9 o'clock direction (hereinafter simply referred to as 3 o'clock and 9 o'clock directions) of the clock position when viewed from the eye angle in the sitting position before surgery.
- the port is placed around the area to prevent injury or bleeding.
- the above 3 o'clock and 9 o'clock directions are slightly rotated with respect to the sitting position due to the supine position during surgery. often
- the present embodiment provides the following guidance.
- the eyeball tracking unit 13b Based on the image from the image input unit 13a, the eyeball tracking unit 13b detects the position of the corneal limbus in the eyeball, and supplies information on the detection result to the display image generation unit 13c.
- the display image generation unit 13c based on the corneal limbus detection result from the eyeball tracking unit 13b, the image from the image input unit 13a is displayed in a specific direction from the center of the corneal limbus, which is an example of a specific region, toward each treatment target point.
- a mark for guidance is drawn at a predetermined distance (for example, about 4 mm) from the limbus.
- Such guidance eliminates the need for the operator to perform positioning using a caliper or the like with reference to the corneal limbus, thereby reducing the complexity of the operation.
- Various images can be used as the display image for guidance.
- FIG. 4 is a diagram showing Example 1 of a display image according to the first embodiment.
- the detection result of the corneal limbus that is, a mark A1 indicating the corneal limbus is presented, and an annular mark M1 is presented at a position a predetermined distance away from the corneal limbus.
- These marks A1 and M1 are superimposed on the real-time operating field image to generate a display image.
- This display image is displayed by both or one of the monitor 14 and the presentation unit 55 .
- the mark M1 indicates a position at a certain predetermined distance (for example, about 4 mm) away from the corneal limbus in a specific direction from the center of the corneal limbus toward each treatment target point.
- the mark M1 corresponds to the first position index.
- the mark A1 corresponds to a second position index.
- Such a display image is visually recognized by the operator, and the operator can grasp the treatment target position.
- the eyeball tracking unit 13b for the operative field image it becomes possible to detect a specific part of the eyeball, and based on the detected information, the display image generation unit 13c moves from the specific part in a specific direction.
- a position can be marked at a distance. This makes it possible to determine the position of the treatment target.
- the operator can avoid the troublesomeness of performing the measurement by himself/herself using an instrument such as a caliper. Further, detailed guidance that cannot be performed only from the front image of the eyeball becomes possible.
- the operator can grasp the deviation. This can be reflected in the treatment target position such as the port installation position.
- the image input unit 13a receives the operative field image of the patient's eye
- the eyeball tracking unit 13b which is an example of the part detection unit, detects the position of the eye in the operative field image.
- the specific site is detected, and the display image generation unit 13c generates a display image including a first position index (for example, mark M1 or the like) indicating a position separated from the specific site by a predetermined distance in a specific direction.
- a first position index for example, mark M1 or the like
- the operator can grasp a position that is a predetermined distance away in a specific direction from a specific part of the eye, that is, a treatment target position. Therefore, the operator does not need to perform the measurement by himself/herself using a tool such as a caliper in order to grasp the position to be treated, thus simplifying the work process related to ophthalmic surgery.
- the first position index may be, for example, a curved line or a circular line indicating a position a predetermined distance away from the specific site, or a line segment that roughly coincides with a part of the circular line. good. This makes it possible to present multiple treatment target positions (for example, the positions where three ports are installed) existing on curves, circular lines, and line segments, so that the operator can easily grasp the treatment target position. can.
- the display image generation unit 13c generates a second position index (for example, mark A1) different from the first position index related to the treatment target position, and displays a display including the first position index and the second position index. Generate an image.
- a mark A1 which is an example of the second position index, is a mark indicating the corneal limbus, which is a specific portion.
- FIG. 5 is a diagram showing an example of a schematic configuration (configuration and processing flow) of the image processing apparatus 13 according to the second embodiment.
- the image processing apparatus 13 includes a preoperative information receiving section 13d in addition to the sections 13a to 13c according to the first embodiment.
- the preoperative information receiving unit 13d receives preoperative information based on the preoperative plan for the patient's eye, and supplies the received preoperative information to the eyeball tracking unit 13b.
- the preoperative information includes information indicating the separation distance between a specific site (for example, the limbus of the cornea) and a treatment target point (treatment target position), information related to a specific site (for example, a blood vessel running portion in the eye), a predetermined This includes information indicating directions, etc.
- Information related to the specific part includes, for example, information related to the position and range of the specific part.
- the predetermined direction is, for example, the left-right direction (3 o'clock and 9 o'clock directions) perpendicular to the eye axis of the preoperative image of the eye, or a direction predetermined by the operator.
- the eyeball tracking unit 13b supplies the preoperative information supplied from the preoperative information receiving unit 13d to the display image generating unit 13c in addition to the tracking result information according to the first embodiment.
- the eyeball tracking unit 13b supplies the display image generating unit 13c with the posture and position of the eyeball in the real-time surgical field image and the tracking result information related to the specific part of the eye.
- the display image generation unit 13c generates a display image including a mark related to the treatment target point and a mark related to the preoperative information, based on the tracking result information and preoperative information supplied from the eyeball tracking unit 13b.
- the display image generation unit 13c uses, as marks related to preoperative information, a mark indicating a blood vessel running portion in the eye, a mark extending in the horizontal direction orthogonal to the eye axis of the preoperative image of the eye, or a mark predetermined by the operator. Generates a mark or the like that extends in the specified direction.
- the mark related to preoperative information is a mark having a posture related to the orientation of the eyeball around the eye axis (position in the rotational direction around the eye axis). Therefore, in addition to changing the position of the mark according to the change in eyeball position, the display image generation unit 13c also changes the position of the mark according to the change in the eyeball posture based on the eyeball posture information included in the tracking result information. A display image is generated while changing the posture. For example, the display image generation unit 13c adjusts the orientation (orientation) of the mark to match the amount and direction of change in the orientation (orientation) of the eyeball, and changes the orientation of the mark so as to eliminate the change in the orientation of the mark with respect to the eyeball.
- the distribution range of the pars plana of the ciliary body is measured before surgery and the measured distribution range of the pars plana of the ciliary body is input to the image processing device 13 as preoperative information, statistical (average) Appropriate port installation can be performed in consideration of individual differences without depending on the distance between the corneal limbus and the treatment target point.
- Alignment of the pars plana of the ciliary body between the preoperative image and the intraoperative image of the operative field is achieved by grasping the positional relationship between the preoperative image and the pars plana of the ciliary body before surgery.
- preoperative and intraoperative blood vessel pattern matching or iris pattern matching can be used. If the preoperative examination results of blood vessels can be used, more accurate surgery can be achieved than when the statistical positions of the preoperative 3 o'clock and 9 o'clock directions are used.
- FIG. 6 is a diagram showing example 2 of a display image according to the second embodiment. As shown in FIG. 6, in addition to the mark A1 and the mark M1 shown in FIG. 5, a mark M2 indicating a blood vessel running portion is presented. The mark M2 is a line having a constant width and indicating the position and range of the blood vessel running portion. Mark M2 corresponds to the second position index.
- the mark M1 is generated according to the separation distance between the corneal limbus and the treatment target point based on the preoperative information.
- the mark M2 is generated according to the blood vessel running portion based on the preoperative information. Porting at vessel sites should be avoided as it can lead to vessel damage and bleeding. Therefore, by presenting the mark M2, the doctor can grasp the detailed position of the running part of the blood vessel, so that the port can be placed in the vicinity of the blood vessel with low risk.
- FIG. 7 is a diagram showing Example 3 of a display image according to the second embodiment.
- each mark A1, M1 is presented as a perfect circle.
- marks M3 indicating the 3 o'clock and 9 o'clock directions based on preoperative information are presented.
- the mark M3 is, for example, a line with constant width and is overlaid on the eye.
- the orientation of the mark M3 may be changed according to the movement (orientation) of the eyeball so that it is the same at the start of the surgery and in real time.
- the mark M3 may be translucent so that the image immediately below the mark M3 is visible.
- Mark M3 corresponds to the second position index.
- the mark M1 it is possible to use a perfect circle, an ellipse, or a part thereof (such as an arc).
- the corneal limbus which is an example of a specific part, may be modeled in a simple shape such as a perfect circle or an ellipse.
- the mark A1 it is possible to use a perfect circle, an ellipse, or a part of them (an arc, etc.), like the mark M1.
- the blood vessels statistically run almost in the preoperative 3 o'clock and 9 o'clock directions.
- the operator visually recognizes the marks M3 indicating the 3 o'clock and 9 o'clock directions based on the preoperative information, and can grasp the position and range of the blood vessel in the surgical field image during the operation.
- FIG. 8 is a diagram showing Example 4 of a display image according to the second embodiment.
- the perfect circle mark M1 is a line with a constant width wider than that in FIG.
- the position where the pars plana of the ciliary body can be punctured has a constant width in terms of distance.
- the mark M1 a certain width and presenting the mark M1 with a certain width, it is possible for the operator to easily understand the position and range where the insertion into the pars plana of the ciliary body is possible.
- FIG. 9 is a diagram showing example 5 of a display image according to the second embodiment.
- the perfect circular mark A1 is partially presented as a plurality of partial marks A1a.
- the perfect circular mark M1 is partially presented as a plurality of partial marks M1a.
- Each partial mark A1a and each partial mark M1a are arranged at angles ⁇ , ⁇ , ⁇ .
- Partial mark M1a corresponds to the first position index.
- a straight line L1 extending in the extending direction of the mark M3 shown in FIG. 7 is used as a reference, and a straight line L2 having an angle ⁇ , a straight line L3 having an angle ⁇ , and a straight line L4 having an angle ⁇ exist with respect to the straight line L1.
- Partial marks A1a are presented at the intersections of the perfect circle mark A1 and the straight line L2, the intersections of the perfect circle mark A1 and the straight line L3, and the intersections of the perfect circle mark A1 and the straight line L4.
- Partial marks M1a are presented at the intersections of the perfect circle mark M1 and the straight line L2, the intersections of the perfect circle mark M1 and the straight line L3, and the intersections of the perfect circle mark M1 and the straight line L4. Any or all of the straight lines L1 to L4 may be presented.
- the directions based on preoperative information such as the mark M3 were used in the above, but the operator's eye posture at the start of the operation, etc. You may make it reflect a taste.
- an angular direction at the start of surgery determined in advance according to the preference of the operator. It may be used as a reference to provide a guide mark for port installation. This makes it possible to present marks that are easy for individual operators to see.
- FIG. 10 is a diagram showing example 6 of a display image according to the second embodiment.
- the partial mark M1a is a line with a constant width wider than that in FIG.
- the partial mark M1a which is a mark for guidance of the port installation position, may have a width. This makes it easier to understand the range of port installation positions.
- FIG. 11 is a diagram showing example 7 of a display image according to the second embodiment.
- the partial mark M1a is formed in a circular shape with a wider width (diameter) than in FIG.
- a figure such as a circle, a polygon, or a star may be used as a shape other than a line having a width. This makes it easier to understand the range of port installation positions.
- FIG. 12 is a diagram showing Example 8 of a display image according to the second embodiment.
- a mark M4 is presented to indicate the surgical site scheduled to be operated after the current surgery.
- the surgical site is, for example, a glaucoma surgical site.
- the mark of the glaucoma surgical site may be superimposed.
- the mark of the glaucoma surgical site may be the mark of the filter bleb position, or the mark of the range on the nasal side where many aqueous veins are distributed.
- Information about the planned surgical site (eg, information such as the position and extent of the planned surgical site) is included in the preoperative information.
- Mark M4 corresponds to the second position index.
- glaucoma patients may undergo surgery for lowering intraocular pressure such as trabeculectomy, but damage to sites such as the filtering bleb should be avoided before surgery for lowering intraocular pressure. is. Therefore, by presenting a mark of the position of the filter bleb, it is possible to help avoid damage to the site such as the filter bleb. In other words, by presenting a mark indicating a surgical site scheduled to be operated after the current surgery, it is possible to help avoid damage to the scheduled surgical site.
- the nasal side with many aqueous veins which is important for improving the efficiency of aqueous humor drainage by surgery
- the presentation of range is also useful in avoiding damage to the aqueous veins and achieving surgical results.
- a mark indicating the past surgical site operated before the current surgery may be presented. Again, this can help avoid damage to past surgical sites.
- each of the marks A1, A1a, M1 to M4, M1a, etc. may be translucent. Further, each of the marks A1, A1a, M1 to M4, M1a, etc. may be temporarily emphasized (to be conspicuous) or attenuated (not conspicuous), or may be periodically emphasized and attenuated repeatedly. (the cycle includes one cycle). As a result, it is possible to prevent the marks A1, A1a, M1 to M4, M1a, etc. from interfering with the surgery. Further, regarding the limbus mark A1, confirmation of the positional relationship between the corneal limbus and the corneal limbus mark A1 is facilitated.
- FIG. 13 is a diagram showing example 9 of a display image according to the second embodiment.
- the mark M5 is indicated by a display form of a plurality of dots (dot pattern) whose positions are fixed in advance.
- mark M5 is represented by a plurality of dots (for example, black circles) so as to indicate substantially the same position as mark M1 shown in FIG.
- each mark A1, A1a, M1, M1a, M2 to M4 may be expressed as mark M5. This makes it possible to measure the distance and orientation on the screen based on the installation interval of the dots. Details of such a fixed pattern display function will be described later.
- Various display images as described above are used, and these display images may be selectable by the operator, staff, or the like. Selection of a display image is realized by an input operation to the operation unit by an operator, staff, or the like. For example, the operator, staff, or the like operates the operation unit to select a display mode for displaying a desired display image. According to this selection, the display image generator 13c generates a display image based on the selected display mode. Similarly, regarding various images, the size, position, etc. of the images may be changed by the operator, staff, or the like. The display image generation unit 13c generates a display image by changing the size, position, etc. of the image according to the input operation to the operation unit by the operator, staff, or the like.
- a preoperative information receiving unit 13d that receives preoperative information based on the preoperative plan is further provided, and the display image generating unit 13c generates a first position index (for example, mark M1, M1a, M5, etc.) to generate a display image including the first position index.
- a first position index for example, mark M1, M1a, M5, etc.
- the display image generation unit 13c generates a second position index (for example, marks A1, A1a, M2, M3, M4, M5, etc.) different from the first position index related to the treatment target position based on the preoperative information. to generate a display image including the first position indicator and the second position indicator.
- a second position index for example, marks A1, A1a, M2, M3, M4, M5, etc.
- the operator can grasp other positions to be recognized during surgery while grasping the treatment target position. Therefore, the operator does not need to perform measurements by himself/herself using a tool such as a caliper in order to grasp the treatment target position and other positions to be recognized, thereby simplifying the work process related to ophthalmic surgery.
- the first position index may be, for example, a curved line or a ring-shaped line indicating a position a predetermined distance away from the specific part, or a line segment or a point-like figure roughly matching a part of the ring-shaped line. good. This makes it possible to present a plurality of treatment target positions (for example, positions where three ports are installed) existing on a curved or circular line, so that the operator can easily grasp the treatment target positions.
- the first position index may be a line having a constant width. This makes it easier for the operator to understand the range of the treatment target position, so that the operator can easily grasp the treatment target position.
- the preoperative information may include information indicating the running portion of blood vessels in the eye
- the second position index may be an index indicating the running portion of blood vessels.
- the preoperative information may include information indicating the horizontal direction orthogonal to the eye axis of the preoperative image of the eye, and the second position index may be the index extending in the horizontal direction.
- the preoperative information may include information indicating a predetermined direction predetermined by the operator, and the second position index may be an index extending in the predetermined direction.
- the second position index may be an index indicating a surgical site scheduled to be operated after the current surgery or a past surgical site operated before the current surgery. As a result, the operator can grasp the scheduled surgical site and the past surgical site, so that the surgical operation can be performed while avoiding these surgical sites.
- one or both of the first position indicator and the second position indicator may be translucent. As a result, it is possible to prevent the presented position index from interfering with the surgery.
- first position indicator and the second position indicator may be indicators that can be emphasized (made conspicuous) or attenuated (not conspicuous). This makes it possible to make the presented index stand out, or prevent the presented index from interfering with surgery.
- first position indicator and the second position indicator may be indicators that are repeatedly emphasized (emphasized) and attenuated (not conspicuous). This makes it possible to make the presented index stand out, or prevent the presented index from interfering with surgery.
- one or both of the first position indicator and the second position indicator may be indicators indicated by a display mode of a plurality of fixed-position dots. This makes it possible to easily present various indicators.
- Example of fixed pattern display function The mark M5 is presented (see FIG. 13) in the display mode of the plurality of dots (display image example 9), and is used as a reference for treatment in order to facilitate high-precision treatment even in an affected area with few landmarks.
- a medical observation system an example of the surgical microscope system 1 having a fixed pattern display function is realized. Features of the fixed pattern display function will be described.
- a plurality of fixed patterns such as dots having the same shape are displayed on an observation screen, which is an image of the surgical field.
- the mutual fixed patterns are arranged regularly in the vertical and horizontal directions (a diagonal lattice rotated by 45 degrees is also possible).
- the shape and arrangement of each fixed pattern does not change during surgery.
- the brightness, color, and transmittance with respect to the observation screen of each fixed pattern change individually.
- the brightness, color, and transmittance of each fixed pattern with respect to the viewing screen change only in a portion of one fixed pattern.
- the two types of shapes are, for example, images such as lengths and shorts of scales on a ruler.
- the arrangement of the two types of fixed patterns is also a regular arrangement in the vertical and horizontal directions.
- the two types of fixed patterns (A and B) are arranged alternately like "ABABAB". Alternatively, like “AAAABAAAABA", it is repeated that a plurality of A's are lined up and then one B's are arranged.
- Condition (1) is a case where the feature of the affected area corresponding to the feature set in advance is extracted from the observed image, and the extracted feature exists within a predetermined range.
- Condition (2) is when it exists within a preset range.
- the former is the state of the patient's eye obtained from the preoperative examination data, such as blood vessels, the shape of the pupil ring, the center of the pupil, and the pattern in the pupil.
- the position of the patient's eye is recognized, and the display position of the reference information for treatment is set in association with the patient's eye.
- the latter is the color, shape and size of the subject.
- Conditions to be applied at the same time may be a plurality of conditions with different contents.
- the brightness, color, and transmittance with respect to the observation screen of the fixed pattern changed under different conditions change differently.
- the change in the fixed pattern may be the same even under different conditions.
- the regular spacing of the fixed patterns is preset. Moreover, there are two or more types of intervals that can be selected in the setting.
- the regular arrangement intervals of the fixed patterns vary depending on the portion of the viewing screen. For example, the central portion of the screen may be closely spaced and the peripheral portion of the screen may be loosely spaced, or vice versa.
- a plurality of observation screens are simultaneously displayed by PIP/POP, and there are observation screens that display fixed patterns and observation screens that do not. Also, the interval between fixed pattern displays changes according to the screen size of the observation screen.
- a plurality of observation screens are simultaneously displayed by PIP/POP, and there is an observation screen that displays a fixed pattern, and an observation screen that displays a fixed pattern that differs from the fixed pattern in any of changes in intervals, shapes, brightness, and the like.
- the shape of the fixed pattern may be a geometric pattern such as a black circle, a black square, or a black triangle, a hollow shape such as a white circle, or a radial shape such as a plus "+” or an asterisk "*”. .
- a geometric pattern such as a black circle, a black square, or a black triangle
- a hollow shape such as a white circle
- a radial shape such as a plus "+” or an asterisk "*”.
- the change in the fixed pattern may be changed in association with the brightness or color of the observed image. For example, it is possible to change the color of the observed image to the opposite color, reduce the brightness of the observed image by 20%, or the like.
- the fixed pattern By making the color and brightness of the fixed pattern the same as the observed image, or by making the transmittance of the fixed pattern very high, the fixed pattern can be changed to the extent that it is practically invisible.
- the dimension of the interval of the fixed pattern is displayed on the observation screen. It can be displayed like a scale map of a map. The dimensions can be calculated from the shooting conditions (focus, zoom magnification, observation distance, etc.).
- the medical observation device (an example of the surgical microscope 10) is a 3D observation device, and the fixed pattern display is 3D or 2D.
- the fixed pattern display is 3D or 2D.
- the fixed pattern is displayed in 2D, there are cases where the fixed pattern is displayed only on either the left or right, and where the same fixed pattern is displayed on both the left and right.
- the display range of the fixed pattern indicates the range in which the features of the observed image can be detected.
- the operator can detect the features of the observation image by catching the diseased part whose features are to be detected within the display range of the fixed pattern.
- Such medical observation devices are used in surgical operations that require highly accurate procedures.
- the affected area is a living tissue, there are few landmarks that can be used as a reference during treatment. Therefore, the operator needs to perform highly accurate treatment while comparing the amount of movement of the hand with the amount of movement of the surgical instrument or the like in the observed image. It is desirable to have a display that serves as a guideline for affected areas that lack landmarks.
- a fixed pattern is displayed on the observation screen to assist in the treatment of the affected area.
- the fixed pattern as a guideline, it is possible to reduce the burden on the operator when performing highly accurate treatment.
- a mark indicating a position a predetermined distance away from a specific part of the eyeball in a specific direction is used, but the present invention is not limited to this, and instead of the mark, a boundary serving as an index for treatment may be used.
- a boundary is a boundary between a plurality of regions having different display modes (for example, brightness, saturation, etc.). This boundary serves as a position indicator.
- the difference in display mode is a difference in parameters related to display conditions, such as a difference in brightness, a difference in saturation, a difference in color temperature, a difference in color, a difference in contrast, and a difference in sharpness.
- the display mode includes a state in which parameters such as brightness, saturation, color temperature, color, contrast, and sharpness of the operative field image are changed.
- the difference in display mode is generated by changing parameters such as brightness, saturation, color temperature, color, contrast, and sharpness of the operative field image.
- the image processing for generating a boundary between regions with different display modes includes luminance (brightness), contrast (light and shade), saturation, color temperature, sharpness, grayscaling, conversion of a specific color to another Image processing is realized by adjusting parameters such as changing to a specific color, that is, by changing pixel values of an image. Specifically, for example, processing based on calculation formulas (e.g., gain adjustment, offset processing, non-linear operations such as ⁇ processing, etc.), and processing using lookup tables (e.g., changing from a specific color to a specific color). , conversion from a specific brightness value to a specific brightness value to change the contrast, etc.), processing using a spatial filter, etc. can be used alone or in combination.
- the display image generation unit 13c may automatically select and execute processing that makes the boundary stand out on the original surgical field image (original image).
- An example of conversion from a specific luminance value to a specific luminance value is a change in the contrast S-shaped curve.
- image processing for luminance, for example, specific channel changes are implemented. Also, with respect to contrast, for example, a gain is added according to the value of a specific channel. Regarding saturation, for example, a flat gain is applied to a particular channel. For color temperature, a uniform gain that is different for each channel is applied. For grayscaling, for example, certain channel values are changed. As for changing colors, for example, conversion is performed according to pixel values. In image generation, the information pattern to be presented and the method of processing may be changed based on instructions from a user such as an operator.
- the image has color information in the form of channels, for example.
- An RGB image has three channels, Red, Green, and Blue.
- the HSL image has three channels of hue (Hue), saturation (Saturation), and brightness (Lightness/Luminance or Intensity).
- a CMYK image has four channels: cyan, magenta, yellow, and black.
- occlusion does not occur by using a display image that presents a specific position based on a preoperative plan using the boundary of a plurality of regions with different display modes.
- the operator can easily see the operative field image, and can also grasp the above-mentioned specific position, so that the ophthalmic surgery can be performed with high accuracy according to the preoperative plan.
- Various images can be used as the display image for guidance, and a display image including boundaries instead of marks will be described.
- FIG. 14 is a diagram showing an example 10 of a display image including boundaries B1 and K1 instead of the marks A1 and M1 shown in FIG.
- the brightness of the corneal region is lowered, a boundary B1 indicating the corneal limbus is presented, and a region (the corneal region) is defined by an annular position a predetermined distance from the corneal limbus.
- the brightness of the defined region is reduced, and an annular boundary K1 is presented. Since the brightness of the corneal region is lowered in two stages, the individual brightness of the corneal region and its peripheral region (the defined region excluding the corneal region) is different. lower.
- boundaries B1 and K1 are included in the real-time surgical field image to generate a display image.
- This display image is displayed by both or one of the monitor 14 and the presentation unit 55 .
- the boundary K1 indicates a position separated from the corneal limbus by a certain predetermined distance (for example, about 4 mm) in a specific direction from the center of the corneal limbus toward each treatment target point.
- Boundary K1 corresponds to the first position index.
- the boundary B1 corresponds to the second position index.
- occlusion is caused by superimposing marks (eg, marks A1 and M1) on the operative field image so that part of the operative field image is obscured by the marks. can be suppressed by
- FIG. 15 is a diagram showing an example 11 of a display image that does not contain the boundary B1 shown in FIG. 14 but contains the boundary K1. As shown in FIG. 15, for example, only the luminance of a region defined by a position a predetermined distance away from the limbus (the region including the corneal region) is reduced, and a boundary K1 is presented. This boundary K1 is included in the real-time surgical field image, and a display image is generated.
- the process for the area is a process to increase the brightness
- the intensity of the process for increasing the brightness of the area weakens as the distance from the boundary K1 increases
- the luminance of the area decreases as the distance from the boundary K1 increases.
- FIG. 16 is a diagram showing example 12 of the display image including the boundaries B1 and K1 shown in FIG. As shown in FIG. 16, for example, only the brightness of the above peripheral area is reduced and each boundary B1, K1 is presented. These boundaries B1 and K1 are included in the real-time surgical field image to generate a display image.
- FIG. 17 is a diagram showing an example 13 of a display image including each boundary K2 in addition to each boundary B1 and K1 shown in FIG. As shown in FIG. 17, in addition to the brightness reduction shown in FIG. 14, for example, the brightness of the region of the blood vessel running portion is decreased, and each boundary K2 indicating the blood vessel running portion is presented together with the respective boundaries B1 and K1. These boundaries B1, K1, and K2 are included in the real-time surgical field image to generate a display image.
- FIG. 18 is a diagram showing an example 14 of a display image including the boundaries B1, K1 and K2 shown in FIG. As shown in FIG. 18, for example, the brightness of the peripheral area is lowered to present the boundaries B1 and K1, and further the brightness of the blood vessel running area is lowered so that each boundary K2 indicating the running blood vessel is displayed. Presented. These boundaries B1, K1, and K2 are included in the real-time surgical field image to generate a display image.
- FIG. 19 is a diagram showing an example 15 of a display image including boundaries B1, K1 and K3 instead of the marks A1, M1 and M3 shown in FIG.
- each boundary B1, K1 is presented as a perfect circle.
- the brightness of the area inside the boundary B1 that substantially matches the corneal area is reduced to present the boundary B1, and furthermore, an area (defined including the corneal area) defined by an annular position a predetermined distance away from the boundary B1 area) is reduced and a circular boundary K1 is presented.
- the brightness of the band regions indicating the 3 o'clock and 9 o'clock directions based on the preoperative information is lowered, and each boundary K3 is presented.
- a swath is, for example, a line with a constant width and is overlaid on the eye.
- Each boundary B1, K1, K3 is included in the real-time operating field image to generate the display image. Note that the orientation of each boundary K3 (the position in the rotational direction around the eye axis) may be changed according to the movement (orientation) of the eyeball so that it is the same at the start of the surgery and in real time. Boundary K3 corresponds to the second position index.
- FIG. 20 is a diagram showing example 16 of a display image including the boundaries B1, K1, and K3 shown in FIG.
- FIG. 20 for example, only the brightness of the perfect circle band area corresponding to the above peripheral area is reduced, and the perfect circle boundaries B1 and K1 are presented. Furthermore, the brightness of the band regions indicating the 3 o'clock and 9 o'clock directions based on the preoperative information is lowered, and each boundary K3 is presented.
- Each boundary B1, K1, K3 is included in the real-time operating field image to generate the display image.
- FIG. 21 shows a display image including boundaries B1 (partial boundaries B1a) and K1 (partial boundaries K1a) instead of the marks A1 (partial marks A1a) and M1 (partial marks M1a) shown in FIG.
- FIG. 17 is a diagram showing Example 17 of .
- the perfectly circular boundary B1 is partially presented as a plurality of partial boundaries B1a.
- the perfect circular boundary K1 is partially presented as a plurality of partial boundaries K1a.
- Each partial boundary B1a, K1a is arranged at each angle ⁇ , ⁇ , ⁇ .
- each partial boundary K1a and each partial area B1a are presented by lowering the brightness of the connected fan-shaped (substantially triangular) area than the brightness of the above-described substantially trapezoidal area.
- Each partial boundary B1a, K1a is included in the real-time surgical field image to generate a display image.
- the partial boundary K1a corresponds to the first position index.
- FIG. 22 is a diagram showing an example 18 of a display image including each boundary B1 (each partial boundary B1a) and K1 (each partial boundary K1a) shown in FIG. As shown in FIG. 22, for example, the brightness of the perfect circular band area corresponding to the peripheral area is partially lowered, and the partial boundaries B1a and K1a are presented. Each partial boundary B1a, K1a is included in the real-time surgical field image to generate a display image.
- the display image generation unit 13c generates a plurality of regions having different display modes as the first position index indicating the position separated from the specific site by a predetermined distance in the specific direction.
- a display image including boundaries eg, boundaries K1, K1a, etc.
- the operator can grasp a position that is a predetermined distance away in a specific direction from a specific part of the eye, that is, a treatment target position. Therefore, the operator does not need to perform the measurement by himself/herself using a tool such as a caliper in order to grasp the position to be treated, thus simplifying the work process related to ophthalmic surgery.
- boundaries between a plurality of regions with different display modes may be boundaries between regions with different luminances.
- the difference in display mode is generated by changing the brightness of the surgical field image. This makes it possible to reliably suppress occlusion, making it easier for the surgeon to see the image of the surgical field and accurately grasp the surgical target position, so that ophthalmic surgery can be performed more accurately according to the preoperative plan. be able to.
- 3D images can be used in ophthalmic surgery.
- the image for the left eye and the image for the right eye exist so that the sense of depth can be presented as a difference in parallax.
- presenting boundaries for example, boundaries B1, B1a, K1 to K3, K1a, etc.
- boundaries for example, boundaries B1, B1a, K1 to K3, K1a, etc.
- the boundary may be presented only in the image for one eye, or different boundaries may be presented in the image for the left eye and the image for the right eye.
- different boundaries may be presented for the left eye image and the right eye image (a first boundary for the right eye image and a second boundary for the left eye image) and the boundaries may be fused in the brain.
- information that can be presented can be increased by combining various boundaries.
- the same border may be presented to both the left-eye image and the right-eye image.
- depth perception occurs with respect to the boundary, so the position to localize the boundary may be controlled.
- processing may be performed to create depth gaps with respect to boundaries.
- image processing the pixels of the image for the left eye are shifted to the right and the pixels of the image for the right eye are shifted to the left.
- the strength of the image processing for forming the boundary (for example, the degree of modulation, etc.) is small, even if processing is applied only to the image of one eye or different processing is applied to the individual images of both eyes, the marks will not be superimposed. Unlike other methods, flicker does not occur, and parallax does not occur, so there is no competition between the operative field and depth.
- the same processing is applied to the individual images of both eyes, it is possible to localize them to a desired specific depth position by creating a parallax, and the user localizes them to a treatment position according to the guide. can also
- visibility may be improved by periodically weakening the intensity of processing (for example, the degree of modulation, etc.) of a predetermined region.
- the strength of processing is gradually weakened from the initial state, then gradually strengthened, and then returned to the initial state.
- the visibility can be improved by periodically weakening the strength of the processing of the predetermined area (the degree of image change from the original image) in this way.
- the position and size of the boundary may be changed according to changes in eye size.
- Example of schematic configuration of computer> The series of processes described above can be executed by hardware or by software.
- a program that constitutes the software is installed in the computer.
- the computer includes, for example, a computer built into dedicated hardware and a general-purpose personal computer capable of executing various functions by installing various programs.
- FIG. 23 is a diagram showing an example of a schematic configuration of a computer 500 that executes the series of processes described above by a program.
- the computer 500 has a CPU (Central Processing Unit) 510, a ROM (Read Only Memory) 520, and a RAM (Random Access Memory) 530.
- CPU Central Processing Unit
- ROM Read Only Memory
- RAM Random Access Memory
- the CPU 510 , ROM 520 and RAM 530 are interconnected by a bus 540 .
- An input/output interface 550 is also connected to the bus 540 .
- An input section 560 , an output section 570 , a recording section 580 , a communication section 590 and a drive 600 are connected to the input/output interface 550 .
- the input unit 560 is composed of a keyboard, mouse, microphone, imaging device, and the like.
- the output unit 570 is configured with a display, a speaker, and the like.
- the recording unit 580 is composed of a hard disk, a nonvolatile memory, or the like.
- the communication unit 590 is configured by a network interface or the like.
- a drive 600 drives a removable recording medium 610 such as a magnetic disk, optical disk, magneto-optical disk, or semiconductor memory.
- the CPU 510 loads, for example, the program recorded in the recording unit 580 into the RAM 530 via the input/output interface 550 and the bus 540, and executes it. A series of processes are performed.
- a program executed by the computer 500 that is, the CPU 510 can be provided by being recorded on a removable recording medium 610 such as a package medium, for example. Also, the program can be provided via a wired or wireless transmission medium such as a local area network, the Internet, or digital satellite broadcasting.
- the program can be installed in the recording unit 580 via the input/output interface 550 by loading the removable recording medium 610 into the drive 600 . Also, the program can be received by the communication unit 590 and installed in the recording unit 580 via a wired or wireless transmission medium. In addition, the program can be installed in the ROM 520 or the recording unit 580 in advance.
- the program executed by the computer 500 may be a program in which processing is performed in chronological order according to the order described in this specification, or in parallel or at a necessary timing such as when a call is made. It may be a program in which processing is performed in
- a system means a set of multiple components (devices, modules (parts), etc.), and it does not matter whether all the components are in the same housing. Therefore, a plurality of devices housed in separate housings and connected via a network, and a single device housing a plurality of modules in one housing, are both systems. .
- this technology can take the configuration of cloud computing in which one function is shared by multiple devices via a network and processed jointly.
- each step described in the above process flow can be executed by a single device or shared by a plurality of devices.
- one step includes multiple processes
- the multiple processes included in the one step can be executed by one device or shared by multiple devices.
- the present technology can also take the following configuration.
- An image processing device comprising: (2) The first position index is a curved line, an annular line, a line segment, or a dot-like figure indicating a position at the predetermined distance from the specific site, The image processing apparatus according to (1) above.
- the first position indicator is a line with a constant width;
- the first position indicator is translucent;
- the first location indicator is an indicator that can be emphasized or attenuated;
- the first position index is an index in which emphasis and attenuation are repeated,
- the first position index is an index indicated by a display mode of a plurality of dots whose positions are fixed.
- the image processing apparatus according to any one of (1) to (7) above.
- the difference in the display mode is generated by changing the brightness of the operative field image,
- (10) further comprising a preoperative information receiving unit for receiving preoperative information based on the preoperative plan;
- the display image generation unit generates the first position index based on the preoperative information, and generates the display image including the first position index.
- the image processing apparatus according to any one of (1) to (9) above.
- the display image generation unit generates a second position index different from the first position index, and generates the display image including the first position index and the second position index.
- the second position index is an index that indicates the limbus, which is the specific site.
- the image processing apparatus according to (11) above. (13) wherein the second position index is an index indicating a blood vessel running portion in the eye;
- the image processing apparatus according to (11) above. (14)
- the second position index is an index extending in the left-right direction orthogonal to the eye axis of the preoperative image of the eye,
- the second position index is an index extending in a predetermined direction predetermined by an operator, The image processing apparatus according to (11) above.
- the second position index is an index that indicates a surgical site scheduled to be operated after the current surgery or a past surgical site that was operated before the current surgery.
- the image processing apparatus according to (11) above. (17) the second position indicator is translucent;
- the second location indicator is an indicator that can be emphasized or attenuated;
- the second position index is an index where emphasis and attenuation are repeated, The image processing apparatus according to any one of (11) to (17) above. (20) wherein the second position indicator is an indicator indicated by a display mode of a plurality of fixed-position dots;
- the image processing device receiving surgical field images for the patient's eye; detecting a specific part of the eye in the operative field image; generating a display image including a first position index indicating a position a predetermined distance away from the specific part in a specific direction;
- An image processing method comprising: (24) a surgical microscope for obtaining an operative field image of the patient's eye; an image processing device that generates a display image; a display device for displaying the display image; with The image processing device is an image input unit that receives the operative field image; a site detection unit that detects a specific site of the eye in the operative field image; a display image generation unit configured to generate the display image including a first position index indicating a position separated by a predetermined distance in a specific direction from the specific part detected by the part detection unit;
- a surgical microscope system having (25) An image processing method using the image processing apparatus according to any one of (1) to (22) above. (26) A surgical microscope system comprising the image processing device according to any one of (1) to (22)
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Abstract
Description
1.第1の実施形態
1-1.手術顕微鏡システムの概略構成の一例
1-2.手術顕微鏡の概略構成の一例
1-3.画像処理装置の概略構成及び画像処理の一例
1-4.作用・効果
2.第2の実施形態
2-1.画像処理装置の概略構成及び画像処理の一例
2-2.作用・効果
2-3.固定パターン表示機能の一例
3.第3の実施形態
3-1.表示態様の違いによる境界表示機能の一例
3-2.作用・効果
4.コンピュータの概略構成の一例
5.付記
<1-1.手術顕微鏡システムの概略構成の一例>
第1の実施形態に係る手術顕微鏡システム1の概略構成の一例について図1を参照して説明する。図1は、第1の実施形態に係る手術顕微鏡システム1の概略構成の一例を示す図である。
第1の実施形態に係る手術顕微鏡10の概略構成の一例について図2を参照して説明する。図2は、第1の実施形態に係る手術顕微鏡10の概略構成の一例を示す図である。
第1の実施形態に係る画像処理装置13の概略構成及び画像処理の一例について図3を参照して説明する。図3は、第1の実施形態に係る画像処理装置13の概略構成(構成及び処理の流れ)の一例を示す図である。
図4は、第1の実施形態に係る表示画像の例1を示す図である。図4に示すように、角膜輪部の検出結果、すなわち、角膜輪部を示すマークA1が提示され、さらに、角膜輪部から所定距離離れた位置に環状のマークM1が提示される。これらのマークA1、M1が実時間の術野画像に重ねられ、表示画像が生成される。この表示画像は、モニタ14及び提示部55の両方又は一方により表示される。なお、マークM1は、角膜輪部の中心から各施術対象点に向かう特定方向に角膜輪部から一定の所定距離(例えば約4mm)離れた位置を示すものである。マークM1は、第1の位置指標に相当する。また、マークA1は、第2の位置指標に相当する。
以上説明したように、第1の実施形態によれば、画像入力部13aが患者の眼に対する術野画像を受領し、部位検出部の一例である眼球トラッキング部13bが術野画像中の眼の特定部位を検出し、表示画像生成部13cが特定部位から特定方向に所定距離離れた位置を示す第1の位置指標(例えば、マークM1等)を含む表示画像を生成する。これにより、術者は眼の特定部位から特定方向に所定距離離れた位置、すなわち施術対象位置を把握することが可能になる。したがって、術者は、施術対象位置を把握するため、キャリパー等の器具を用いて自ら計測を行う必要が無くなるので、眼科手術に関する作業工程を簡素化することができる。
<2-1.画像処理装置の概略構成及び画像処理の一例>
第2の実施形態に係る画像処理装置13の概略構成及び画像処理の一例について図5を参照して説明する。図5は、第2の実施形態に係る画像処理装置13の概略構成(構成及び処理の流れ)の一例を示す図である。
図6は、第2の実施形態に係る表示画像の例2を示す図である。図6に示すように、図5に示すマークA1及びマークM1に加え、血管走行部を示すマークM2が提示される。マークM2は、一定の幅を有する線であって、血管走行部の位置や範囲を示す線である。マークM2は、第2の位置指標に相当する。
図7は、第2の実施形態に係る表示画像の例3を示す図である。図7に示すように、各マークA1、M1が真円にされて提示される。さらに、術前情報に基づく3時及び9時方向を示すマークM3が提示される。マークM3は、例えば、一定の幅を有する線であり、眼にオーバーレイされる。マークM3の向き(眼軸周りの回転方向の位置)は、術開始時と実時間時とで同じになるよう、眼球の動き(向き)に応じて変更されてもよい。なお、マークM3は、マークM3直下の画像を視認可能にするため、半透明であってもよい。マークM3は、第2の位置指標に相当する。
図8は、第2の実施形態に係る表示画像の例4を示す図である。図8に示すように、真円のマークM1は、図7に比べて広い一定の幅を有する線である。例えば、毛様体扁平部への刺入が可能な位置は、距離的に一定の幅を持つ。つまり、マークM1に幅を持たせて、一定の幅を有するマークM1を提示することで、術者に毛様体扁平部への刺入が可能な位置や範囲を分かりやすくできる。
図9は、第2の実施形態に係る表示画像の例5を示す図である。図9に示すように、真円のマークA1は、複数の部分マークA1aとして部分的に提示される。同様に、真円のマークM1は、複数の部分マークM1aとして部分的に提示される。各部分マークA1a及び各部分マークM1aは、角度α、β、γごとに配置される。部分マークM1aは、第1の位置指標に相当する。
図10は、第2の実施形態に係る表示画像の例6を示す図である。図10に示すように、部分マークM1aは、図9に比べて広い一定の幅を有する線である。このように、ポート設置位置のガイダンス用マークである部分マークM1aに幅を持たせてもよい。これにより、ポート設置位置の範囲が分かりやすくなる。
図11は、第2の実施形態に係る表示画像の例7を示す図である。図11に示すように、部分マークM1aは、図9に比べて広い幅(直径)を有する円形状に形成されている。このように、部分マークM1aの形状としては、幅を有する線以外の形状として、円や多角形、星型等の図形を用いてもよい。これにより、ポート設置位置の範囲が分かりやすくなる。
図12は、第2の実施形態に係る表示画像の例8を示す図である。図12に示すように、今回の手術後に手術される予定の手術部位を示すマークM4が提示される。手術部位は、例えば、緑内障手術部位である。このように、患者が緑内障患者である場合、緑内障手術部位のマークを重畳するようにしてもよい。なお、緑内障手術部位のマークは、濾過胞位置のマークでもよく、房水静脈が多く分布する鼻側の範囲のマークでもよい。予定の手術部位に関する情報(例えば、予定の手術部位の位置や範囲等の情報)は、術前情報に含まれている。マークM4は、第2の位置指標に相当する。
図13は、第2の実施形態に係る表示画像の例9を示す図である。図13に示すように、マークM5は、予め位置が固定された複数のドット(ドットパターン)の表示態様により示される。図13の例では、マークM5は、図4に示すマークM1とほぼ同じ位置を示すように複数のドット(例えば、黒丸)により表現される。各マークA1、A1a、M1、M1a、M2~M4等を術野画像における眼に合わせて動かすのではなく、予め位置を固定したドットの色や透過率等の変更により、各マークA1、A1a、M1、M1a、M2~M4をマークM5として表現するようにしてもよい。これにより、ドットの設置間隔に基づく画面上の距離や向きの計測が可能になる。なお、このような固定パターン表示機能ついて詳しくは後述する。
以上説明したように、第2の実施形態によれば、第1の実施形態と同様に効果を得ることができる。また、術前計画に基づく術前情報を受領する術前情報受領部13dをさらに備え、表示画像生成部13cは、術前情報に基づいて施術対象位置に係る第1の位置指標(例えば、マークM1、M1a、M5等)を生成し、第1の位置指標を含む表示画像を生成する。これにより、術前情報に基づく第1の位置指標を提示することが可能になるので、術者は、正確な施術対象位置を把握することができる。
上記の複数のドットの表示態様(表示画像の例9)によりマークM5を提示し(図13参照)、ランドマークの乏しい患部においても高精度な処置を行いやすくするために、処置の参考にするための固定パターン表示機能を備えた医療用観察システム(手術顕微鏡システム1の一例)が実現される。固定パターン表示機能について特徴を説明する。
術野画像である観察画面にドット等の固定パターンが同じ形状で複数表示される。また、互いの固定パターンの配置は上下左右に規則的な配置である(45度回転した斜めの格子でも可能である)。また、1つ1つの固定パターンの形状と配置は術中に変化しない。また、1つ1つの固定パターンの明るさ、色、観察画面との透過率は個別に変化する。また、1つ1つの固定パターンの明るさ、色、観察画面との透過率は、1つの固定パターンの一部分にのみだけ変化する。
固定パターンの形状が少なくとも2種類になる。2種類の形状とは、例えば、定規の目盛りの長短のようなイメージである。2種類の固定パターンの配置も、互いに上下左右に規則的な配置である。2種類の固定パターン(AとB)の配置は、「ABABAB…」のように交互の配置である。あるいは、「AAAABAAAABA・・・」のように、Aが複数並んでからBが1つ配置されることが繰り返される。
1つ1つの固定パターンの明るさ、色、観察画面との透過率が変化するのは、固定パターンの集合全体ではない。条件に該当する個々の固定パターンが変化する。固定パターンが変化する条件は、次のうちいずれかである。条件(1)は、あらかじめ設定した特徴に該当する患部の特徴を観察画像から抽出し、抽出した特徴部から所定の範囲に存在する場合である。条件(2)は、あらかじめ設定した範囲に存在する場合である。
固定パターンの規則的な配置の間隔はあらかじめ設定される。また、設定において選択できる間隔は2種類以上ある。
固定パターンの規則的な配置の間隔は、観察装置の状態(フォーカス、ズーム、設定、アーム角度)、もしくは被写体の特徴の検出結果(瞳の直径のn等分を1つの間隔にする)によって変えることができる。
固定パターンの規則的な配置の間隔は、観察画面の部分によって異なる。例えば、画面中央部分は間隔が密である部分であり、画面の周辺部分は間隔が租である部分であり、もしくは、その逆で画面の周辺部分は固定パターンが無い部分である。
固定パターンが複数ではなく網目状の1個である。その他の特徴は、これまでの特徴の「個々の固定パターン」が「網目状の1個の固定パターンの部分」に置き換わる点である。
観察画面をPIP/POPで複数同時に表示し、固定パターンを表示する観察画面と表示しない観察画面がある。また、観察画面の画面サイズに応じて固定パターン表示の間隔は変わる。
観察画面をPIP/POPで複数同時に表示し、固定パターンを表示する観察画面と、間隔や形状、明るさ等の変化のいずれかが、それとは異なる固定パターンを表示する観察画面がある。
固定パターン形状は、黒丸や黒四角、黒三角等の幾何学模様であってもよく、また、白丸等の中抜き形状、プラス「+」やアスタリスク「*」等の放射形状であってもよい。固定パターンの変化を部分的に行うことで、黒丸やアスタリスク等であったものが、「+」、「/」、「-」、「|」であるように見せることも可能である。また、固定パターンの変化を観察画像の明るさや色と関連付けて変化させてもよい。例えば、観察画像の色の反対色、観察画像の明るさの20%減等の変化が可能である。
<3-1.表示態様の違いによる境界表示機能の一例>
上記の各実施形態では、眼球の特定部位から特定方向に所定距離離れた位置を示すマークを用いるが、これに限るものではなく、マークに替えて、施術の指標となる境界を用いてもよい。境界は、表示態様(例えば、輝度や彩度等)が異なる複数の領域の境界である。この境界は、位置指標(position indicator)として機能する。なお、表示態様の違いは、表示条件に関するパラメータ等の違いであり、例えば、輝度の違い、彩度の違い、色温度の違い、色の違い、コントラストの違い、シャープネスの違い等である。例えば、表示態様は、術野画像の輝度や彩度、色温度、色、コントラスト、シャープネス等のパラメータが変更された状態を含む。つまり、表示態様の違いは、術野画像の輝度や彩度、色温度、色、コントラスト、シャープネス等のパラメータの変更により生成される。
図14は、図4に示す各マークA1、M1に替えて、各境界B1、K1を含む表示画像の例10を示す図である。図14に示すように、例えば、角膜領域の輝度が下げられ、角膜輪部を示す境界B1が提示され、さらに、角膜輪部から所定距離離れた環状の位置で規定される領域(角膜領域を含む規定領域)の輝度が下げられ、環状の境界K1が提示される。なお、角膜領域の輝度は二段階で下げられるため、角膜領域及びその周辺領域(規定領域から角膜領域を省いた領域)の個々の輝度は異なり、例えば、角膜領域の輝度は周辺領域の輝度より低くなる。これらの境界B1、K1が実時間の術野画像に含まれ、表示画像が生成される。この表示画像は、モニタ14及び提示部55の両方又は一方により表示される。例えば、境界K1は、角膜輪部の中心から各施術対象点に向かう特定方向に角膜輪部から一定の所定距離(例えば約4mm)離れた位置を示すものである。境界K1は、第1の位置指標に相当する。また、境界B1は、第2の位置指標に相当する。
図15は、図14に示す境界B1を含まずに、境界K1を含む表示画像の例11を示す図である。図15に示すように、例えば、角膜輪部から所定距離離れた位置により規定される領域(角膜領域を含む領域)の輝度だけが下げられ、境界K1が提示される。この境界K1が実時間の術野画像に含まれ、表示画像が生成される。
図16は、図14に示す各境界B1、K1を含む表示画像の例12を示す図である。図16に示すように、例えば、上記の周辺領域の輝度だけが下げられ、各境界B1、K1が提示される。これらの境界B1、K1が実時間の術野画像に含まれ、表示画像が生成される。
図17は、図14に示す各境界B1、K1に加え、各境界K2を含む表示画像の例13を示す図である。図17に示すように、図14に示す輝度低下に加え、例えば、血管走行部の領域の輝度が下げられ、血管走行部を示す各境界K2が各境界B1、K1と共に提示される。これらの境界B1、K1、K2が実時間の術野画像に含まれ、表示画像が生成される。
図18は、図17に示す各境界B1、K1、K2を含む表示画像の例14を示す図である。図18に示すように、例えば、上記の周辺領域の輝度が下げられ、各境界B1、K1が提示され、さらに、血管走行部の領域の輝度が下げられ、血管走行部を示す各境界K2が提示される。これらの境界B1、K1、K2が実時間の術野画像に含まれ、表示画像が生成される。
図19は、図7に示す各マークA1、M1、M3に替えて、各境界B1、K1、K3を含む表示画像の例15を示す図である。図19に示すように、各境界B1、K1が真円にされて提示される。例えば、角膜領域に略一致する境界B1の内側の領域の輝度が下げられることで境界B1が提示され、さらに、境界B1から所定距離離れた環状の位置で規定される領域(角膜領域を含む規定領域)の輝度が下げられ、環状の境界K1が提示される。さらに、術前情報に基づく3時及び9時方向を示す帯領域の輝度が下げられ、各境界K3が提示される。帯領域は、例えば、一定の幅を有する線であり、眼にオーバーレイされる。各境界B1、K1、K3が実時間の術野画像に含まれ、表示画像が生成される。なお、各境界K3の向き(眼軸周りの回転方向の位置)は、術開始時と実時間時とで同じになるよう、眼球の動き(向き)に応じて変更されてもよい。境界K3は、第2の位置指標に相当する。
図20は、図19に示す各境界B1、K1、K3を含む表示画像の例16を示す図である。図20に示すように、例えば、上記の周辺領域に対応する真円の帯領域の輝度だけが下げられ、真円の各境界B1、K1が提示される。さらに、術前情報に基づく3時及び9時方向を示す帯領域の輝度が下げられ、各境界K3が提示される。各境界B1、K1、K3が実時間の術野画像に含まれ、表示画像が生成される。
図21は、図9に示す各マークA1(各部分マークA1a)、M1(各部分マークM1a)に替えて、各境界B1(各部分境界B1a)、K1(各部分境界K1a)を含む表示画像の例17を示す図である。図21に示すように、真円の境界B1は、複数の部分境界B1aとして部分的に提示される。同様に、真円の境界K1は、複数の部分境界K1aとして部分的に提示される。各部分境界B1a、K1aは、角度α、β、γごとに配置される。例えば、各角度α、β、γのそれぞれにおいて、部分境界K1aと部分境界B1aとの間の略台形型の領域の輝度が下げられ、さらに、部分境界B1aと真円の境界B1の中心とを繋ぐような扇型(略三角形型)の領域の輝度が前述の略台形型の領域の輝度より下げられることで、各部分境界K1a及び各部分領域B1aが提示される。各部分境界B1a、K1aが実時間の術野画像に含まれ、表示画像が生成される。部分境界K1aは、第1の位置指標に相当する。
図22は、図21に示す各境界B1(各部分境界B1a)、K1(各部分境界K1a)を含む表示画像の例18を示す図である。図22に示すように、例えば、上記の周辺領域に対応する真円の帯領域の輝度が部分的に下げられ、各部分境界B1a、K1aが提示される。各部分境界B1a、K1aが実時間の術野画像に含まれ、表示画像が生成される。
以上説明したように、第3の実施形態によれば、表示画像生成部13cが、特定部位から特定方向に所定距離離れた位置を示す第1の位置指標として、表示態様が異なる複数の領域の境界(例えば、境界K1、K1a等)を含む表示画像を生成する。これにより、術者は眼の特定部位から特定方向に所定距離離れた位置、すなわち施術対象位置を把握することが可能になる。したがって、術者は、施術対象位置を把握するため、キャリパー等の器具を用いて自ら計測を行う必要が無くなるので、眼科手術に関する作業工程を簡素化することができる。さらに、表示態様が異なる複数の領域の境界により、施術対象位置を提示することで、オクルージョンが生じず、術者は術野画像を見やすくなり、また、施術対象位置も確実に把握できるので、術前計画に沿った眼科手術を精度高く行うことができる。
上述した一連の処理は、ハードウェアにより実行することもできるし、ソフトウェアにより実行することもできる。一連の処理をソフトウェアにより実行する場合には、そのソフトウェアを構成するプログラムが、コンピュータにインストールされる。ここで、コンピュータには、専用のハードウェアに組み込まれているコンピュータや、各種のプログラムをインストールすることで、各種の機能を実行することが可能な、例えば汎用のパーソナルコンピュータ等が含まれる。
なお、本技術は以下のような構成も取ることができる。
(1)
患者の眼に対する術野画像を受領する画像入力部と、
前記術野画像中の前記眼の特定部位を検出する部位検出部と、
前記部位検出部により検出された前記特定部位から特定方向に所定距離離れた位置を示す第1の位置指標を含む表示画像を生成する表示画像生成部と、
を備える画像処理装置。
(2)
前記第1の位置指標は、前記特定部位から前記所定距離離れた位置を示す曲線、環状の線、線分又は点状の図形である、
上記(1)に記載の画像処理装置。
(3)
前記第1の位置指標は、一定の幅を有する線である、
上記(1)又は(2)に記載の画像処理装置。
(4)
前記第1の位置指標は、半透明である、
上記(1)から(3)のいずれか一つに記載の画像処理装置。
(5)
前記第1の位置指標は、強調又は減弱可能な指標である、
上記(1)から(4)のいずれか一つに記載の画像処理装置。
(6)
前記第1の位置指標は、強調及び減弱が繰り返される指標である、
上記(1)から(4)のいずれか一つに記載の画像処理装置。
(7)
前記第1の位置指標は、位置が固定された複数のドットの表示態様により示される指標である、
上記(1)から(6)のいずれか一つに記載の画像処理装置。
(8)
前記第1の位置指標は、表示態様が異なる複数の領域の境界である、
上記(1)から(7)のいずれか一つに記載の画像処理装置。
(9)
前記表示態様の違いは、前記術野画像の輝度変更により生成される、
上記(8)に記載の画像処理装置。
(10)
術前計画に基づく術前情報を受領する術前情報受領部をさらに備え、
前記表示画像生成部は、前記術前情報に基づいて前記第1の位置指標を生成し、前記第1の位置指標を含む前記表示画像を生成する、
上記(1)から(9)のいずれか一つに記載の画像処理装置。
(11)
前記表示画像生成部は、前記第1の位置指標と異なる第2の位置指標を生成し、前記第1の位置指標及び前記第2の位置指標を含む前記表示画像を生成する、
上記(1)から(10)のいずれか一つに記載の画像処理装置。
(12)
前記第2の位置指標は、前記特定部位である角膜輪部を示す指標である、
上記(11)に記載の画像処理装置。
(13)
前記第2の位置指標は、前記眼中の血管走行部を示す指標である、
上記(11)に記載の画像処理装置。
(14)
前記第2の位置指標は、前記眼の術前画像の眼軸に直交する左右方向に延びる指標である、
上記(11)に記載の画像処理装置。
(15)
前記第2の位置指標は、術者により予め決められた所定方向に延びる指標である、
上記(11)に記載の画像処理装置。
(16)
前記第2の位置指標は、今回の手術後に手術される予定の手術部位又は今回の手術前に手術された過去の手術部位を示す指標である、
上記(11)に記載の画像処理装置。
(17)
前記第2の位置指標は、半透明である、
上記(11)から(16)のいずれか一つに記載の画像処理装置。
(18)
前記第2の位置指標は、強調又は減弱可能な指標である、
上記(11)から(17)のいずれか一つに記載の画像処理装置。
(19)
前記第2の位置指標は、強調及び減弱が繰り返される指標である、
上記(11)から(17)のいずれか一つに記載の画像処理装置。
(20)
前記第2の位置指標は、位置が固定された複数のドットの表示態様により示される指標である、
上記(11)から(19)のいずれか一つに記載の画像処理装置。
(21)
前記第2の位置指標は、表示態様が異なる複数の領域の境界である、
上記(11)から(20)のいずれか一つに記載の画像処理装置。
(22)
前記表示態様の違いは、前記術野画像の輝度変更により生成される、
上記(21)に記載の画像処理装置。
(23)
画像処理装置が、
患者の眼に対する術野画像を受領し、
前記術野画像中の眼の特定部位を検出し、
前記特定部位から特定方向に所定距離離れた位置を示す第1の位置指標を含む表示画像を生成する、
ことを含む画像処理方法。
(24)
患者の眼に対する術野画像を得る手術顕微鏡と、
表示画像を生成する画像処理装置と、
前記表示画像を表示する表示装置と、
を備え、
前記画像処理装置は、
前記術野画像を受領する画像入力部と、
前記術野画像中の前記眼の特定部位を検出する部位検出部と、
前記部位検出部により検出された前記特定部位から特定方向に所定距離離れた位置を示す第1の位置指標を含む前記表示画像を生成する表示画像生成部と、
を有する手術顕微鏡システム。
(25)
上記(1)から(22)のいずれか一つに記載の画像処理装置を用いる画像処理方法。
(26)
上記(1)から(22)のいずれか一つに記載の画像処理装置を備える手術顕微鏡システム。
10 手術顕微鏡
11 対物レンズ
12 接眼レンズ
13 画像処理装置
13A 制御部
13a 画像入力部
13b 眼球トラッキング部(眼球追跡部)
13c 表示画像生成部
13d 術前情報受領部
14 モニタ
20 患者用ベッド
51 光源
52 観察光学系
52a ハーフミラー
53 正面画像撮影部
54 断層画像撮影部
55 提示部
56 インターフェース部
57 スピーカ
500 コンピュータ
510 CPU
520 ROM
530 RAM
540 バス
550 入出力インターフェース
560 入力部
570 出力部
580 記録部
590 通信部
600 ドライブ
610 リムーバブル記録媒体
Claims (20)
- 患者の眼に対する術野画像を受領する画像入力部と、
前記術野画像中の前記眼の特定部位を検出する部位検出部と、
前記部位検出部により検出された前記特定部位から特定方向に所定距離離れた位置を示す第1の位置指標を含む表示画像を生成する表示画像生成部と、
を備える画像処理装置。 - 前記第1の位置指標は、前記特定部位から前記所定距離離れた位置を示す曲線、環状の線、線分又は点状の図形である、
請求項1に記載の画像処理装置。 - 前記第1の位置指標は、一定の幅を有する線である、
請求項1に記載の画像処理装置。 - 前記第1の位置指標は、半透明である、
請求項1に記載の画像処理装置。 - 前記第1の位置指標は、強調又は減弱可能な指標である、
請求項1に記載の画像処理装置。 - 前記第1の位置指標は、強調及び減弱が繰り返される指標である、
請求項1に記載の画像処理装置。 - 前記第1の位置指標は、位置が固定された複数のドットの表示態様により示される指標である、
請求項1に記載の画像処理装置。 - 前記第1の位置指標は、表示態様が異なる複数の領域の境界である、
請求項1に記載の画像処理装置。 - 前記表示態様の違いは、前記術野画像の輝度変更により生成される、
請求項8に記載の画像処理装置。 - 術前計画に基づく術前情報を受領する術前情報受領部をさらに備え、
前記表示画像生成部は、前記術前情報に基づいて前記第1の位置指標を生成し、前記第1の位置指標を含む前記表示画像を生成する、
請求項1に記載の画像処理装置。 - 前記表示画像生成部は、前記第1の位置指標と異なる第2の位置指標を生成し、前記第1の位置指標及び前記第2の位置指標を含む前記表示画像を生成する、
請求項1に記載の画像処理装置。 - 前記第2の位置指標は、前記特定部位である角膜輪部を示す指標である、
請求項11に記載の画像処理装置。 - 前記第2の位置指標は、前記眼中の血管走行部を示す指標である、
請求項11に記載の画像処理装置。 - 前記第2の位置指標は、前記眼の術前画像の眼軸に直交する左右方向に延びる指標である、
請求項11に記載の画像処理装置。 - 前記第2の位置指標は、術者により予め決められた所定方向に延びる指標である、
請求項11に記載の画像処理装置。 - 前記第2の位置指標は、今回の手術後に手術される予定の手術部位又は今回の手術前に手術された過去の手術部位を示す指標である、
請求項11に記載の画像処理装置。 - 前記第2の位置指標は、表示態様が異なる複数の領域の境界である、
請求項11に記載の画像処理装置。 - 前記表示態様の違いは、前記術野画像の輝度変更により生成される、
請求項17に記載の画像処理装置。 - 画像処理装置が、
患者の眼に対する術野画像を受領し、
前記術野画像中の前記眼の特定部位を検出し、
前記特定部位から特定方向に所定距離離れた位置を示す第1の位置指標を含む表示画像を生成する、
ことを含む画像処理方法。 - 患者の眼に対する術野画像を得る手術顕微鏡と、
表示画像を生成する画像処理装置と、
前記表示画像を表示する表示装置と、
を備え、
前記画像処理装置は、
前記術野画像を受領する画像入力部と、
前記術野画像中の前記眼の特定部位を検出する部位検出部と、
前記部位検出部により検出された前記特定部位から特定方向に所定距離離れた位置を示す第1の位置指標を含む前記表示画像を生成する表示画像生成部と、
を有する手術顕微鏡システム。
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JP2011200667A (ja) | 2004-10-26 | 2011-10-13 | Carl Zeiss Surgical Gmbh | 手術用顕微鏡検査システム |
US20150077528A1 (en) * | 2013-09-18 | 2015-03-19 | Nanophthalmos, Llc | Surgical navigation system and method |
WO2020026950A1 (ja) * | 2018-08-03 | 2020-02-06 | 株式会社ニデック | 眼科用レーザ治療装置 |
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JP2011200667A (ja) | 2004-10-26 | 2011-10-13 | Carl Zeiss Surgical Gmbh | 手術用顕微鏡検査システム |
US20150077528A1 (en) * | 2013-09-18 | 2015-03-19 | Nanophthalmos, Llc | Surgical navigation system and method |
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