JP2001022868A - Method and system for outputting image - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simultaneously output more than two kinds of usable subtraction image information to image output terminal equipment. SOLUTION: This system is provided with an image output means 10 for reading the latest breast radiographic image (source image) P1 of a patient having a designated ID number inputted from the outside, energy subtraction images P5 and P6 having the same ID number, a past image P2, a processed image P3 which is obtained by applying frequency emphasizing processing the source image P1, and a time passage subtraction image P4 based on the source image P1 and the past image P2 respectively out of a data base 40 according to the ID numbers and information corresponding to the respective images and individually outputting these images to respective external CRT terminal equipment 51-56.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to an image output method and an image output system, and more particularly to an improvement in an output mode for outputting a subtraction image to an image display terminal or an image print terminal.

[0002]

2. Description of the Related Art A recorded radiographic image is read to obtain an image signal, and the image signal is subjected to appropriate image processing.
Reproduction and recording of images are performed in various fields.
In addition, the applicant (X-ray, α-ray, β-ray, γ
A part of this radiation energy is accumulated when irradiated with an electron beam, an electron beam, ultraviolet rays, or the like, and thereafter, when irradiated with excitation light such as visible light, a stimulable phosphor (stimulated luminescence) that exhibits stimulated emission according to the accumulated energy. A radiation image of an object such as a human body is once photographed and recorded on a sheet-like stimulable phosphor (accumulative phosphor sheet) using the stimulable phosphor sheet, and the stimulable phosphor sheet is used as an excitation light such as a laser beam. To generate photostimulated light,
A radiation image recording / reproducing system that photoelectrically reads the obtained stimulated emission light to obtain image data, and outputs a radiation image of the subject as a visible image to a recording material such as a photographic photosensitive material or a CRT based on the image data. Have already been proposed (JP-A-55-12429, JP-A-56-11395, JP-A-55-163472).
Nos. 56-104645 and 55-116340). According to this system, it is possible to obtain a radiographic image having a wide latitude and excellent suitability for observation and interpretation.

In a system using a radiation film, a stimulable phosphor sheet, or the like as described above, a plurality of recorded radiation images are read to obtain a plurality of image data, and then the radiation image is obtained based on the image data. Image subtraction processing may be performed.

[0004] Here, the subtraction processing of a radiographic image refers to, in principle, a process of obtaining an image corresponding to the difference between a plurality of radiographic images taken under different conditions, and a plurality of radiographic images are converted to a predetermined radiographic image. By reading at a sampling interval, a plurality of digital image data corresponding to each radiation image is obtained, and a predetermined weighted subtraction process is performed on each of the corresponding sampling points (pixels) of the plurality of image data, thereby specifying the radiation image in the radiation image. Is a process of obtaining a radiation image in which only the subject portion (shadow of a tissue or a structure) is emphasized or extracted.

As one of the subtraction processes,
Energy subtraction processing is known. There are the following two types of energy subtraction processing.
The first is a method called so-called two-shot energy subtraction processing, and the other is a method called one-shot energy subtraction processing.

[0006] In the two-shot method, two types of radiation having different energy distributions are radiated once to a subject, and radiation image information transmitted through the subject is obtained for each irradiation. Subtraction processing between two radiographic image information,
This method is excellent in that a large difference in irradiation energy between shots can be ensured. On the other hand, in the one-shot method, two stimulable phosphor sheets in which an energy separating plate or the like for changing the energy distribution is interposed between the sheets are irradiated once with radiation, and radiation images having different energy distributions are applied to the respective sheets. It records information and performs subtraction processing between these two pieces of radiation image information, and is excellent in that there is very little displacement of the subject image between the two pieces of image information (Japanese Patent Laid-Open No. 59-83486, etc.). .

As the subtraction processing, a temporal subtraction (time) subtraction processing is known in addition to the above-described energy subtraction processing. This temporal subtraction processing is performed, for example, by irradiating the subject with radiation before the injection of the contrast agent to obtain one piece of radiation image information, and then irradiating the subject with the injected contrast agent with radiation, and subjecting the subject to the injected contrast agent. Obtaining radiation image information in which a specific portion (for example, a shadow of a blood vessel or the like when a human body is set as a subject) is enhanced, and subtracting the radiation image information before the injection of the contrast agent from the radiation image information after the injection of the contrast agent. Depending on the specific part of the subject (shadow such as blood vessels)
, Or a subtraction process is performed between two pieces of radiographic image information of the same subject that have been shot under the same shooting conditions with different shooting times, thereby extracting a lesion that has changed over time.

[0008]

However, since the above-described various subtraction processes have different purposes, they are merely constructed as a dedicated system for each of the subtraction processes.

However, each of the subtraction processes gives useful diagnostic information on the subject.
In making a comprehensive diagnosis, it is desired that these useful subtraction image information be simultaneously and widely utilized. In particular, with the rapid development of network technology in recent years, it has become possible to freely use various types of diagnostic information via networks even in hospitals, and it is desirable to use a large number of image information for comprehensive diagnosis. It is rare.

The present invention has been made in view of the above circumstances, and has as its object to provide an image output method and an image output system that can effectively use two or more types of available subtraction image information. It is.

[0011]

An image output method according to the present invention comprises the steps of displaying at least two types of available subtraction images among an energy subtraction image, a temporal subtraction image, and a left and right subtraction image on an image display terminal or an image printing terminal. And output them almost simultaneously.

That is, according to the image output method of the present invention, an energy subtraction image obtained based on two or more radiographic images having different energy distributions for the same subject, and two or more different imaging times for the same subject having different photographing timings are provided. Of the temporal subtraction image obtained based on the radiation image, and the left and right subtraction images obtained based on the right portion of the radiation image of the subject and the left portion substantially symmetrical thereto, at least two or more types of subtraction images are substantially simultaneously displayed. Output to an image display terminal or an image printing terminal.

Here, the left and right subtraction images are:
For example, for an image that appears approximately symmetrically on the right and left sides, such as a frontal radiographic image of the chest and a frontal radiographic image of the cervix and head, subtraction processing is performed between corresponding points of symmetry across the axis of symmetry. Means a subtraction image obtained as a result. Here, in the frontal radiation image of the chest, since there is a shadow of the heart on the left side, it is not strictly a symmetrical image, and therefore,
In the left and right subtraction images, an image of the heart and an image of an unsymmetrical structure around the heart appear, but in the diagnosis of a substantially symmetric lung field and ribs, the image of the heart and an unsymmetrical structure of the surrounding area appear. Since the images of the objects are irrelevant, the interpretation may be performed ignoring these images. Note that only the left and right subtraction images can be obtained based on a single radiation image, unlike the other subtraction images.

In the image output method of the present invention, at least two or more types of subtraction images are
Two or more radiation images having different energy distributions, two or more radiation images having different imaging times, or a radiation image in which the right part and the left part are substantially symmetric, which are the basis for acquiring these two or more subtraction images, respectively. May also be output at the same time. By comparing and interpreting the subtraction image and the original image, the positional relationship between the subtraction processing and the shadow of the structure that has disappeared due to the subtraction processing can be accurately recognized on the original radiation image, thereby further improving diagnostic performance. be able to.

When only at least two types of subtraction images are output to the image display terminal or the image printing terminal, these subtraction images are displayed on a display surface of a plurality of image display terminals or a plurality of image printing terminals different from each other. It may be output to the recording material of the terminal or a plurality of recording materials of a single image printing terminal, or may be output to the display surface of a single image display terminal or the recording material of a single image printing terminal. You may. Also, when an original radiographic image for acquiring a subtraction image is output together with these subtraction images, each of these images (each of the subtraction image and each of the original images) is displayed on a plurality of image display terminals different from each other. It may be output to a display surface of a plurality of recording materials of a plurality of image printing terminals or a plurality of recording materials of a single image printing terminal, or a display surface of a single image display terminal or a single image printing. It may be output to a recording material of a terminal.

When outputting to the display surface of a single image display terminal, the display surface of the image display terminal is divided into a plurality of display areas so that all the output images can be simultaneously observed and interpreted. Therefore, it is necessary to lay out all the images so that each image is displayed in each display area at the same time, and each image can be reduced as needed. Similarly, when outputting to a recording material of a single image printing terminal, the single recording material is divided into a plurality of recording areas so that all the outputted images can be simultaneously observed and interpreted, and each recording is performed. All images need to be laid out to record each image in the area,
Each image can be reduced as needed.

The at least two types of subtraction images to be output to the image display terminal or the image printing terminal may optionally designate an image interpreter or the like. In this case, the specified two or more types of subtraction are used. What is necessary is just to output an image.

Further, the output destination of the subtraction image, the photographing menu (subject type, body position, photographing method, etc.) when the subtraction image is photographed, information on the patient who is the subject of the subtraction image, and information on the interpreter requesting the output A combination of at least two types of subtraction images to be output may be set in advance in accordance with at least one of the information, and the subtraction image of the preset combination may be output.

An image output system according to the present invention is a system for implementing the image output method according to the present invention, and is an energy subtraction image of the same subject obtained based on two or more radiation images having different energy distributions from each other. A temporal subtraction image obtained based on two or more radiographic images of the same subject at different imaging times, and left and right obtained based on a right portion of the radiographic image of the subject and a left portion substantially symmetric to the right portion. An image output unit for outputting at least two or more types of subtraction images to an image display terminal or an image printing terminal at substantially the same time among the subtraction images.

Here, in the image output system of the present invention, the image output means includes at least two types of subtraction images and two or more types of subtraction images each having a different energy distribution as a basis for acquiring the two or more types of subtraction images. A radiation image, two or more radiation images having different imaging times from each other, or a radiation image in which the right and left portions are substantially symmetric may be output simultaneously. By comparing and interpreting the subtraction image and the original image, the positional relationship between the subtraction processing and the shadow of the structure that has disappeared due to the subtraction processing can be accurately recognized on the original radiation image, thereby further improving diagnostic performance. be able to.

When only at least two types of subtraction images are output to the image display terminal or the image printing terminal, the image output means outputs these subtraction images to the display surfaces of a plurality of different image display terminals. Alternatively, it may be output to recording materials of a plurality of image printing terminals or a plurality of recording materials of a single image printing terminal, or may be a display surface of a single image display terminal or a single image printing terminal. May be output to the recording material. Also, in the case where an original radiographic image for acquiring a subtraction image is output together with these subtraction images, the image output means also converts each of these images (each of the subtraction images and each of the original images) into a plurality of different images. The display surface of the image display terminal, the recording material of a plurality of image printing terminals, or the recording material of a single image printing terminal may be output to a plurality of recording materials, or the display surface of a single image display terminal. Alternatively, it may be output to a recording material of a single image printing terminal.

The image output means can convert only the two or more types of subtraction images or the original radiation image together with these subtraction images into a display surface of a single image display terminal or a recording material of a single image printing terminal. , The two or more types of subtraction images, or the two or more types of subtraction images and the original radiation image are displayed on a display surface of a single image display terminal or a single image. Layout setting means for laying out the recording material of the printing terminal so that it can be output, wherein the image output means outputs a subtraction image or a subtraction image and an original radiation image in the layout set by the layout setting means What should be done.

[0023] Further, it is possible to adopt a configuration further comprising output image designating means for designating at least two or more types of subtraction images to be output to the image display terminal or the image printing terminal. Means
What is necessary is just to output two or more types of subtraction images designated by the output image designation means.

Further, at least one of an output destination of the subtraction image, a photographing menu at the time of photographing the subtraction image, information on a patient who is a subject of the subtraction image, and information on a radiogram interpreter requesting output is provided. Accordingly, the apparatus further comprises a correspondence table in which a combination of the at least two or more types of subtraction images to be output is set in advance, and wherein the image output means outputs the two or more kinds of subtraction images set according to the correspondence table. May be output. This correspondence table may be provided on the terminal (image display terminal and / or image printing terminal) of the output destination.

[0025]

According to the image output method and the image output system of the present invention, two or more types of available subtraction images among the energy subtraction image, the temporal subtraction image, and the left and right subtraction images are displayed on the image display terminal or the image display terminal. By outputting substantially simultaneously to the printing terminal, a plurality of types of subtraction images, which are useful diagnostic images, can be referred to at the same time.
Prevents oversight of lesions, enables multifaceted diagnosis,
Overall diagnostic performance can be improved.

When the image output system is connected to a network, the plurality of types of subtraction images scattered on the network are collectively output to each image display terminal or each image printing terminal on the network. Therefore, the range in which the diagnostic information (such as a subtraction image) is more effectively used can be expanded.

[0027]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a specific embodiment of an image output system for implementing an image output method according to the present invention will be described.

FIG. 1 is a diagram showing an embodiment of the image output system of the present invention.

First, the database 40 stores image data representing a large number of radiation images for a large number of patients. An ID number is uniquely assigned to each patient, and a large number of radiation images for the same patient are each assigned the same ID number and a unique image number for each image. For each image number, whether the image was taken for energy subtraction processing, in addition to the site information indicating the subject at the time the image was shot, the body position information indicating the shooting direction, the date information indicating the shooting date, and the like Information indicating whether or not the bone image or the soft image after the energy subtraction processing, information indicating that the time-lapse subtraction image has been subjected to subtraction processing between two radiation images of the same subject at different imaging times, Information indicating that the image has been subjected to predetermined emphasis processing (such as frequency emphasis), and indicates that the image is a left / right subtraction image obtained by performing a subtraction process between a right portion and a substantially symmetric left portion. Information and the like are associated with each other.

Six CRT terminals 5 for displaying images
1, 52, 53, 54, 55 and 56 are all arranged side by side in one examination room.

The image output system shown in the figure is composed of the latest chest radiographic image (original image) P1 of the patient having the designated ID number input from the outside, and the energy subtraction image (soft image P5 and bone image) having the same ID number. Image P
6), a past image P2 photographed earlier in time series than the original image P1, a processed image P3 obtained by subjecting the original image P1 to frequency emphasis processing, and a temporal subtraction of the original image P1 and the past image P2. The image P4 is read from the database 40 in accordance with the ID number and information associated with each image, and these images are read from an external CR.
Image output means 1 for outputting to each of T terminals 51 to 56
0 is provided.

Here, in detail, the image output means 10 sets the original image P1 on the CRT 51, the past image P2 on the CRT 52,
The processed image P3 is on the CRT 53, the temporal subtraction image P3 is on the CRT 54, the soft part image P5 is on the CRT 55,
In order to display the bone image P6 on the CRT 56,
Each image is output to each of the CRT terminals 51 to 56.

If the patient with the specified ID number is a new patient and the past image P2 does not exist in the database 40, the image output means 10 outputs the past image P2 and the temporal subtraction image P3 to the corresponding CRT terminal. Machine 5
No output to 2 and 53. In this case, as the error processing, the original image P1 is used instead of the temporal subtraction image P3.
May be output to the CRT terminal 53.

Further, in the above embodiment, one of the two radiographic images simultaneously taken for energy subtraction processing is used as the original image P1, but this original image P1 is simply taken as one image. In the case of the image, the soft part image P5 and the bone part image P6, which are energy subtraction images, do not exist in the database 40. Therefore, in this case, the image output means 10
The soft part image P5 and the bone part image P are displayed on the RT terminals 55 and 56.
6 is output, and instead of these images, the left and right subtraction images P7 may be output to the CRT terminal 55 as error processing. As another error processing, when no subtraction image exists, only the existing image may be output.

Here, the left and right subtraction images P7 will be described with reference to FIG. FIG. 2A is a diagram showing a chest radiographic image (original image) P1 in which a right side portion PR and a left side portion PL of a subject appear approximately symmetrically with respect to a center axis C. Has an abnormal shadow P. The radiation image P1 appearing symmetrically to the left and right in this manner.
, The left and right subtraction images P7 give very useful information. That is, for example, as shown in FIG.
L is folded back to the right side portion PR and overlapped on the right side portion PR ((3) in the same figure), and the overlapping left side portion PL and right side portion PR are overlapped.
Left and right subtraction images P7 obtained by performing the subtraction processing between the pixels corresponding to (4) in FIG.
Is an image in which only a portion (for example, an abnormal shadow portion P) having a different density distribution between the left portion PL and the right portion PR is extracted. If the image P1 has not been subjected to the subtraction processing, this abnormal shadow may be overlooked. P can be found accurately. The abnormal shadow P appearing in the original image P1 appears as P in the frequency emphasis processing image P3 and the soft part image P5, appears as P 'in the past image P2, and appears as P "in the temporal subtraction image P4. .

As described above, according to the image output system provided with the image output means 10, a plurality of Cs installed in the examination room are provided.
A plurality of types of subtraction images are displayed on the RT terminal. Therefore, in the examination room, the radiologist can simultaneously refer to a plurality of subtraction images, which are useful diagnostic images, and abnormal shadows P, which are lesions, appear on the plurality of subtraction images (P, P ′ or P). Therefore, it is possible to prevent the abnormal shadow P from being overlooked, to enable multi-faceted diagnosis, and to improve the overall diagnosis performance.

The image output system of the above embodiment is
Although a subtraction image is output to a CRT terminal, the image output system of the present invention is not limited to an image output system that outputs an image to a recording material such as a laser printer, but is not limited to a CRT terminal. The terminal may be an output destination.

The combination of a plurality of subtraction images output by the image output means 10 is not limited to the above-described embodiment, but may be an energy subtraction image P5 or P6, or a left and right subtraction image P7.
Any one of the subtraction image P4 and the temporal subtraction image P4
Any combination may be used as long as there is at least one. Further, the combination of images to be output is not limited to the one set in advance as in the above-described embodiment, and may be an individual designation by an image interpreter. .

FIG. 3 shows a second embodiment of the image output system of the present invention.
FIG. 13 is a diagram illustrating a configuration of the embodiment of the present invention. Instead of outputting a plurality of subtraction images read from the database 40 so as to be displayed on separate CRT terminals 51 to 56, respectively, a single CRT terminal 60 is used. It differs from the image output system according to the embodiment shown in FIG. 1 in that a plurality of subtraction images are output so as to be displayed.

That is, the image output system shown in FIG. 3 reads out the four images of the original image P1, the left and right subtraction images P7, the soft part image P5, and the bone part image P6 from the database 40, and sets the layout setting means to be described later. These four images laid out by the CRT 20
The image output means 10 for outputting to the terminal device 60 and the number (four in the present embodiment) of images read out by the image output means 10 are simultaneously displayed on the display surface R of a single CRT 60 which is the output destination of the image. 4 read as appropriate to
And a layout means 20 for laying out one image P1, P7, P5, P6.

In this embodiment, the layout setting means 20 changes the display surface R of the CRT 60 as shown in FIG.
Four display areas R1, R2, R, which are the number of images to be output
3 and R4, and each display area R1, R2, R3, R
4 shows the original image P1 and the left and right subtraction images P, respectively.
7, the soft part image P5 and the bone part image P6 are laid out so as to be displayed separately.

According to the image output system of the embodiment configured as described above, a plurality of types of subtraction images are displayed on a single CRT terminal installed in the examination room.
Therefore, in the examination room, the interpreter can simultaneously refer to a plurality of subtraction images, which are useful diagnostic images, and overlook the abnormal shadow P because the abnormal shadow P, which is a lesion, appears on the plurality of subtraction images. Can be prevented, multi-dimensional diagnosis can be performed, and overall diagnostic performance can be improved.

In the image output system of this embodiment, the combination of the plurality of subtraction images output by the image output means 10 is not limited to the above-mentioned four, but may be the energy subtraction image P5 or P6, the left and right subtraction images. Any combination may be used as long as it is any two or more of the image P7 and the temporal subtraction image P4. The combination of images to be output is not limited to the preset one as in the above-described embodiment. May be individually specified by the user. When there is no subtraction image of the type to be output, these subtraction images may not be output as error processing, or another type of subtraction image may be output.

FIG. 4 is a diagram showing an embodiment of the image output system of the present invention connected to the medical image network 200. The illustrated medical image network includes a database 40, a CRT terminal 60, an image output system of the present embodiment, and an unillustrated image forming modality (for example, a CT apparatus, an MRI apparatus, and a CR (computer radiography system) apparatus) on the network 200. Are connected.

The illustrated image output system has the same image output means 10 as the image output system of the embodiment shown in FIG.
And the layout setting means 20 further comprises an output image specifying means 30 for inputting an instruction to respecify two or more types of subtraction images to be output to the CRT terminal 60 later.

That is, a plurality of images including two or more types of subtraction images of a combination preset in the image output means 10 are read from the database 40 and input to the image output means 10 via the network 200. The layout setting unit 20 sets a layout so that these subtraction images and the like are simultaneously displayed on the display surface of the CRT terminal 60 that has requested display, and the subtraction images and the like laid out by the set layout are A plurality of images including a plurality of subtraction images input from the image output means 10 to the CRT terminal 60 via the network 200 and laid out on the display surface of the CRT terminal 60 are displayed. Displays additional subtraction images and other images When the user wants to make an input, the user inputs the designation of a subtraction image or the like to be additionally displayed to the output image designation unit 30, and the input designation is input to the image output unit 10 via the network 200. The image output means 10 reads the designated subtraction image or the like from the database 40 via the network 200, and reads the newly read subtraction image together with the previously read default subtraction image or the like together with the layout setting means 20 or the like. Is output to the CRT terminal 60 via the network 200 in the layout set by the.

By this operation, a plurality of subtraction images including the additionally designated subtraction image are simultaneously displayed on the display surface of the CRT terminal 60.

As a result, an interpreter who observes and interprets the image displayed on the CRT terminal 60 can observe and interpret a plurality of images including a plurality of subtraction images displayed on the CRT terminal 60 at the same time. Since the abnormal shadow, which is a part, appears on the plurality of subtraction images, it is possible to prevent the abnormal shadow P from being overlooked, enable a multifaceted diagnosis, and improve the overall diagnostic performance.

In the figure, the output image designating means 3
Although 0 is described together with the CRT terminal 60, it is configured together with the image output means 10 and the layout setting means 20 as a part of an image output system surrounded by a broken line.

As shown in FIG. 5, instead of the output image designating means 30, the output destination of the subtraction image, the photographing menu when the subtraction image was taken, information on the patient who is the subject of the subtraction image, and the output are provided. The apparatus further includes a correspondence table 35 in which a combination of two or more types of subtraction images to be output is set in advance according to at least one piece of information about the requested interpreter. May output two or more types of subtraction images set according to the above.

[Brief description of the drawings]

FIG. 1 is a diagram showing an embodiment of an image output system of the present invention.

FIG. 2 is a diagram illustrating left and right subtraction images.

FIG. 3 is a diagram showing another embodiment of the image output system of the present invention (part 1).

FIG. 4 is a diagram showing another embodiment of the image output system of the present invention (part 2).

FIG. 5 is a diagram showing another embodiment of the image output system of the present invention (part 3).

[Explanation of symbols]

 10 Image output means 20 Layout setting means 30 Output image designation means 35 Correspondence table 40 Database 51-56,60 CRT terminal 200 Network

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI theme coat ゛ (reference) G06T 1/00 A61B 6/00 350S H04N 1/387 G06F 15/62 390A F-term (reference) 4C093 AA27 CA18 CA50 DA02 DA03 DA04 EE01 EE09 FF09 FF32 FF34 FG04 FG08 FH08 5B021 AA01 BB02 EE01 EE02 5B057 AA08 CE03 CE08 DA16 DB02 DB09 DC32 5C076 AA17 AA19 5E501 AA25 BA05 CA03 DA11 FA14 FA23

Claims (13)

[Claims] An energy subtraction image of the same subject obtained based on two or more radiation images having different energy distributions from each other, and an energy subtraction image of the same subject obtained based on two or more radiation images of different imaging times different from each other. The temporal subtraction image, and at least two or more types of subtraction images of the left and right subtraction images obtained based on the right portion of the radiation image of the subject and the left portion substantially symmetrical to the subtraction image are simultaneously displayed on the image display terminal or the image. An image output method for outputting to a printing terminal. 2. At least two or more types of subtraction images, two or more radiation images having different energy distributions as a basis for acquiring these two or more types of subtraction images, and two or more different radiographic images having different imaging times. 2. The image output method according to claim 1, further comprising outputting a radiation image or a radiation image in which the right and left portions are substantially symmetric. 3. The display surface of an image display terminal, wherein the at least two or more types of subtraction images or the at least two or more types of subtraction images and a radiation image as a basis for acquiring the respective subtraction images are different from each other. 3. The image output method according to claim 1, wherein the image is output to a recording material of a different image printing terminal. 4. The display screen of the image display terminal, wherein the at least two or more types of subtraction images or the at least two or more types of subtraction images and a radiation image on which the respective subtraction images are obtained are provided. Or outputting to a recording material of the image printing terminal.
Image output method described. 5. Specifying at least two or more types of subtraction images to be output, and
The image output method according to any one of claims 1 to 4, wherein at least three types of subtraction images are output. 6. An output destination of the subtraction image, a shooting menu when the subtraction image is shot,
A combination of the at least two types of subtraction images to be output is set in advance in accordance with at least one of information on a patient who is a subject of the subtraction image and information on an interpreter who requests output. 5. The method according to claim 1, wherein:
The image output method according to any one of the above. 7. An energy subtraction image of the same subject obtained based on two or more radiation images having different energy distributions from each other, and an energy subtraction image of the same subject obtained based on two or more radiation images of different imaging times different from each other. The temporal subtraction image, and at least two or more types of subtraction images of the left and right subtraction images obtained based on the right portion of the radiation image of the subject and the left portion substantially symmetrical to the subtraction image are simultaneously displayed on the image display terminal or the image. An image output system comprising image output means for outputting to a printing terminal. 8. The image output means according to claim 2, wherein
With two or more types of subtraction images, two or more radiation images having different energy distributions as a basis for acquiring these two or more types of subtraction images, two or more radiation images having different imaging times, or the right portion. 8. The image output system according to claim 7, wherein the image output system outputs a radiation image whose left portion is substantially symmetric. 9. The image output means according to claim 1, wherein
A plurality of types of subtraction images, or the at least two types of subtraction images and a radiation image on which the respective subtraction images are respectively obtained, on a display surface of an image display terminal different from each other, or on an image printing terminal different from each other. 9. An output to a recording material of a machine.
Image output system as described. 10. The display screen of the image display terminal, wherein the at least two or more types of subtraction images, or the at least two or more types of subtraction images and a radiation image on which each of the subtraction images is obtained are provided. Or these two or more types of subtraction images, or these two or more types of subtraction images and the radiation image on which the respective subtraction images are to be obtained, so as to output them to one recording material of the image printing terminal. Layout setting means for laying out the image, wherein the image output means has a layout set by the layout setting means;
9. The image output system according to claim 7, wherein the image output system outputs at least two types of subtraction images, or at least two types of subtraction images and the radiation image. 11. An image processing apparatus further comprising: output image specifying means for specifying the at least two or more types of subtraction images to be output, wherein the image output means outputs the two or more types of subtraction images specified by the output image specifying means. 8. An output device according to claim 7,
11. The image output system according to any one of items 1 to 10. 12. An output destination of the subtraction image,
The at least two or more types to be output in accordance with at least one of a shooting menu when the subtraction image is shot, information on a patient who is the subject of the subtraction image, and information on an interpreter who requests output. Further comprising a correspondence table in which combinations of subtraction images are set in advance,
11. The image output system according to claim 7, wherein the image output unit outputs the two or more types of subtraction images set according to the correspondence table. 13. The output destination of the subtraction image,
The at least two or more types to be output in accordance with at least one of a shooting menu when the subtraction image is shot, information on a patient who is the subject of the subtraction image, and information on an interpreter who requests output. The image display terminal and / or the image printing terminal are provided with a correspondence table in which a combination of the subtraction images is set in advance, and the image output means outputs the two or more kinds of subtraction images set according to the correspondence table. The image output system according to any one of claims 7 to 10, wherein the image output system outputs an image.