JPS5969023A - Endoscope diagnostic system - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] The present invention relates to an endoscopic diagnostic system.

Generally, when examining a patient using an endoscope, the disease name is often determined by comparison with past diagnosed cases. By the way, in cases such as this, where there is no past diagnosis (Michitomi has made a comeback), or when an inexperienced doctor examines the patient, it is not possible to accurately perform a comparative diagnosis. For this reason, calibration is often unnecessary when determining the name of a disease.

The present invention has been made in order to cope with the above-mentioned 'fc situation, and an object of the present invention is to provide an endoscopic diagnosis system that can instruct an appropriate examination according to the results of an endoscopic examination.

Hereinafter, a practical example of the endoscopic diagnosis system according to the present invention will be explained with reference to the drawings. 1 is a block diagram showing its overall configuration. A television camera head 12 is connected to the eyepiece of the endoscope 10, and its output signal is sent to a camera control unit (hereinafter referred to as ccU) 14. A light source unit 16 is also connected to the endoscope 10.The camera head 12 uses CCVW as an image sensor, has pixels arranged in a two-dimensional matrix, and has a power of 2-
For imaging purposes. The output signal of the camera head 12 is CCUI
4 allows color and iMI adjustment 6. The output signal of the CCUI4 is an interface 18 having functions such as A/D conversion.
It is provided to the CPU 20 via. ROM,? 2,
Large memory 24, CRT monitor 26, keyboard 28
．． The 2-item pen 3o connects to the CPU 2 via the system path 32.
Connected to 0. The ROM 22 is used for one series of distance measurements. The Daigakusha memory 24 contains a large number of patient data (1).
It is used to store information, and consists of magnetic disk memory, etc.

Figure 2 is a detailed diagram of the endoscope 10 and the light source unit 16. Endoscope 10 has an image guide 36 and a light guide 38. A mask 4θ having a mesh pattern is disposed at the tip of the light guide 38, and the north end of the n1 light guide 38 is guided to the light source unit 16. The light source unit 16 has two types of light sources: an illumination lamp 42 and a distance measuring laser scanning device 44, and the light from both is incident on the light guide 38 via a half mirror 46. . As a result, from the tip of the light guide 38,
Diffused light for illumination as shown by a dashed line in FIG. 2 and spot light as shown by a broken line are emitted.

The entire operation of this embodiment will be explained. The main point of operation is to first create an individual data table consisting of symptoms and disease name for each patient and file it in the human body memory 24, and then to create a table of symptoms for a tentative diagnosis during endoscopic examination. The name of the disease can be determined by comparing it with all the data stored in MOIJ24. If the disease name cannot be determined based only on the symptoms obtained through endoscopic examination, the most necessary test items are specified to determine the most likely disease name. Thereafter, the test results are added to the individual data table and the comparison described above is made.

Here, the individual data table is roughly divided into medical record data, endoscopy data, and examination data. Medical record data means name, gender, age, date of diagnosis, name of disease, etc. Endoscopic data refers to the site, shape, size, unevenness, color, etc. of the affected area. Other test data means the results of biopsy, dye reaction, contrast observation, fluorescence observation, stress test, etc.

Medical record data, excluding the disease name, is manually entered prior to the examination. Endoscopic data is entered during an endoscopic examination. In endoscopic examination, the light source in the body cavity that is focused on the objective lens is transmitted to the resting place via the image guide 36, and δ
Furthermore, the image is photographed and photographed by the television camera head 12.

Output II of television camera head 12! The 111th attack is delivered to the CRT monitor 26, and the first urine in the body cavity is displayed on the CRT monitor 26. This CRT monitor 26
Above IL! ! Endoscopic data, such as the dimensions of the affected area, can be obtained based on the 11 measurements. Here, although the image on the monitor 26 is often reduced in size compared to the real image, this multiplication t@ is determined according to the distance between the objective end of the endoscope and the body cavity wall. Therefore,
If the distance to the subject is not known, the dimensions of the affected area cannot be determined.

So, Figure 3? The distance measuring operation will be explained with reference to this figure. As mentioned above, as the distance to the subject increases,
The actual size reflected on the f-plane becomes larger. On the other hand, a spot light for distance measurement is emitted from the light guide 38 at a predetermined angle (in this case, along the two-light guide 38) within the field of view. Therefore, the spot light irradiation position in the astral plane varies depending on the distance to the subject, and distance measurement is possible by detecting all of these irradiation positions. Specifically, if the spot light is irradiated on the diameter of the field of view (usually one circle),
It is assumed that the distances a and a' between one end of this diameter and the irradiation position are proportional to the distance. The intervals a , a / are detected in the image sensor in the television camera head 12 by determining which pixel in a line of CCD arrays on the diameter of the field of view detects the entire irradiation position. Of course, the distance appearing in this interval is determined in advance by taking into account the various conditions of the optical system, etc., and is recorded in the ROM 22. CPU2
0 is normal II! A threshold value is set lower than the level of the tl image signal and lower than the level of the reflected light from the laser source, and the output image source signal of a predetermined row of CCD arrays is compared with this threshold value, and I[! The interval ai is calculated at the timing when the level of the il image number reaches the threshold once or more. Once the interval a is determined, the ROM, ? ,? Distance information can be read from.

At this point, when the length of the affected area on the screen is manually input using the light pen 30, the actual length is determined according to this input information and distance information. Similarly, the data regarding the 7th capital can be entered by pointing the area on the screen with the light pen 30.

Data regarding the site and shape of the affected area are input using the keyboard 28.

The color of the affected area is determined by specifying the affected area using the light pen 30, and the R and G of the image signals of that area are determined.

It is determined as the ratio of the B three primary color components.

The unevenness of the affected area can also be seen by observing it with the inner eye,
In order to detect more objectively, in this embodiment, a mesh pattern is projected onto the entire subject. If the mesh pattern on the object is curved outward as shown in FIG. 4, the object is convex as shown in FIG. Conversely,
If the mesh pattern on the object is curved inward as shown in FIG. 6, the object is concave as shown in FIG.

In this way, in this Example 2, jl! inside the body cavity obtained using an endoscope and imaging equipment. By converting all II image information into numerical values, it is possible to create a chart for each individual patient.

The overall operation t1 of this embodiment will be explained with reference to the entire flowchart shown in FIG. Here, it is assumed that the large-capacity memory 24 stores a large number of individual data items in the format defined in this embodiment. First, as shown in step 102, an internal guide is inserted into a patient's body cavity and an examination is performed. At step 104, endoscopic data is entered manually as described above. At this point, personal data is created along with the medical record data that has already been input. At this stage, the patient has only received an internal inkstone examination.
Other inspection data are in a vain state. Once all endoscopic data has been input, this lower data table is compared with all data tables stored in mass memory 24 in step 106 . Specifically, individual data t<' having the same endoscopic data as the patient's endoscopic data is extracted. The determination of whether they are the same or not is made by taking into consideration data such as age and gender. Additionally, the extracted data are classified by disease name.

Here, most of the data cloth (this specific gravity is the keyboard 28
If the disease names are the same, the entire disease name of the person in question will be determined as that disease name. Stella 7' 10 B,
It is determined whether the disease name has been determined. If the disease name has not been determined, in step 110, the most characteristic test item is designated in the data table that has the most disease names among the extracted data tables. That is, in such a case, the disease name cannot be determined due to insufficient data, and all tests most necessary for determining the disease name O are specified. This designated inspection item is taught on the CRT monitor 26. for example,
Assume that there are 100 past patients who have the same endoscopic data as the patient in question, and 60 of them had bulges, 30 had polyps, and 10 had other problems.

Then, among the data tables for the 60 people who died, it is determined which test data is the most common among the calibration data for that pond, and the test that has this data in common is instructed to be performed next.

This instructed 7'C side eating is executed in step 112,
In step 114, this storage data is added to the personal data. In this mirror, step 106 is executed again and the populated data table is compared with the data table in mass memory 24 as well as the pre-cancerous data table. Test items are ordered one after another until the name of the disease is determined. When it is determined in step 108 that the disease name has been determined, the disease name is manually entered into the individual data in step 116. Individual data and a table in which the disease name is input are stored in the large capacity memory 24.

As explained above, according to this embodiment, the disease name of the patient undergoing the endoscopic examination is determined by comparing the image data that was superior in the endoscopic examination with the data of a large number of past patients. Or, if the decision is not made, all other tests necessary to make the decision can be ordered. Therefore, since tests are performed starting from the most necessary items to determine the disease name, there are no unnecessary tests, and the patient's distress does not increase.

The present invention is not limited to the above-described embodiments, and can be modified in many ways, and the data introduction method and data input method can be adapted to the present invention. Further, the format of the data table stored in the Otani mouse memory 24 is not an individual data table, but may be a standard symptom list data table for each disease name. Standard symptoms are the statistically most common symptoms. The gist of this invention is
When diagnosing a patient, the system determines the name of the disease by comparing it with past data, and then stores all the patient's data as past data.

As described above, the present invention provides an endoscopic diagnosis system in which a monk's name is automatically determined.

[Brief explanation of drawings]

FIG. 1 is a block diagram of an embodiment of the endoscopic diagnostic system according to the present invention, FIG. 2 shows the endoscope and light source unit in FIG. 1, and FIG. 3 shows the operation of this embodiment. Figures 4 to 7 are diagrams for explaining the method for identifying irregularities in the affected area, and Figure 8 is a flowchart showing the operation of this embodiment. 10... e;1. Parent, 1st...television camera head, 20...CPU, 24...large memory, 26...CRT monitor, 28...keyboard, 30...light pen. Applicant's representative: Patent attorney Takehiko Suzu, Figure 3, Figure 4, Figure 6, Figure 5, Figure 7, Figure 8, 2-43-2 Hatagaya, Shibuya-ku, Tokyo, Japan. 77th Inventor, Lymphus Optical Industry Co., Ltd. Hiroharu Taniyo, 2-43-2 Hatagaya, Shibuya-ku, Tokyo, Inc., Lymphus Optical Industry Co., Ltd. Polymerization Author: Kawakira Nakamura, 2-43-2 Hatagaya, Shibuya-ku, Tokyo, Japan, Lymphus Optical Industry Co., Ltd., Inventor: Person: Motoshi Ogawa, 2-43-2 Hatagaya, Shibuya-ku, Tokyo (rho) Inventor: Taketo Kawasaki, 2-43-2 Hatagaya, Shibuya-ku, Tokyo (ρ) Inventor: Taketo Kawasaki, 2-43-2 Hatagaya, Shibuya-ku, Tokyo Internal procedure amendments Book January 1982? 1st Director of the Japan Patent Office Kazuo Wakasugi 1 Case Indication Special Class 1 1980-180853 2 Title of the invention Circular Acute Diagnosis System 3 Relationship with the Oil Stopping Swamp Incident Patent Applicant (037) Olin・9th Optical Industry Co., Ltd. 4, Agent Address: 17th Mori Building, 1-26-5 Toranomon, Minato-ku, Tokyo 105 Phone: 03 (502) 3181 (
Main representative) 6. Ili + 7, marked application, specification 7, contents of amendment (11 Corrected as per the applicant's column of the application in the attached sheet. (2) Engraving of the specification (no change in contents).

Claims (1)

[Claims] Data on symptoms and disease names for a large number of patients? and a means for instructing tests necessary to determine the most likely disease name of the patient based on the patient's symptoms during the internal examination and the entire data in the previous i-pi memory hand #9. Endoscopic diagnostic system.