JPH06343626A - Image photographing device for use in medical service - Google Patents

Abstract

PURPOSE:To print an image photographed at the previous time and an image at this time in continuous frames of a film. CONSTITUTION:An X-ray beam B having penetrated an object to be inspected M is sensed by a scintillation screen 12 and a CCD 14 and written in a RAM 17 as image information. The image in a portable storing medium C is written in the RAM 17 through a portable storing medium read/write circuit 18, photographing conditions write circuit 19, compression/elongation circuit 20, and RAM read/write circuit 21. The output of the RAM 17 is connected with a modulator circuit 26 through a RAM sequential read circuit 23, variable power circuit 24, and look-up table 25, and the image photographed at this time from the CCD 14 written in the RAM 17 by laser beam L modulated by the modulator circuit 26 and the image photographed at the previous time from the portable storing medium C are printed in successive frames on a film F.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a medical image photographing apparatus for photographing a fluoroscopic image of a human body by radiation such as X-rays and ultrasonic waves and outputting the image on a film.

[0002]

2. Description of the Related Art Medical image capturing devices are medical CT, M
It is an apparatus for writing an image transferred from a medical modality such as RI, DSA, and an ultrasonic diagnostic apparatus on a film by using a laser imager or the like.

(1) Conventionally, in a mass examination, an X-ray image of the chest is taken by a medical image taking device such as a mirror camera in order to diagnose diseases such as tuberculosis and lung cancer. The mirror camera converts two-dimensional X-rays through the human body into a two-dimensional X-ray intensity distribution by a scintillation screen, and the two-dimensional X-ray intensity distribution is reduced by an optical system to 100 m.
It is a device for printing on a roll film of about m. 100
A roll film having a size of about mm is considered as a suitable storage medium for a mass examination for diagnosing a large number of images.

(2) Regarding connection between the laser imager and the medical modality, a digital interface in a broad sense such as a video interface, a digital interface using RS422, a network interface such as Ethernet, etc. is used. Has been. In the case of a video interface or a digital interface using RS422, commands such as image format on the film, timing for saving the image and timing for printing the image are performed by an input device called a keypad. The keypad is provided with a display unit that displays the system status of the medical image capturing apparatus.

FIG. 6 is a block diagram of an ultrasonic diagnostic apparatus which is a conventional medical modality. Ultrasonic diagnostic device 1
Generally comprises an ultrasonic image acquisition unit 2 and an observation monitor 3 as shown in FIG. The connection between the ultrasonic image acquisition unit 2 and the observation monitor 3 often uses an NTSC video signal. When the ultrasonic diagnostic apparatus 1 which is a medical modality is connected to the laser imager via the video interface, the video signal input to the observation monitor 3 is separated as it is and input to the laser imager.

[0006]

[Problems to be Solved by the Invention]

(B) When diagnosing diseases such as tuberculosis and lung cancer by X-ray images in mass examinations and the like, many doctors have pointed out that the diagnostic accuracy is improved if there is a previous image of this site. However, in the above-mentioned conventional example (1), when faced with an image that cannot be diagnosed in a medical examination conducted by a company, if one tries to view the image of the previous year, the roll film of the previous year will be used to display the It is necessary to find the shooting number as a clue. Moreover, since the roll film is stored by the company, it is necessary to deliver the roll film to the doctor who makes the diagnosis prior to the diagnosis. Due to such inconvenience, the image of the previous year is rarely used for diagnosis, and there is a drawback that it is difficult to perform diagnosis with high accuracy.

(B) Further, in the above-mentioned conventional example (2), when inputting various commands from the keypad, medical CT, MR
In the case of modalities such as I and DSA, image collection has been completed in advance, so even if a large amount of system status information is displayed on the keypad display, there is no room to input commands while looking at the keypad. is there. However, in the case of inputting a command from the keypad to the medical image capturing device as in the case of an ultrasonic diagnostic device, the command is input while looking into both the display part of the keypad and the observation monitor. Since it has to be done, there is a drawback that it is a great burden on the operator.

The first object of the present invention is the above-mentioned problem (a).
By eliminating the problem and printing images taken in this inspection and images taken in the previous inspection on consecutive frames of film so that both images can be easily compared, diagnosis can be performed with high accuracy. An object of the present invention is to provide a medical image capturing apparatus capable of performing.

The second object of the present invention is to solve the above problem (b).
By displaying the system status of the medical image capturing device by superimposing it on the observation monitor, you can operate the keypad while looking at the observation monitor, and the medical image capturing is easy on the operator. To provide a device.

[0010]

The medical image capturing apparatus according to the first aspect of the present invention for achieving the above object comprises an X-ray generator for emitting a two-dimensional X-ray beam to an object. , A scintillation screen for receiving the two-dimensional X-ray beam transmitted through the object and converting it into a two-dimensional X-ray intensity distribution, and connecting the two-dimensional X-ray intensity distribution of the scintillation screen to a two-dimensional CCD. An optical system for forming an image, a CCD controller for scanning an electric charge accumulated in the CCD to extract an analog image signal corresponding to each pixel as image data, and for converting the analog image signal into a digital image signal A / D converter and RAM for storing the digital image signal
A read circuit for sequentially reading digital image signals from the RAM, and a modulation circuit for D / A converting the digital image signals read from the RAM to modulate the laser.
A main scanning mechanism for scanning the modulated laser light in the main scanning direction, a sub-scanning mechanism for sub-scanning the film in a direction substantially orthogonal to the main scanning direction, a reading circuit for reading data from a portable storage medium, and A writing circuit for writing the image data read from the portable storage medium to an address other than the image data address of the collected image stored in the RAM as a digital image signal is provided, and the collected image of the film is printed. The image read from the portable storage medium is printed on the next frame following the frame.

A medical image capturing apparatus according to a second aspect of the present invention is an X-ray generator for emitting a two-dimensional X-ray beam to an object, and the two-dimensional X-ray beam transmitted through the object. The scintillation screen for receiving the light and converting it into a two-dimensional X-ray intensity distribution, an optical system for forming an image of the two-dimensional X-ray intensity distribution of the scintillation screen on a two-dimensional CCD, and a storage in the CCD. A CCD controller for scanning an electric charge to extract an analog image signal corresponding to each pixel as image data, and an A / C for converting the analog image signal into a digital image signal.
A D converter, a RAM for storing the digital image signal, a reading circuit for sequentially reading the digital image signal from the RAM, a digital image signal read from the RAM for D / A conversion, and a laser modulation. A modulation circuit for applying the light, a main scanning mechanism for scanning the modulated laser light in the main scanning direction, a sub-scanning mechanism for sub-scanning the film so as to be substantially orthogonal to the main scanning direction, and a first portable storage medium. A read circuit for reading data, a read / write circuit for reading / writing data from / to a second portable storage medium, and an ID number setting circuit for the object are provided to collect images stored in the RAM as digital image signals. The ID number is overlaid and printed on the film, and
When the image read from the portable storage medium is stored in the second portable storage medium, the image is stored with a file name having the same ID number as the ID number.

According to a third aspect of the present invention, there is provided an image capturing apparatus for medical use, which includes an imposing video signal generating circuit for generating a superimposing signal for an input video signal and a superimposing signal for the input video signal. And a superimpose circuit for performing an imposition. The superimpose circuit is controlled by the CPU to superimpose the system state of the medical image capturing apparatus.

[0013]

The medical image photographing apparatus according to the first aspect of the invention having the above-described structure prints the image read from the portable storage medium on the frame next to the frame on which the collected image of the film is printed.

In the medical image photographing apparatus according to the second invention, when the collected image stored in the RAM as a digital image signal is printed on the film, the ID number is overlaid and printed. The image read from the portable storage medium is saved in the second portable storage medium with a file name having the same ID number as the ID number when printed on the film.

The medical image capturing apparatus according to the third aspect of the present invention superimposes the system state of the medical image capturing apparatus on the video signal.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail with reference to the embodiments shown in FIGS. FIG. 1 is a block circuit configuration diagram of the first embodiment. The X-rays emitted from the X-ray generator 11 are shaped into a two-dimensional X-ray beam B by a collimator, and the test object M and the scintillation screen 12 are sequentially arranged on the optical path of the X-ray beam B. There is. The X-ray beam B is converted into a two-dimensional fluorescence pattern P by the scintillation screen 12, and an imaging optical system 13 and a two-dimensional CCD (Charge C) are provided on the optical path of the two-dimensional fluorescence pattern P.
Oupled Device) 14 are sequentially arranged.

The output of the CCD 14 is the CCD controller 1
5 and the A / D converter 16 are connected to the RAM 17. A portable storage medium read / write circuit 18 for reading / writing the data of the portable storage medium C is connected to the compression / expansion circuit 20 together with the output of the photographing condition writing circuit 19, and the compression / expansion circuit 20 is connected to the RAM 1 via the RAM read / write circuit 21.
Connected to 7. The output of the ID number setting circuit 22 is also connected to the RAM 17.

The output of the RAM 17 is the RAM sequential read circuit 2
3, the variable power circuit 24 and the look-up table 25 are connected to the modulation circuit 26, and the output of the modulation circuit 26 is connected to the laser light source 27. The laser light L from the laser light source 27 is scanned on the film F in the main scanning direction by the main scanning mechanism 28, and the film F is sub-scanned by the sub-scanning mechanism 29 in a direction substantially orthogonal to the main scanning direction of the laser light L. It is like this.

The X-rays emitted from the X-ray generator 11 are
A two-dimensional X-ray beam B is shaped by a collimator (not shown), and the object M to be inspected is irradiated with the beam. Object to be inspected M
The X-ray beam B that has passed through is converted into a two-dimensional fluorescence pattern P by the scintillation screen 12, and this fluorescence pattern P is reduced by the imaging optical system 13 and imaged on the two-dimensional CCD 14. The charges accumulated in the CCD 14 having 2000 × 2000 pixels are sequentially taken out by the CCD controller 15, and the taken out analog signal is converted into a 12-bit digital signal by the A / D converter 16 and written in the RAM 17. The portable storage medium C is an optical card having a storage capacity of 4 megabytes in this embodiment. The previously captured image stored in the portable storage medium C is searched and read by the portable storage medium read / write circuit 18. When the read image is compressed, it is expanded by the compression / expansion circuit 20,
The expanded image is stored in the RAM by the RAM read / write circuit 21.
The image is written in an address different from the address of the image read from the CCD 14 in 17.

The shooting date of the previously shot image stored in the portable storage medium C is overlaid on the image read from the portable storage medium in the RAM 17.
The ID number setting circuit 22 is a circuit that manages a medical examination target M, for example, a medical examination ID number (not shown) of a medical examinee,
It is updated according to the operator of the apparatus or X-ray exposure. The consultation ID number is overlaid on the two images of the image read from the CCD 14 in the RAM 17 and the image read from the portable storage medium C. The two images in the RAM 17 are sequentially read by the reading circuit 23 in synchronization with the printing on the film F.

The number of pixels to be printed on one frame on the film F is 2000.times.2000 pixels, and the image read from the CCD 14 is also 2000.times.2000 pixels, so that scaling is not necessary, but it is read from the portable storage medium C. Image is 100
In some cases, the size is reduced to 0 × 1000 pixels or the like, and in that case, the scaling circuit 24 performs scaling so that the area of 2000 × 2000 pixels is displayed as large as possible.
Even if the image read from the portable storage medium C has not been reduced, the scaling circuit 24 scales the image by one.

The image data scaled by the scaling circuit 24 is data-converted through a look-up table 25 that matches the density characteristics of the film F. The digital data that has passed through the look-up table 25 is D / A converted and converted into laser light L by the modulation circuit 26 that modulates the laser light source 27. The laser beam L scans on the film F by the main scanning mechanism 28 which scans in the main scanning direction. The film F is sub-scanned in a direction substantially orthogonal to the main scanning direction by a sub-scanning mechanism 29 for sub-scanning the film in parallel with the scanning in the main scanning direction.

In parallel with the above printing operation, RA
The read image from the CCD 14 in M17 is read by the RAM read / write circuit 21. The read image is compressed by the compression / expansion circuit 20 and written in the portable storage medium C by the portable storage medium read / write circuit 18. At this time, the photographing condition writing circuit 19 writes the photographing condition and the photographing date and time in the portable storage medium C via the portable storage medium reading / writing circuit 18.

Here, the procedure of the group medical examination using the medical image photographing apparatus of the first embodiment will be described. One portable storage medium C is given to each person who receives the medical examination. The health examination is usually carried out once a year. First, the first year in which the portable storage medium C is distributed will be described. The examinee receives an X-ray image diagnosis by the medical image capturing apparatus here. Since this X-ray image is digitized and collected, it is written on the film F, which is a diagnostic medium, using the principle of a laser imager. At this time, the X-ray image, the region to be imaged, the date of imaging, and the X-ray imaging condition are also written in the portable storage medium C brought by the patient and handed to the patient. At the next group medical examination, the examinee brings the portable storage medium C on which the image was written at the time of the previous group medical examination.

When the portable storage medium C is set in the medical image capturing apparatus at the time of receiving the X-ray image diagnosis of the examinee,
At the same time that the medical image capturing device performs an image capturing operation, it reads the image captured during the previous group medical examination from the portable storage medium C into the RAM 17 in the medical image capturing device. In addition,
The previously captured image referred to here is the most recently captured image of the same region. Examinee is portable storage medium C
If you don't bring your own photo, or if you don't have an image of the same region, the image will not be read.

The case where an image exists will be described below.
The image captured this time and the image read from the portable storage medium C are stored in different addresses on the RAM 17. The two images on the RAM 17 are written on the film F using the principle of the laser imager. At this time, the consultation ID number is overwritten and written outside the effective image area on the film F. Of course, in this case as well, the X-ray image taken at this time, the part to be imaged, the imaging date, and the X-ray imaging conditions are written in the portable storage medium C brought by the examinee, and the portable storage medium C is presented to the examinee. Will be returned.

If there is no previously captured image,
As in the first year, only the X-ray image taken at this time is written on the film F, and the X-ray image, the part to be imaged, the date of imaging, and the X-ray imaging conditions are written on the portable storage medium C, and the examinee receives it. Will be returned. The above process is repeated in subsequent medical examinations.

In the above-described first embodiment, since two images are written on the film F for one examinee, the film amount is required to be doubled. Writing the previous image on the film F is meaningful for diagnosis, but cost may be a problem. For example, the cost is serious in mass screenings conducted by local governments.

In such a case, the image read from the portable storage medium C brought by the examinee is written in the second portable storage medium without being written in the film F, and the second portable storage medium is written. When necessary, the image of the storage medium may be displayed on a CRT such as a diagnostic workstation or output to an image output device such as a laser imager. When writing an image in the second portable storage medium, a file name with a consultation ID number is set in consideration of ease of retrieval. For convenience, the second portable storage medium needs to have a larger storage capacity than the first portable storage medium carried by the examinee.

FIG. 2 is a block circuit diagram of the second embodiment. Here, the members having the same reference numerals as those in the first embodiment have the same functions, and the description thereof will be omitted. The first portable storage medium read / write circuit 31 is connected to the compression / expansion circuit 20 together with the shooting condition writing circuit 19, and the second portable storage medium read / write circuit 32 is used in the shooting condition writing circuit 1.
9, the first portable storage medium read / write circuit 31, the compression / expansion circuit 20, and the ID number setting circuit 22.

The first portable storage medium C1 is an optical card having a storage capacity of 4 megabytes. The previously captured image stored in the first portable storage medium C1 is searched and read by the first portable storage medium read / write circuit 31. First
The image read from the second portable storage medium C1 is transferred to the second portable storage medium via the second portable storage medium read / write circuit 32.
Written to C2. The file name for storing the image when writing it in the second portable storage medium C2 includes the consultation ID number generated by the ID number setting circuit 22. For example, when the consultation ID number is 1234, the file names are Image1234 and 1234.img.

Further, in parallel with the printing operation, the CCD 1
The read image from RAM 4 in RAM 17 is read by RAM read / write circuit 21. The read image is compressed by the compression / expansion circuit 20 and written in the first portable storage medium C1 by the first portable storage medium read / write circuit 31. At this time, the photographing condition writing circuit 19 writes the photographing condition and the photographing date and time in the first portable storage medium C1 via the first portable storage medium reading / writing circuit 31. The first portable storage medium C1 managed by the examinee is an inexpensive one such as a write-once optical card because the image is not erased by mistake and the number is large, one per person. Is suitable. As for the second portable storage medium C2 used on the diagnosis side, it is desirable that about 1000 images can be written and it is repeatedly used, and therefore, the erasable M
Things like O (magneto-optical) disks are suitable.

When the collected image is digitized, the number of pixels needs to be about 2000 × 2000 pixels. If each pixel has 12 bits, the storage capacity for one image is 6 megabytes, and a write-once optical card with a storage capacity of about 4 megabytes cannot be used. Therefore, it is necessary to apply image compression such as the JPEG standard using the redundancy of the X-ray image to perform band compression to 1/10 to 1/15. Compressing a 6 megabyte image by a factor of 15 gives 4
It will be 00 kilobytes, and a 4-megabyte optical card can store images for 10 years.

It is also possible to reduce the number of pixels depending on the method of image compression. For example, 2000 × 20
If the 00 pixel image is reduced to 1000 × 1000 pixels and further band-compressed to 1/15, the image storage capacity will be 10
It will be 0 kilobytes. If the image read from the first portable storage medium C1 brought by the examinee is compressed as described above, it is necessary to perform scaling before writing on the film F. That is, the output pixel count of the laser imager is 200
In the case of 0x2000 pixels, the captured X-ray image is 20
Since it is 00 × 2000 pixels, it can be output at 1 ×, but the image of 1000 × 1000 pixels read from the portable storage medium C1 is subjected to double magnification in the main scanning direction and the sub-scanning direction, and then on the film F. It is necessary to make the pixel sizes of the two images to be observed equal.

The use of the image stored in the first portable storage medium C1 managed by the examinee is not limited to the group examination, and the reading device and the image display device or the image output for reading the portable storage medium C1 are used. With the device, it can be used for general disease diagnosis.

FIG. 3 is a block circuit configuration diagram of the third embodiment. The ultrasonic diagnostic apparatus 41, which is a medical modality, includes an ultrasonic image acquisition unit 42 and an observation monitor 43. The output of the ultrasonic image acquisition unit 42 is connected to the medical laser imager 44,
Is connected to the observation monitor 43.

Information relating to the system state of the medical image capturing apparatus is superimposed on the video signal of the image collected by the ultrasonic image collecting section 42 by the medical laser imager 44 and displayed on the observation monitor 43.

FIG. 4 is a block circuit diagram for explaining the operation of the medical laser imager 44 described in FIG. 3 in more detail only for the medical laser imager 44. The input terminal 51 of the medical laser imager 44 is connected to a superimposing circuit 52, an imposing video signal generating circuit 53 and a video signal storing circuit 54, and the output of the superimposing circuit 52 is connected to a video output terminal 55. There is. The output of the imposing video signal generating circuit 53 is connected to the superimposing circuit 52. The video signal storage circuit 54 is connected to the system bus 56, and the system bus 56 includes a CPU 57, a page memory 58, a mechanism system control circuit 59, and a program storage ROM.
60, the RAM 61 and the keypad interface 62 are connected to each other.

The output of the CPU 57 is connected to the imposing video signal generating circuit 53 and the data reading circuit 63, and the output of the data reading circuit 63 is connected to the optical system 65 via the D / A conversion circuit 64. The output of the page memory 58 is connected to the data reading circuit 63, and the output of the mechanism system control circuit 59 is connected to the mechanism system 66. The keypad interface 62 is connected to the keypad 67, and the keypad 67 includes an escape key 68, a store key 69,
A print key 70 is provided.

The escape key 68 is used to enter a mode for specifying superimpose setting, image erasing, window conversion, image enlarging method and format for a video signal. What is superimpose setting?
It is to set the position, size, and density for superimposing. The position suitable for superimpose depends on each ultrasonic diagnostic apparatus, and is adjusted by the user or a serviceman at the time of setup. The information relating to the position and the size may be prepared by previously creating a look-up table in the ROM 60 for each ultrasonic diagnostic apparatus and selecting it. The designation of image deletion is to select an image to be deleted from the already stored images. The designation of window conversion determines the relationship between the intensity of the input video signal and the density of the image output on the film, and is also determined by reflecting the characteristics of the film. Specifying the image enlargement method means selecting an image enlargement method such as replication, bilinear, or cubix spline, and specifying the format means specifying how many images are arranged on the film. .

The input video signal of the acquired image output from the ultrasonic image acquisition unit 42 is supplied via the input terminal 51 to the superimposing circuit 52 and the imposing video signal generating circuit 5.
3 and the video signal storage circuit 54. The video signal storage circuit 54 stores an input video signal in a video memory in the video signal storage circuit 54 with 8 bits for each pixel in accordance with a command from the CPU 57. The video signal of the collected image stored in the video memory is R
The density is converted using the look-up table stored in the AM 61 and transferred to the page memory 58 having a storage capacity of one film.

At this time, the keypad interface 62
If the enlargement mode is designated by, the CPU 57 interpolates by the interpolation method designated by the keypad interface 62 and transfers it to the page memory 58. Similarly,
Look-up table also keypad interface 62
Specified by Imposing video signal generation circuit 53
Outputs a video signal which imposes a character or figure designated by the CPU 57 at a designated position at a timing of the input video signal. The video signal output from the imposing video signal generating circuit 53 is superimposed on the input video signal by the superimposing circuit 52. The superimposed video signal is output as an output video signal via the output terminal 55 to the observation monitor 4
3 is output.

When a print command is issued from the keypad interface 62, the CPU 57 causes the mechanical system control circuit 5 to operate.
The mechanical system 66 is operated via 9 to sub-scan the film. The data reading circuit 63 is synchronized with the sub-scanning of the film.
Reads the video signal of the collected image from the page memory 58. The read video signal is converted into an analog signal by the D / A conversion circuit 64, and the laser beam is modulated by this analog signal. The modulated laser light is mainly scanned by the optical system 65 to scan the film.

FIG. 5 (a) is an explanatory diagram in which the acquired images collected by the ultrasonic image acquisition unit 42 are displayed on the observation monitor 43, and FIG. 5 (b) shows information on the system state of the medical image capturing apparatus. It is explanatory drawing displayed on the monitor for observation 43 by superimposing on the collected image. As can be seen from FIG. 5 (b), the standby state and the image storage state of the medical image capturing apparatus are displayed with an implied star,
The operator can operate the keypad 67 while looking at the observation monitor 43.

[0045]

As described above, the medical image capturing apparatus according to the first aspect of the present invention can observe the image captured in the inspection of this time and the image captured in the previous time on a continuous film. This has the effect of facilitating the diagnosis and improving the diagnostic accuracy. Also, since the same consultation ID number is overlaid on the image taken in this examination and the image taken last time, it is easy to distinguish the examinee even on the roll film.
Moreover, the image taken last time will be overlaid with the date taken, which will be helpful for diagnosis.

In the medical image photographing apparatus according to the second invention, when the previously photographed image is stored in the second portable storage medium, the consultation ID number is added to the file name. It becomes easy to search for the selected image on the second portable storage medium.

In the medical image photographing apparatus according to the third aspect of the present invention, since the system status of the medical image photographing apparatus is sequentially displayed on the observation monitor, the operator can operate the keypad while looking at the observation monitor. The burden on operation is reduced. Further, the display part of the keypad is not required, which leads to cost reduction.

[Brief description of drawings]

FIG. 1 is a block circuit configuration diagram of a first embodiment.

FIG. 2 is a block circuit configuration diagram of a second embodiment.

FIG. 3 is a block circuit configuration diagram of a third embodiment.

FIG. 4 is a block circuit configuration diagram of a laser imager.

FIG. 5 is an explanatory diagram of superimpose.

FIG. 6 is a block circuit configuration diagram of a conventional example.

[Description of Reference Signs] 11 X-ray generator 13 Imaging optical system 14 CCD 15 CCD controller 16 A / D converter 17 RAM 18, 31, 32 Portable storage medium read / write circuit 19 Imaging condition writing circuit 20 Compression / expansion circuit 22 ID Number setting circuit 24 Variable magnification circuit 25 Look-up table 26 Modulation circuit 27 Laser light source 28 Main scanning mechanism 29 Sub-scanning mechanism 41 Ultrasonic diagnostic device 42 Ultrasound image acquisition unit 43 Observation monitor 44 Medical laser imager

Claims (16)

[Claims] 1. An X-ray generator for radiating a two-dimensional X-ray beam to an object, and a two-dimensional X-ray intensity distribution upon receiving the two-dimensional X-ray beam transmitted through the object. Scintillation screen for converting into a scintillation screen, an optical system for forming a two-dimensional X-ray intensity distribution of the scintillation screen on a two-dimensional CCD, and a charge accumulated in the CCD to scan each pixel as image data. CCD controller for extracting an analog image signal corresponding to the above, an A / D converter for converting the analog image signal into a digital image signal, a RAM for storing the digital image signal, and a digital image from the RAM A readout circuit for sequentially reading out signals and a modulation circuit for D / A converting the digital image signal read out from the RAM and modulating the laser. Path, a main scanning mechanism for scanning the modulated laser light in the main scanning direction, a sub-scanning mechanism for sub-scanning the film in a direction substantially orthogonal to the main scanning direction, and a reading circuit for reading data from a portable storage medium. And a writing circuit for writing the image data read from the portable storage medium to an address other than the image data address of the collected image stored in the RAM as a digital image signal,
An image capturing apparatus for medical use, characterized in that an image read from the portable storage medium is printed on a frame next to a frame on which the collected image of the film is printed. 2. An ID number setting circuit for the object is provided,
When printing on film, the same ID is used for the two images, the collected image and the image read from the portable storage medium.
The number is overlaid, and for the image read from the portable storage medium, the ID number is added with the shooting date and time of the image read from the portable storage medium to perform overlay printing. The medical image capturing apparatus described. 3. The medical image photographing apparatus according to claim 1, wherein photographing conditions, photographing dates and the like of the collected images stored in the RAM are written in the portable storage medium. 4. The medical image capturing apparatus according to claim 3, wherein image data is compressed and written when the collected image stored in the RAM is written in the portable storage medium. 5. The medical device according to claim 1, wherein the digital image signal read from the RAM is D / A-converted after passing through a look-up table to modulate the laser. Image capture device. 6. When the number of pixels of the collected image and the image read from the portable storage medium is different from the number of pixels printable on a film, scaling is performed in the main scanning direction and the sub scanning direction. The medical image capturing apparatus according to claim 1, wherein the image is printed. 7. An X-ray generator for emitting a linear X-ray beam to the object in place of the two-dimensional collection type, and the linear X-ray beam transmitted through the object. Line sensor for receiving and converting into a one-dimensional X-ray intensity distribution, a sub-scanning mechanism for sub-scanning the X-ray beam and the line sensor so as to be substantially orthogonal to the line sensor, and accumulating in the line sensor The medical image capturing apparatus according to claim 1, further comprising: a line sensor controller that scans the electric charges to extract an analog image signal corresponding to each pixel as image data. 8. An X-ray generator for radiating a two-dimensional X-ray beam to an object, and a two-dimensional X-ray intensity distribution upon receiving the two-dimensional X-ray beam transmitted through the object. Scintillation screen for converting into a scintillation screen, an optical system for forming a two-dimensional X-ray intensity distribution of the scintillation screen on a two-dimensional CCD, and a charge accumulated in the CCD to scan each pixel as image data. CCD controller for extracting an analog image signal corresponding to the above, an A / D converter for converting the analog image signal into a digital image signal, a RAM for storing the digital image signal, and a digital image from the RAM A readout circuit for sequentially reading out signals and a modulation circuit for D / A converting the digital image signal read out from the RAM and modulating the laser. A path, a main scanning mechanism for scanning the modulated laser light in the main scanning direction, a sub-scanning mechanism for sub-scanning the film so as to be substantially orthogonal to the main scanning direction,
A read circuit for reading data from the portable storage medium of the second,
Of a portable storage medium for reading and writing data, and an ID number setting circuit for the object. The ID number is overlaid on the collected image stored as a digital image signal in the RAM and printed on film. In addition, when the image read from the first portable storage medium is stored in the second portable storage medium, the image is stored with a file name having the same ID number as the ID number. Medical image capturing device. 9. An X-ray generator for radiating a linear X-ray beam to the object in place of the two-dimensional collection type, and the linear X-ray beam transmitted through the object. Line sensor for receiving and converting into a one-dimensional X-ray intensity distribution, a sub-scanning mechanism for sub-scanning the X-ray beam and the line sensor so as to be substantially orthogonal to the line sensor, and accumulating in the line sensor 9. The medical image capturing apparatus according to claim 8, further comprising: a line sensor controller for scanning the generated electric charges to extract an analog image signal corresponding to each pixel as image data. 10. The medical image capturing apparatus according to claim 8, wherein the storage capacity of the second portable storage medium is larger than that of the first portable storage medium. 11. The medical image capturing apparatus according to claim 8, wherein the first portable storage medium is a write-once storage medium, and the second portable storage medium is an erasable storage medium. . 12. An impose video signal generation circuit for generating a superimpose signal with respect to an input video signal, and a superimpose circuit for superimposing the superimpose signal on the input video signal. However, the superimposing circuit is controlled by the CPU,
A medical image capturing device, characterized in that the system state of the medical image capturing device is superimposed. 13. The medical image capturing apparatus according to claim 12, wherein the stored state during multi-format is superimposed. 14. The medical image capturing apparatus according to claim 12, wherein a video signal stored in a video memory is the input video signal. 15. The medical image capturing apparatus according to claim 12, wherein a position for superimposing is controlled by a keypad. 16. The medical image capturing apparatus according to claim 12, further comprising an ultrasonic image acquisition unit, an observation monitor, and a laser imager, wherein the laser imager is inserted between the ultrasonic image acquisition unit and the observation monitor. apparatus.