JP2002315721A - Stereoscopic system for enucleation of cancer tissue - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a stereoscopic system for enucleation of a cancer tissue enabling complete removal of the cancer tissue by increasing discriminability, using a fluorescent dye of 5-ALA. SOLUTION: An identification image of cancer tissue by a fluorescent dye using 5-ALA is synthesized into a real image by a high-definition camera of a surgical microscope 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stereoscopic system for surgical removal of cancer tissue.

[0002]

2. Description of the Related Art "Cancer" such as malignant tumors is obtained by MRI / CT.
Although it can be diagnosed by prior examination, etc., in the field of view of a microscope or endoscope in actual surgery, cancer tissue can not be clearly distinguished visually and there is movement of tissue due to surgical operation, so cancer tissue identification Have difficulty. Therefore, cancer tissue cannot be completely removed by one operation, and re-operation may be required.

[0003] Therefore, 5-ALA which has already been announced
It is conceivable that the cancer tissue is accurately identified by color by fluorescent staining using (5-Aminolevulimic Acid), and the state of the cancer tissue during the operation is sequentially and accurately grasped.

[0004]

However, observation of cancer tissue by fluorescence staining using 5-ALA as described above has been performed using a normal television monitor, and the image information has been reduced due to the low resolution. Due to deterioration of the color reproducibility of the image, etc., the original color distinction due to the use of 5-ALA fluorescent staining is not sufficiently exhibited. A proposal for a stereoscopic vision system is awaited.

[0005] The present invention has been made in view of such circumstances, and it is intended to enhance the color differentiation by using 5-ALA fluorescent staining to remove cancer tissue completely. A stereoscopic vision system for surgery is provided.

[0006]

In order to achieve the above object, a stereoscopic system for cancer tissue resection according to the present invention comprises a microscope or an endoscope, and left and right images from the microscope or the endoscope. Two high-definition cameras that shoot three-dimensionally,
A stereoscopic imaging system having a sensor camera that captures fluorescence staining of cancer tissue that has absorbed 5-ALA from the same field of view as a microscope or endoscope, and a switching unit that switches between one of the high-definition cameras and the sensor camera, A sensor image synthesis system that holds the image of the sensor camera and synthesizes it with the image of the high-definition camera, and a stereoscopic image display system that can display the image of the high-definition camera, the image of the sensor camera, and the image of the high-definition camera that combines the image of the sensor camera And

According to the present invention, an identification image of a cancer tissue by fluorescent staining using 5-ALA is synthesized with a real image by a high-definition camera of a microscope or an endoscope to confirm the image. The nature increases. Therefore, the cancer tissue during the operation can be sequentially and accurately grasped, and it is possible to reliably remove only the cancer tissue by one operation without damaging the normal tissue.

[0008] As described above, by synthesizing and displaying an image of a cancer tissue using 5-ALA during the operation as accurate navigation information of a surgical site, it becomes possible to completely remove the cancer tissue. It can improve sex and safety. It also minimizes physical damage to the patient,
Improving the prognosis of surgery and suppressing postoperative complications can promptly recover patients, shortening the length of hospital stay and consequently reducing medical costs.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings.

The stereoscopic vision system for cancer tissue removal surgery according to this embodiment includes a stereoscopic imaging system A, a sensor video synthesis system B, and a stereoscopic video display system C.

The stereoscopic imaging system A includes an operating microscope 1, two high-vision cameras 2, 3, a sensor camera 4,
It comprises two optical adapters 5 and 6 and a switch 7. The operation microscope 1 is a binocular microscope used in operations such as neurosurgery that requires fine and accurate treatment.

The two optical adapters 5 and 6 are respectively provided in the optical paths of two side endoscopes provided on the left and right sides of the operation microscope 1. A high-definition camera 2 for the left eye (L) and a high-definition camera 3 for the right eye (R) are attached via the two optical adapters 5 and 6.
The two high-definition cameras 2 and 3 have, for example, an aspect ratio V:
H is for 9:16, and the left and right eye images from the connected optical adapters 5 and 6 are V:
An image can be taken as one video signal in which two images of H = 9: 8 are joined.

The sensor camera 4 is connected to a right-eye optical adapter 5 via a switch 7. The sensor camera 4 irradiates the focal position of the operation microscope 1 with excitation light having a specific wavelength, and emits 5-AL within its field of view.
A fluorescent image of the cancer tissue that has absorbed A is photographed through a filter. The photographing by the sensor camera 4 is sequentially performed by switching the angle of the movable mirror 8 in the switch 7.

The three-dimensional image display system C is provided with a high-vision liquid crystal monitor 9 having an R / L high-vision camera three-dimensional image synthesizing circuit board. By performing display in accordance with the transmitted signal on the high-definition liquid crystal monitor 9, the parallax of each of the left and right is divided into a screen area obtained by dividing a horizontally long display screen (V: H = 9: 16) into two right and left parts. The held image is formed.

A computer 1 is provided in the sensor image synthesizing system B.
0, equipped with a fluorescent image processing circuit / software for the sensor camera 4, a fluorescent image synthesizing circuit, and a sequential control system. The fluorescent image from the sensor camera 4 is held, and a high-definition camera is used when necessary. It can be combined with video signals from two or three. The computer 10 also provides medical information 11 such as CT and MRI images, progress images, CG images, and ultrasonic guidance images by an ultrasonic navigator.
Can be combined with video signals from the high-vision cameras 2 and 3.

Since the stereoscopic vision system for surgical removal of cancer tissue according to this embodiment has the above configuration, the sensor camera 4 sequentially captures three-dimensional images captured by the high-vision cameras 2 and 3. The synthesized video can be synthesized as a stereoscopic video and displayed on the high-vision liquid crystal monitor 9.

The method of stereoscopic viewing of the high-vision liquid crystal monitor 9 includes a method using the naked eye without using an auxiliary device and a method using an observation auxiliary device called a “stereoscopic viewer”. There are a parallel method and an intersection method in stereoscopic vision with naked eyes, and in the parallel method, an image for the left eye is arranged on the left side, an image for the right eye is arranged on the right side,
Conversely, in the intersection method, the image for the left eye is arranged on the right side, and the image for the right eye is arranged on the left side. As a method for realizing this, a lens or a mirror provided in the optical adapters 5 and 6 is used.
Alternatively, there are mechanical methods that rotate the high-vision cameras 2 and 3 themselves, and electronic methods that use a frame memory and a video synthesizing device.

In any case, since the identification image of the cancer tissue by the fluorescent staining using 5-ALA can be synthesized and confirmed with the real image of the operating microscope 1, the color discrimination of the cancer tissue is improved. In addition, the cancer tissue during the operation can be sequentially and accurately grasped. Therefore, it is possible to reliably remove only the cancer tissue in one operation without damaging the normal tissue.

Furthermore, if necessary, medical information 11 such as CT and MRI images, progress images, CG images, and ultrasonic guidance images by an ultrasonic navigator can be synthesized, so that more efficient surgery can be performed with a base invasion. Operation time is reduced.

Further, since the observation is performed by displaying the image on the high-definition liquid crystal monitor 9 instead of observing the eyepiece of the operating microscope 1 and observing it, the main surgeon can perform the operation in a comfortable and comfortable posture. Also, the physical burden on the main operator can be reduced.

In the above embodiment, the surgical microscope 1 has been described as an example. However, the present invention can be applied to an endoscope requiring stereoscopic vision. The high-vision liquid crystal monitor 9 may be replaced with a high-vision CRT monitor. Further, the sensor camera 4 and the switching device 7 do not need to be separate from the one high-definition camera 3, and may be integrated inside the high-definition camera 3.

[0022]

According to the present invention, an identification image of a cancer tissue by fluorescent staining using 5-ALA is synthesized with a real image by a high-definition camera of a microscope or an endoscope to confirm the image. Color distinction is enhanced. Therefore, the cancer tissue during the operation can be sequentially and accurately grasped, and it is possible to reliably remove only the cancer tissue by one operation without damaging the normal tissue.

[Brief description of the drawings]

FIG. 1 is a view showing a stereoscopic system for cancer tissue resection surgery according to an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Surgical microscope 2, 3 High-definition camera 4 Sensor camera 5, 6 Optical adapter 7 Switch 8 Movable mirror (switching means) 9 High-definition liquid crystal monitor 10 Computer 11 Medical information A Stereoscopic imaging system B Sensor image synthesis system C Stereoscopic image display system

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme court ゛ (Reference) G02B 21/36 G02B 21/36 (72) Inventor Koichi Yamaguchi 70-2 Negishi Asahidai, Naka-ku, Yokohama-shi, Kanagawa 72) Inventor Ichiro Sakuma 719 Kawashima-cho, Hodogaya-ku, Yokohama 24, Japan

Claims (3)

[Claims] 1. A microscope or an endoscope, two high-definition cameras for stereoscopically photographing left and right images from the microscope or the endoscope, and 5-A from the same field of view as the microscope or the endoscope.
A three-dimensional imaging system having a sensor camera for photographing fluorescent staining of LA-absorbed cancer tissue, a switching means for switching between one of the high-definition cameras and the sensor camera, and an image of the high-definition camera holding the image of the sensor camera A stereoscopic image for surgery to remove cancer tissue, consisting of a sensor image synthesizing system that synthesizes, and a stereoscopic image display system that can display the image of the high-definition camera, the image of the sensor camera, and the image of the high-definition camera that combines the image of the sensor camera. Vision system. 2. The stereoscopic system for cancer tissue resection surgery according to claim 1, wherein the switching means is provided in an adapter for attaching one of the high-definition camera and the sensor camera to a microscope or an endoscope. A stereoscopic system for surgical removal of cancer tissue, which is a mirror. 3. The stereoscopic system for cancer tissue resection surgery according to claim 1, wherein the sensor image synthesizing system includes medical information related to a stereoscopic image displayed on the stereoscopic image display system. A stereoscopic system for surgical removal of cancer tissue, which also combines images.