JPS6340527A - Medical image control system - Google Patents

Abstract

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

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention is an image management system and system for recording and accumulating data of medical images such as radiation images on a storage medium such as an optical disk. It is related to.

(Prior Art) For example, in medical institutions such as hospitals, many medical images have been used for medical treatment or research. Most of these medical images are radiographic images, but recently, C-K images and MR images have also been increasingly used.

By the way, it is necessary to keep such medical images in order to know the changes in the patient's injury and disease, and the law requires that they be kept for a specified period of time. will increase day by day. Conventionally, medical image calls have been stored as hard copies in the form of "male" files, so securing storage space, management work, and search work have become a major burden for each hospital.

Recently, medical images have been stored in the form of image data on optical discs.
There have been 112 proposals for so-called electronic noise rings, which are recorded and stored in a searchable 11L on a recording medium such as a magnetic disk. In this way, medical images are recorded and stored on a recording medium (
(filing), you can save space by storing images.
Labor saving is achieved, and image retrieval work becomes easier and faster. In addition, in the case where the image of the opening and one building is stored as described in -V, the present applicant has already published Unexamined Patent Publication No. FM455-12
No. 429, No. 56-11395, etc., proposed a method for recording image information using the accumulation 1 no 1 phosphor sheet i! A + live system can be suitably used. In other words, in this IIIfJJ line image information recording and reproducing system, the image information recorded on the sea I- of the storage f1 fluorophore (photon t'1 fluorophore) is directly Since it is read in the form of an electrical signal, there is no need to take the trouble of reading a hard copy of a medical image to form an electrical image signal, which is extremely convenient.

(Problems that the invention attempts to solve) By the way, as mentioned above, 4r medical iF! In hospitals, etc. equipped with II image management systems, especially in hospitals of the JJ-1 model, image data supplying devices (i.e., the above storage + 1 phosphor sheets 1 to 1 In many cases, multiple RQ devices are installed, such as devices that read radiographic image information from the radio and output electrical image signals, etc.
) In combination with an image output device for hand-to-hand gestures, an image output device that outputs images searched in a medical image management system installed in each hospital, for example, on each floor, etc. It would be very convenient if it were possible to re-output (that is, image output from filing data) using any of these methods. Specifically, the radiation images output from the radiation image information recording and reproducing system installed in Building A of Example A Hospital and recorded and accumulated in the medical image management system are transferred to the CT equipment installed in Building F3. This makes it possible to re-output the image using the image output device of J-31, and eliminates the line <f ujl to take the 04-line image from Building 8 to Building A of J-31.

However, in general, the above radiation OJ ray image information Rr + recording/reproduction 11
-If there are different types of equipment such as a system and a CT device, even if it is a 1rη type of equipment, the model will be cheap/=g
If so, the format of the image data I~ and the format 1~/)'N of the image retrieval data (dance information and patient information) recorded and stored in the image tube system are different, so simply Connect the data supply device to the medical image management system (16). If a means is provided, it is possible to meet the above requirements (although in that case, if there is an image data supply device), the data conversion/matte conversion program can be implemented.
One gram requires two types of HL27. Naturally, data format conversion means equipped with such a large number of conversion programs are extremely expensive.

Therefore, the present invention makes it possible to send image data supplied from one image data supply device and filed, such as the previous one, to an image horn device for another image data supply device and output the image. Furthermore, the purpose is to provide a medical image management system that can be formed at low cost.

(Means for Solving the Problems) The medical image management system of the present invention is connected to a plurality of image data supply devices, as described in the previous section, and retrieves image data from each of the image data supply devices. In a medical image management system that receives the supply of image data and records and stores these data on a recording medium, the data supplied from each image data supply device is stored in a format unique to each of these devices. In addition to converting 11 letters into 11 letters for recording on the recording medium, a data format converting means for inversely converting this conversion was also installed. It is something.

(Function) If the data format conversion means described above is provided, the image data and image search data input from the image data supply device to the medical image management system can be recorded and stored on the recording medium in a certain format 1. will be done.

When outputting an image, by selecting an inverse conversion program, you can select which image data supply device to use.
Images can also be output using an image output device. When n image data supply devices are connected to a medical image management system, the image data supply device's own data
It is sufficient to prepare a total of 2n programs for converting from to a common format and reverse conversion programs. Therefore n
If ≧4, the number of required conversion programs is smaller than in the case where data format conversion is performed between each image data supply device.

(Example) Hereinafter, the present invention will be described in detail based on an example shown in the drawings.

FIG. 1 shows a medical image management system according to an embodiment of the present invention. This medical image management system 50 is basically a system Ili control Vijl! il etc., an optical disk device 52, etc., and an operating section 61 consisting of a keyboard 61A and a display device 6111 such as CR1-. The medical image management system 50 is connected to the image processing device 30A. The image processing device 30A receives image data A1 from the fII ray image information recording and reading device 10A, which is an example of an image data supply device, and performs predetermined image processing on the data A1 to output the image data to the image output device 70.
Send to A.

-L nlj radiation θ radiation contraction 1 line JP-A-61-29834, JP-A-61-94035, etc., in which the stimulable phosphor sheet 11 is circulated and conveyed in the circulation passage 12 by t ('r). And facing podium 13 J
By irradiating the stimulable phosphor sheet 11 stopped at a position with radiation 15 emitted from a radiation source 14, a transmitted radiation image of a subject (patient) 16 is stored and recorded on the sheet 11. The stimulable phosphor sheet 11 on which the radiation image has been recorded is two-dimensionally scanned by a laser beam 18 emitted from a laser light source 17 and deflected by a light deflector 19 in an image reading section. be done. In this way, stimulated luminescence light carrying radiation image information is emitted from the portion of the sheet 11 irradiated with the laser light 18 as excitation light, and this stimulated luminescence light is transmitted to the photomultiplier via the condenser 20. The light falls on a photodetector 21 such as pliers and is detected photoelectrically.

The output of this photodetector 21 is amplified and A/1
] The radiation image information recording/reading device 1 is converted into digital image data A1 carrying a radiation image of the subject 16.
Output from 0A. The stimulable phosphor sheet 11 on which the image has been read is then sent to the erasing section 22, where it is irradiated with erasing light and is in a state where 64-line image information can be recorded again. It is said that

In addition, an ID terminal 25 is connected to the one-line image information recording/reading device 10A, and the information written on the patient 16's 1F' card 26 ("
Information such as the patient's name, gender, and date of birth (hereinafter referred to as patient information) is read, and h (various conditions regarding radiation awards (hereinafter referred to as award information), such as image number, award Year and month [1, region to be imaged, size to be imaged,
Information such as reading sensitivity is input.

This patient information A2 and image information A3 are transmitted to the image processing device 30A together with the image data A1.

In the image processing device 30A, digital image data A
For example, 20 or more types of gradation processing and 10 or more types of frequency processing can be performed for 1. All of these image processing conditions are tabulated.
The one suitable for 6A is automatically selected in accordance with the imaging condition f1 set in the terminal 25 described above. Image processing 11! Image data A1'' subjected to image processing under optimal conditions in device ii 30A is sent to image output device 70A.

This image output device 70A, for example, outputs the above-mentioned image data AI.
It consists of an optical scanning recording device that two-dimensionally scans a photosensitive film with a light beam modulated based on '' and an automatic developing machine that develops the exposed film. As a result, the image carrying the image data AI', ie, the transmitted radiation image of the patient 16, is output to the photosensitive film.

The hard copy 71A of the radiographic image formed using the above-described photosensitive film is used for diagnosis of the patient 16. As the image output device 70A, in addition to the -1-synthetic device, for example, a CRT display device or the like may be used.

The medical image management system 50 further includes an image processing device 30
[Also connected to 3, 30G, and 30D. Image processing] 1
11 g buy 30 [3 is the previous q・1 line image information + fJ i
i: record sales III'S% if' (10△do similar
J=1 line double image information record reading H1? '/+013 and output from the device 10[3 ('': t'l image 1'
-Image processing on evening 131/+I! i l] (Sent as image data 131' to image output device 70[3. Image output device i'770t3 outputs the image carried by this image data 131' as hard disk 1 beef 113. The image processing devices 30C and 130D are respectively connected to radiation image information reading and receiving devices U10G and 101). These reading devices 10G, 101] are of a format in which the image i; 7+Ii ray i! ii1 Radiographic image information is read from the storage 111 phosphor sheet 1~ in which the image threshold shadow has been irradiated, in the same manner as in the case of d months, to the record reading device 1(2)A. This kind of q/1 line image information reading device 10
Image data (';
1, I) 1 is different image processing tool d30G, 30
It was sent to [) and received the image processing 1ri. The image data C1' and f'l1M are sent to the image output device 700.70 [) to form a hard disk 1 beef 10.710. used.

-1 arrangement image data B1, C1, 1] 1 is the above-mentioned image 1 image f-ta Δ1 and system fli control Rji! 5
3 manually operated by j, and radiation IJJ ray image information +17 record reading neck 1013, h'l @44 ray image information reading neck i
o c, 10]) respectively, and the aforementioned rf) terminal 2! l and 1111's r[) terminal (illustrated 1!
j) is connected to each of these IF) terminals.
Patient information B2, C2, 1-]2 and l inputted as
1li shadow information 133, C3, [)3chi, said patient information A
2.1lla shadow information A3 as well as the system control device 51
is man-powered.

Next, the recording and accumulation (filing) of radiographic radiographs and 1-ray images by the medical image management system 00 will be explained.

System control device 51 of this medical image management system
consists of a well-known two-pointer system, and CP()(
central processing unit) 53, baseboard 571, interface 7J bus 55.56, disk drive 1 control neck 57, bus 58 that connects and covers the above parts, magnetic disk drive 59d3
It is composed of a disk dryer 760. Front) Ho σ door 1-board 61△ and display device 61
I3ha1i+! G 1) LJ 53 is connected, ma/C, t:, Ri! The interface 55 is connected to the interface 31 of the image processing device 30.

On the other hand, the optical disk device Q71,2 receives data from an interface 62 connected to the interface 56 of the system control device 51, an optical disk drive device 63, an optical disk drive 64, etc.

As mentioned above (personal information #Ij A 2, [32, C2, l)
2 aj J: Decoy shadow information Δ3.113, C3, []
3 are image processing devices 30△ and 30[3,3(l), respectively.
G, 301) to the system control device 51, and these information 'c+1 f, t i & ki disk drive 5
9 is sequentially recorded on a magnetic disk 65 driven by
A database is constructed. A floppy disk 66 driven by a 70-bit disk drive 60 is used for drive control of the system. -1- Patient information Δ2, [32, C2, D2 and ml shadow information A3
, [33,03,l)3 is also transferred to the optical disk mounting 52, and is also transferred to the image processing device 30Δ, 30R130C,3
Image data A1, [31, C1, 1 transferred from 0p
]1 are recorded and accumulated on an optical disc 61 driven by an optical disc drive 64.

Here (・', 4 types of image data A1.131, C1,
111 has a different format in 77. Similarly, patient information Δ2.132, C2, D2 and 1ii3 shadow information Δ3.133, C3, 1')3 have different formats. CI) U53 performs the predetermined data conversion stored on the floppy disk 66 - MATSU 1 - CONVERSION BLOG! +8, the image data Δ1.81, CI, 1)1 is converted into a common format and recorded on the optical disc 61 as common format data S1. J: t
) L, J 53t, patient information △2, [32, C2, 1
2 is also converted to a common format based on a predetermined conversion program, and then the shooting information A3, B3, C3, [)
3 is also converted to the common format h, and the magnetic disk 65d is stored as the common format 1 to data S2 and s3, respectively.
3 and recorded on the optical disc 61! Ru. The 70-tube disk 66 also stores an inverse conversion program for inversely converting the above-mentioned conversion, and the CPIJ 53 stores an inverse conversion program that performs the inverse conversion process based on the program.
I'm here. FIG. 3 schematically shows the data format conversion and inverse conversion described above. As is clear from FIG. 3, data formats 1 to
A2 and A3 are common) A-pine 1 to data conversion 4, data from image processing device 30B B1.132, "3
3 to Jt rough format data change IIA? things to do,
A device that converts data C1, C2, and C3 from the image processing device 30C into common format data; There are 14 types of conversions available, and 4 types of inverse conversion programs that perform inverse conversions of these conversions.

Here, referring to FIG. 2, image data S1, patient information S2, and imaging information S3 converted into a common format are shown.
For details on recording on the optical disc 61, see No. 12. FIG. 2 shows an outline of the recording format of the optical disc 67. In the figure, one scale on the vertical axis indicates the number 11 of the optical disc, and one scale on the horizontal axis indicates one sector. The image data S1 is recorded one image at a time in a sufficiently wide image data recording area 80 on the optical disc 67. As is well known, this data recording is done in the form of bit formation on the disk surface.
T is done. A header 81A is provided before and after one piece of image data 81 to record patient information S2 and imaging information S3 corresponding to the image data 81.

When the image data 81 is recorded on the optical disk 67 in the manner described above, 16 image directories corresponding to the image data 81 are recorded in the area 82 for the image directory.・)
One is recorded. Basically, the start address of the header 81A of each image data 81, the sector length of the image data 81, and characteristic information regarding the image data 81 are recorded in the image bureau i to 83.

In addition to the areas 80 and 82 mentioned above, the optical disc 67 has
Replacement directories 89Δ, 89B for replacing when the recorded contents of the image directory 83 are changed.
189G, . . . and an area 85 for forming a directory corresponding to newly recorded data when, for example, medical chart contents are newly recorded. Also, the first
The track includes a block 86 for recording the serial number of each disc and identification codes for sides A and 8, a block 87 for indicating when the optical disc is full, and a large number of directory entry blocks 88A, 8.
8B, 88C... are set (). The first directory entry 1 heli block 88A indicates that a group of image directories 83A, 183B, 83G, etc. is formed. records the start address and sector length of the file. The second directory entry 1-rib [1 block 8gB records the start address and sector length of the replacement directory group (89A, 89B189G...), and the third and subsequent directory entry blocks 88G... It is provided to record the start address and sector length of each future directory group.

As described above, the image data S1 in the common format is stored one image at a time on the optical disk 67, and the patient information S2 and imaging information S3 in the A-mat are sequentially stored in correspondence with each image data S1. recorded. Note that if the image data S1 is compressed using a known image data compression technique and then recorded on the optical disk 61, the number of images that can be stored on the optical disk 67 can be greatly increased. stomach.

In addition to the patient information S2 and the imaging information S3, the optical disk 67 records image data with a large amount of data.
If data compression technology is applied, for example, about 1000 images can be recorded and stored on one optical disk 67. On the other hand, the magnetic disk drive 5 has a lower recording capacity than the optical disk 67, but only patient information S2 and ML shadow information S3 are recorded there, so it can store patient information S2 and imaging information S3 for about 1 million images, for example. It is possible.

Next, we will explain how to search and re-output images.

As mentioned above, the magnetic disk 65 has 1. IL, Tsuno A
- Patient information S2 and photographic information S3 by Matt are accumulated to construct a database for image search. Image searcher: 61 display devices during operation + ¥6113
While observing: 1-- input the desired search data by operating the board 6+A. The system control device 51 searches for images that correspond to the input test data from the database built on the magnetic disk 65, and displays the image list 1 to 1 of those images 1'A on the display device 61.
13. As a general rule, the search data for item 1 is 11J, which includes all the information on the back of patient information S2 and image information S3! λ is in the sea urchin. For example, when the patient name in the patient information S2 is specified as search data, the display device 6113 displays the Mth image of all images related to the specified thought, the patient information S2 other than the name, Decoy image information S3 is displayed.

The searcher selects a desired image from the displayed image list and makes plans for re-output. At this time, image output devices 70Δ, 7011.700.70D are used for image output.
Specify which of the backs to use. This reserved image number is stored in the memory 54. By doing this, the specified image output device 70Δ, 1013.70
C or 701') and the image processing device 30A, 30B, 30C or 30[] connected thereto are in operation to immediately output an image based on the image data Δ1, B1, C1 or Dl. , it becomes possible to finish only the image search work. If the searched image is recorded on an optical disk other than the optical disk 67 loaded in the optical disk loading unit 52 at the time of search, the -b1 search work will not be wasted. After the above-mentioned reservation is made, the optical disc on which the reserved image is recorded is loaded into the optical disc neck 52, and the image can then be re-outputted.

After the above reservation is made, the image processing (i1j device 3OA,
When information indicating that the 3013.300 or 30r) has stopped operating is input to the system control device 51, the system control device 51 drives the optical disk head 52 and reads the reserved optical disk. The image is read out. At the time of this image readout, the first register 1 to reentry block 88 Δ is set to point 1, and a reading instruction for the image f register 1 to 2 groups (area 82) is received, and the image register 1 edge 83A, 83[3,8
3G... is read. When one image buillette ref 1 to 83 in which the reserved image number is written is specified by the pointer, one header 81A is specified, and the header 81A and Corresponding image data 81, blocks 81B, 81C
The recorded contents are read out.

Image data 81 (Sl) read out as described above
Patient information S2 and m recorded in the header 81A
The shadow information S3 is reversely converted by the CPU 53 into a specific format 1--C1, 100 IOA, 10B, 10C or 101) based on the above-mentioned reverse conversion program. The inverse conversion block used at this time [1 gram is the image output device 10Δ, 70B, 70C or 10
It is selected according to the specification of 1). 1. For example, if the image 111 input device 70B is specified, the image data S1, patient information S2, and award information S3 in the common format are stored in the radiographic image information recording and reading device 101.3.
Image data R1 in a unique format, patient information [
32, and is inversely converted to history image information B3. The image data 81, patient information B2, and decoy image information [33 that have been inversely transformed in this way are transferred from the system control unit 51 to the image processing J
The information is transferred to the head 30B. Image data] 31 undergoes image processing such as gradation processing and frequency processing in this image processing unit 3OR, and then is sent to an image output device 7013.In the image output device 70B, this image processed data is Based on the image data 131', the image is output in the same manner as described above, and the radiation image hard copy 11
B is formed. In addition, patient information [32 OJ, and Ifii
The shadow information 113 is used to store patient information and award information in the hard copy 718 a5. that's all,
We have described the case where the A-matte data S1, B2 and B3 are inversely converted into data B1, B2 and B3 in their own formats I to J, respectively, and the image is re-outputted. 82 and B3 to other unique format data and output the image, the same processing as above is performed, and each hard copy 1
1△, 710 or 710 is obtained.

In the above embodiment, only one operating unit 61 is provided, but for example, the radiographic image information recording/reading devices 10A, 10B1, and the radiographic image information reading devices 10G, 10D installed in each building or floor of the hospital, etc. Of course, it is also possible to provide a pair of terminal devices similar to the one in operation 61, so that commands for image retrieval and re-output can be given to the medical image management system 50 from each building and each floor.

In addition, although an embodiment has been described in which the system is combined with a device that outputs image data carrying a radiographic image, which is one of medical images, the medical image management system of the present invention is also applicable to other devices such as a CT device or an MR device. Can also be combined with equipment
Furthermore, it is also possible to combine several of these different types of devices. Further, the number of image data supply devices connected to the medical image management system of the present invention is not limited to four in the above embodiment, and other numbers (plurality) of image data supply devices may be connected. . However, as mentioned above, in terms of reducing the number of data conversion programs compared to the case where data conversion is performed between each image data supply device, the medical image management system of the present invention can be used with four or more image data supply devices. It is preferable to connect with

(Effects of the Invention) As described above in detail, according to the medical image management system of the present invention, image data supplied from a certain image data supply device and filed is transferred to an image output device for another image data supply device. Since the images can be sent and re-outputted, it is possible to output all filed medical images regardless of their type using an image output device that is nearby in a hospital or the like. Therefore, this system can speed up diagnosis using medical images and save labor in the medical field.

Furthermore, when the medical image management system of the present invention has a large number of connected image data supply devices, the number of data format conversion programs to be prepared is greater than in a system that performs data format conversion between each image data supply device. It requires less and can be formed at a lower cost.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram showing a medical image management system according to an embodiment of the present invention, FIG. 2 is an explanatory diagram outlining the recording format of an optical disc used in the above system, and FIG. FIG. 2 is an explanatory diagram schematically showing how data format conversion is performed. 10A, IOB...Radiation image information recording/reading device 10
C, 101)...Radiation image information reading device 30A-D
...Image processing device 50...Medical image management system 51...System control device 52...Optical disk device 53...CPU 59...Magnetic disk drive 61A...Keyboard 61B...
Display device 64... Optical disk drive 65... Magnetic disk 66... File disk 67... Optical disk A1, B1, C1, r) 1... Image data A2, B2, in a unique format
C2, B2...Patient information in unique format A3, B3, C
3, B3

Claims (1)

[Scope of Claims] A medical image management system that receives image data carrying medical images and image search data from a plurality of image data supply devices, and records and stores these data on a recording medium, comprising: A data format conversion means is provided for converting the data supplied from the data supply device from a format unique to each of these devices to a common format for recording on the recording medium, and for performing inverse conversion of this conversion. Features of the medical image management system.