Radiation imaging system, image processing device, radiation image display method, image processing method, and program

Abstract

To reduce the operational burden of changing parameters of captured images across multiple imaging modes.SOLUTION: A radiation imaging system includes: an image processing unit that generates a display image by reflecting parameters to a radiation image; a parameter change unit that changes the parameters; and a determination unit that individually determines whether or not the parameters are inherited and reflected in a case of generating a second display image for the multiple parameters reflected in a first display image based on a first radiation image when the second display image based on a second radiation image acquired in a second imaging mode different from a first imaging mode is displayed on a display unit after the first radiation image is acquired in the first imaging mode among the multiple imaging modes.SELECTED DRAWING: Figure 5

Description

Technical Field

[0001] The present disclosure relates to a radiographic imaging system, an image processing apparatus, a method for displaying a radiographic image, an image processing method, and a program.

Background Art

[0002] Conventionally, there has been known a radiographic imaging system that irradiates a subject with radiation (e.g., X-rays) and detects the intensity distribution of the radiation that has passed through the subject to capture a radiographic image of a target part of the subject. In an examination using radiation (radiation examination), generally, examination information including a imaging site, an imaging method, etc. is set in advance by doctors in each medical department. Then, based on the set examination information, radiographic imaging is performed by a radiographer using a radiographic imaging system.

[0003] In radiographic imaging, the imaging mode may be switched according to the purpose of imaging, and there are cases where a still image is captured or a moving image is captured. At this time, when images captured in a plurality of imaging modes are switched and displayed, the settings of parameters regarding the display method and the image processing method often differ before and after the switching of the imaging mode. For this reason, when the imaging mode is switched, if diagnosis is performed using the images obtained before and after the switching, for example, the radiographer is required to take the trouble of changing parameters regarding the display method or the like to match one side. On the other hand, in Patent Document 1, a configuration is disclosed in which, when switching and displaying images captured in a plurality of imaging modes, it is determined based on an imaging protocol whether to inherit the setting of parameters regarding the display method or the like of the image before switching to the image after switching.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Disclosure of the Invention

Problems to be Solved by the Invention

[0005] For example, for an image taken in a certain shooting mode, when changing the settings for enlargement or inversion during display and then shooting in a different shooting mode, there may be a case where only the change in the enlargement setting is desired to be carried over. Conventionally, in order to determine whether to carry over all the settings at once, it has not been possible to carry over only the change in enlargement, and it has been necessary to change the parameters again, which may cause problems such as an increase in the diagnosis time and an increase in the operation burden.

[0006] In view of the above problems, one of the objectives of the present disclosure is to reduce the operation burden related to the change of parameters for the captured image among a plurality of shooting modes.

[0007] Note that not limited to the above objective, the effects brought about by each configuration shown in the embodiments for implementing the invention described later, which are effects that cannot be obtained by the conventional technology, can also be positioned as one of the other objectives of the disclosure of this specification.

Means for Solving the Problems

[0008] In order to solve the above problems, a radiation imaging system according to an aspect of the present disclosure is a radiation imaging system that displays a display image generated based on radiation images obtained by a plurality of shooting modes according to a predetermined imaging protocol on a display unit, an image processing unit that generates the display image by reflecting parameters for the radiation image; a parameter change unit that changes the parameters; a determination unit that individually determines whether to carry over and reflect a plurality of the parameters reflected in a first display image based on the first radiation image when causing the display unit to display a second display image based on a second radiation image obtained by a second shooting mode different from the first shooting mode among the plurality of shooting modes; and includes.

Advantages of the Invention

[0009] According to one aspect of the present disclosure, it is possible to reduce the operation burden related to the change of parameters of the captured image among a plurality of shooting modes.

Brief Description of the Drawings

[0010]

Figure 1

Figure 2

Figure 3(a)

Figure 3(b)

Figure 3(c)

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10(a)

Figure 10(b)

Figure 11

Figure 12(a)

Figure 12(b)

Embodiments for Carrying Out the Invention

[0011] Hereinafter, exemplary embodiments for carrying out the present disclosure will be described with reference to the accompanying drawings. Note that the dimensions, materials, shapes, relative positions of components, etc. described in the following embodiments are arbitrary and can be changed according to the configuration of the apparatus to which the present disclosure is applied or various conditions. Also, in the drawings, the same reference numerals are used between the drawings to indicate elements that are the same or functionally similar. Furthermore, the following embodiments do not limit the invention according to the claims, and not all combinations of the features described in the present embodiments are essential in the present disclosure.

[0012] In the following embodiments, a radiographic imaging system using X-rays as an example of radiation will be described. However, the radiographic imaging system according to the present disclosure may use other types of radiation. Here, the term "radiation" can include, for example, electromagnetic radiation such as X-rays and γ-rays, and particle radiation such as α-rays, β-rays, particle beams, proton beams, heavy ion beams, and neutron beams.

[0013] (First Embodiment) <Configuration of Radiographic Imaging System> Hereinafter, with reference to FIGS. 1 to 6, a radiographic imaging system, an image processing apparatus, a method for displaying a radiographic image, and an image processing method according to a first embodiment of the present disclosure will be described. FIG. 1 is a diagram showing a schematic configuration example of a radiographic imaging system according to a first embodiment of the present disclosure. As shown in FIG. 1, the radiographic imaging system according to the present embodiment includes a radiographic imaging apparatus 1 and a HIS (Hospital Information System) 11 that manages the progress of an examination. Further, the radiographic imaging system according to the present embodiment includes a RIS (Radiology Information System) 12 that transmits an examination order to the radiographic imaging apparatus 1. Furthermore, a PACS (Picture Archiving and Communication Systems) 13 that manages radiographic images and a printer 14 that prints out radiographic images are connected to the radiographic imaging system according to the present embodiment.

[0014] The HIS 11 is a hospital management system and includes a server that manages accounting information. When performing a radiographic examination, an operator inputs an examination instruction from a terminal (input unit) of the HIS 11. Then, the HIS 11 transmits request information to the radiology department of the hospital that is the destination of the radiographic examination request. This request information is referred to as an examination order. The examination order includes information such as the name of the department of the requester, the examination ID, the examination item, and patient information (subject information) regarding the subject.

[0015] When the radiology department receives an examination order from RIS12, it adds imaging information related to radiography (such as imaging site information, imaging direction information, and procedure information) as an imaging protocol to the examination order and transmits it to the radiography apparatus 1. The radiography apparatus 1 performs radiography according to the received examination order. The radiography apparatus 1 acquires the captured radiographic image, generates examination information associating the radiographic image with the examination order, and outputs it together with the radiographic image.

[0016] PACS13 is a server mainly for image management. The inspection work of radiographic images, detailed post-processing, and diagnostic work are carried out by a high-definition monitor connected to PACS13. In this way, the radiographic image acquired by the radiography apparatus 1 is transmitted to PACS13.

[0017] In addition, the information on the implementation of the examination in the radiography apparatus 1 (such as image ID and imaging date and time) is transmitted to HIS11. The transmitted implementation information is used not only for the progress management of the examination but also for the accounting process after the examination.

[0018] The radiography apparatus 1, HIS11, RIS12, PACS13, and printer 14 are connected via a network 15 composed of, for example, a LAN (Local Area Network) or a WAN (Wide Area Network).

[0019] Each of these devices includes one or more computers. The computer is provided with main control means such as a CPU, and storage means such as a ROM (Read Only Memory) and a RAM (Random Access Memory). The computer may also be provided with communication means such as a network card, and input / output means such as a keyboard, a display, and a touch panel. These respective constituent means are electrically connected by a bus or the like and are controlled by the main control means executing a program stored in the storage means.

[0020] In this embodiment, as shown in FIG. 1, a radiation imaging apparatus 1 that performs radiation imaging is installed in an imaging room 100. Also installed in the imaging room 100 are a radiation generator control unit 4 that controls a radiation generator 8 to generate radiation, a radiation detector 7 that detects radiation transmitted through a subject 10 to capture a radiation image, and an imaging table 6. In this embodiment, the radiation imaging apparatus 1 includes a display unit 2 that displays radiation images and various types of information, an operation unit 3 that an operator operates, a control unit 5 that controls each component, and a display control unit 16 that controls what is to be displayed on the display unit 2.

[0021] The radiation generator control unit 4 sets radiation generation conditions in the radiation generator 8 and controls the radiation generator 8. The radiation generator 8 functions as a radiation source that generates radiation. The radiation generator 8 is realized by, for example, an X-ray tube and irradiates the subject 10 (for example, a specific part of the subject) with radiation. The radiation generator 8 can irradiate a desired irradiation range with radiation. A diaphragm (not shown) that shields radiation is installed on the irradiation surface of the radiation generator 8. The operator can adjust the irradiation range of the radiation irradiated from the radiation generator 8 by controlling the diaphragm that shields radiation.

[0022] The radiographic system includes a radiation detector 7 that detects radiation irradiated from a radiation generation unit 8. The radiation detector 7 detects the radiation that has passed through the subject 10 and outputs image data corresponding to the radiation. Note that the image data can be referred to as a radiation image. Specifically, the radiation detector 7 detects the radiation that has passed through the subject 10 as electric charges corresponding to the amount of transmitted radiation. For example, the radiation detector 7 uses a direct conversion type sensor that directly converts radiation such as a-Se that converts radiation into electric charges, or an indirect type sensor that uses a scintillator such as CsI and a photoelectric conversion element such as a-Si. The radiation detector 7 generates image data by performing A / D conversion on the detected electric charges and stores it in a storage unit (not shown). The radiation detector 7 can attach image information (image ID, shooting date and time, and transfer status of image data) to the image data and transfer it to the radiographic apparatus 1 together with the image data.

[0023] The display unit 2 is realized by, for example, a liquid crystal display or the like, and displays various information to an operator (for example, a radiographer or a doctor). The operation unit 3 is composed of, for example, a mouse or operation buttons, and inputs various instructions from the operator to each component. Note that the display unit 2 and the operation unit 3 may be realized as a touch panel in which they are integrated.

[0024] In the present embodiment, the control unit 5 of the radiographic apparatus 1 is connected to the radiation detector 7 via a wireless LAN. Image data, control signals, and the like are transmitted and received between the control unit 5 and the radiation detector 7. That is, the image data stored in the radiation detector 7 by radiographic imaging is output (transferred) to the control unit 5 via the wireless LAN.

[0025] <Description of the radiographic system> The radiation imaging system according to the first embodiment of the present disclosure will be described in detail with reference to FIG. 2. Here, the radiation imaging system of the present embodiment can perform radiation imaging in a plurality of imaging modes according to an imaging protocol. The plurality of imaging modes can include, for example, a still image imaging mode, a moving image imaging mode, and a fluoroscopic imaging mode. Further, the plurality of imaging modes can also include a long image imaging mode and a long moving image imaging mode, and the same effects can be obtained by applying the embodiments of the present disclosure to each imaging mode.

[0026] The radiation imaging apparatus 1 according to the present embodiment includes a control unit 5 that performs image processing on the radiation image output from the radiation detector 7 and generates an image. The control unit 5 has an application function that operates on a computer. The control unit 5 controls the operation of the radiation detector 7 and can output a radiation image to the display unit 2 via the display control unit 16 or output a graphical user interface (GUI). That is, the control unit 5 is connected to a display control unit 16 that can display a thumbnail of a medical image and a thumbnail of a processed image on the display unit 2. Further, the display control unit 16 also functions as a reception means for receiving an instruction for image editing of the medical image displayed on the display unit 2, and can perform image editing such as cropping of the image and annotation based on an instruction from an operator via the control unit 5, for example. Here, although the display control unit 16 is shown as a separate body from the control unit 5, the display control unit 16 may be included in the control unit 5.

[0027] As illustrated in FIG. 2, the control unit 5 includes a photographing control unit 21, an image processing unit 22, an examination information holding unit 23, an examination management unit 24, and an output unit 25. The photographing control unit 21 controls the photographing of the radiation detector 7. The image processing unit 22 performs image processing on the radiation image obtained by photographing. The examination information holding unit 23 stores various information such as the radiation image output from the radiation detector 7, an examination order, an imaging protocol, and an imaging method. The examination management unit 24 manages examination information in which a radiation image and an examination order are associated. The output unit 25 outputs the generated image object to an external device such as a PACS 13 and a printer 14.

[0028] Further, for each of a plurality of shooting modes, the control unit 5 includes a still image mode parameter holding unit 28, a moving image mode parameter holding unit 29, and a fluoroscopy mode parameter holding unit 30 in order to hold parameters corresponding to the shooting mode. Further, the control unit 5 includes a parameter changing unit 27 that changes various parameters of the medical image displayed on the display unit 2 and stores the changed parameters in the parameter holding unit of the corresponding mode. Further, the control unit 5 includes a carry-over determination unit 26 that determines whether or not to carry over the parameters reflected in the immediately previous shot image to the newly shot image when the newly shot image is to be displayed on the display unit.

[0029] The examination information holding unit 23 stores examination information managed by the examination management unit 24, a shooting protocol, a shooting method, a radiation image output from the radiation detector 7, and various information necessary for examination management. Further, the examination information holding unit 23 stores a shooting protocol associated with an examination order together with identification information for identifying the shooting protocol.

[0030] The examination management unit 24 manages a shooting protocol in which a shooting method, shooting conditions, image processing conditions, etc. are defined, associated with an examination order. For example, when generating examination information with the radiation imaging apparatus 1, the examination management unit 24 can associate the subject information and the shooting protocol input from the operation unit 3 and create new examination information. On the other hand, when an examination is requested from the RIS 12, the examination management unit 24 extracts the shooting protocol stored in the examination information holding unit 23 using the identification information of the shooting protocol associated with the received examination order. The examination management unit 24 associates the extracted shooting protocol with the examination order and creates new examination information. The examination information newly created by the examination management unit 24 is stored in the examination information holding unit 23. Further, the examination management unit 24 associates the captured image with the processed image using the attached information attached to the processed image and the identification information of the captured image. The created information is stored in the examination information holding unit 23.

[0031] The imaging control unit 21 transmits a transfer request signal for requesting the transfer of the radiation image stored in the radiation detector 7 to the radiation detector 7, and receives the radiation image output from the radiation detector 7. The imaging control unit 21 manages the received radiation image together with the radiation detector information regarding the radiation detector 7. Further, the imaging control unit 21 associates the radiation image with the inspection information managed by the inspection management unit 24 in relation to the imaging protocol.

[0032] The image processing unit 22 performs image processing on the radiation image using the imaging protocol and the image information obtained from the imaging control unit 21. The radiation image processed here is displayed on the display unit 2 or output to an external device from the output unit 25. The image processing unit 22 can perform image processing for adjusting the image itself, such as brightness and contrast. Further, the image processing unit 22 can also perform processing such as cropping and annotation on the radiation image with adjusted brightness and contrast.

[0033] Note that the configuration of the radiation imaging system described above with reference to FIGS. 1 and 2 is an embodiment of the present disclosure, and the arrangement of the illustrated configuration and the like can be appropriately changed. For example, in the example shown in FIG. 1, various devices are connected to the radiation imaging apparatus 1 via the network 15, but the radiation imaging apparatus 1 does not necessarily need to be connected to such devices. The diagnostic image may be output to a portable medium such as a DVD and input to various devices via the portable medium. Also, this network 15 may be configured by wire or partially configured by a wireless signal transmission path.

[0034] <Inspection flow> Here, in the inspection by the radiation imaging system shown in FIG. 1, an example of the processing procedure for actually taking a radiation image will be described. First, based on an inspection request form or an inspection request from the RIS 12, the operator inputs patient information and inspection information to the radiation imaging apparatus 1. At this time, the patient information includes the patient name, patient ID, etc., and the inspection information includes imaging information that defines the content of the imaging to be performed on the patient.

[0035] Under the control of the display control unit 16, the radiographic apparatus 1 causes the display unit 2 to display a new examination input screen as illustrated in FIG. 3(a). As shown in FIG. 3(a), the new examination input screen includes a patient information input area 101, a patient information confirmation button 102, and a requested examination list 103. Further, the new examination input screen is configured to include a patient information display area 104, a radiographic information display area 105, a radiographic information input button 106, and an examination start button 107.

[0036] The requested examination list 103 arranges and displays the examinations received from the RIS 12 in a list. When the operator selects any examination from the requested examination list 103 using, for example, a cursor (not shown), patient information (patient ID, patient name, date of birth, etc.) corresponding to the selected patient is displayed in the patient information display area 104 as shown in FIG. 3(b). Here, it is assumed that the examination ID O003 is selected. In the radiographic information display area 105, the examination ID is displayed, and in the area immediately below it, the radiographic information corresponding to the examination ID is displayed. The radiographic information is received from the RIS 12 as described above. In the example of FIG. 3(b), radiographic method buttons 109 (front chest button 109a, side chest button 109b) corresponding to the radiographic information are arranged.

[0037] In this embodiment, in response to the pressing of the radiographic information input button 106, a radiographic information input area 108 is displayed as shown in FIG. 3(c), and a radiographic method can be further added. In the example shown in FIG. 3(c), a plurality of radiographic method selection buttons (thumbnails 114) are displayed in the radiographic information input area 108, and the radiographic method can be added by selecting these. The radiographic methods added as described above are displayed in the radiographic information display area 105 side by side with the front chest button 109a and the side chest button 109b. Each radiographic method displayed in the radiographic information input area 108 as a radiographic method list is associated with a radiographic method ID.

[0038] After the operator checks the patient information and the imaging information, the operator presses the examination start button 107. Thereby, the examination to be performed is determined. In accordance with the pressing of the examination start button 107, the display control unit 16 causes the display unit 2 to display a imaging screen as shown in FIG. 4. Note that, in FIG. 4, the imaging screen shows an example of a screen used during the radiographic imaging of a subject.

[0039] In the present embodiment, the imaging screen illustrated in FIG. 4 basically has a display area similar to the new examination input screen described with reference to FIG. 3(a) or the like. As display areas newly added to the imaging screen, as shown in FIG. 4, there are an image display area 110, a message area 111, an image processing setting area 112, and an examination end button 113. In the image display area 110, for example, a radiograph taken or an image after parameter changes can be displayed. In the message area 111, a message can be displayed to notify the operator of the state of the radiation imaging apparatus 1, for example, that the imaging preparation is complete. In the image processing setting area 112, for example, as shown in the drawing, operation buttons for setting the contrast and brightness, which are parameters of the radiograph displayed in the image display area 110, can be displayed. Also, as parameters of the radiograph, for example, instruction buttons 120, 121, 122, 123 for rotation, inversion, cropping, annotation, etc. of the displayed image can also be displayed together. Further, when it is determined that the displayed image is not appropriate, a reimaging button 124 for prompting the radiation imaging apparatus 1 to reimage the subject can also be displayed.

[0040] When the imaging screen is displayed, the imaging method button (109a in the illustrated example) arranged at the uppermost position within the imaging information display area 105 is in the selected state by default. Accordingly, the control unit 5 of the radiation imaging apparatus 1 transmits the imaging conditions (tube voltage, tube current, irradiation time, etc.) set corresponding to the imaging method button (imaging method) to the radiation generator control unit 4. Then, the control unit 5 controls the radiation detector 7 in accordance with the imaging conditions to prepare for imaging. When the preparation is complete, the radiation imaging apparatus 1 transitions to the imaging-enabled state. At this time, a "Ready message" indicating the imaging-enabled state is displayed in the message area 111.

[0041] Subsequently, the operator checks the imaging method and performs imaging settings and patient (subject) positioning. When a series of imaging preparations are completed, after the operator checks that it is in the imaging-enabled state by referring to the message area 111, the operator presses a radiation irradiation switch (not shown). Then, the radiation imaging apparatus 1 irradiates radiation toward the subject (a specific part of the patient) by the radiation generation unit 8 and causes the radiation detector 7 to detect the radiation that has passed through the subject. Thereby, the radiation image is captured. When the imaging is completed, parameter saving processing and display processing of the captured image are performed, but the flow of these processes will be described later.

[0042] The operator performs shooting for all shooting methods within the shooting information display area 105. When all shootings are completed, the operator presses the inspection end button 113. Thereby, a series of inspections are completed. The radiation imaging apparatus 1, in the control unit 5, after attaching its inspection information, shooting conditions, etc. as supplementary information, outputs the image object to, for example, the PACS 13, the printer 14, or the ROM in its own apparatus. Here, regarding the processed image, for example, it can be set for each shooting method whether to output it to the management server in advance, and only the processed images of the shooting methods for which the output is valid may be output. That is, in the present embodiment, the processed image is output to the image management server based on the setting of whether to enable the output of the processed image to the image management server. To the HIS 11, inspection execution information for notifying the end of the inspection is transmitted. The identifier of the processed image received until the end of the inspection is included in the inspection execution information as an object within the inspection. After the above processing is completed, the display control unit 16 causes the display unit 2 to display the new inspection input screen again. Thereby, it becomes possible to execute radiation imaging for the next patient.

[0043] <Flow of parameter saving for captured images> When shooting is completed, the control unit 5 acquires the shot image from the radiation detector 7 and also acquires parameters from any one of the parameter holding units 28, 29, 30. The determination method for which parameter holding unit to acquire parameters from will be described later. In the present embodiment, parameters include inversion, enlargement, reduction, panning, black-and-white inversion, brightness, and contrast, etc. Also, in the embodiments described below, the above parameters are described as the application targets of the present disclosure, but the application targets are not limited to the above parameters, and for example, parameters such as noise processing and sharpening processing can also be targeted.

[0044] In this embodiment, the image processing unit 22 performs image processing on the acquired captured image. When the image processing is completed, the display control unit 16 causes the image processing unit to display the captured image that has been processed in the image display area 110 of the display unit 2. Note that the image processing and the display processing are performed based on the acquired parameters. Further, the display control unit 16 creates a thumbnail 114 to be displayed in the shooting method button 109 and causes the display unit 2 to display it.

[0045] For example, when the operator wants to change the contrast of the captured image, the operator operates buttons such as contrast and brightness provided in the image processing setting area 112. Similarly, when the operator wants to change the cutout area of the output image, the operator operates, for example, the cutout button 122 and the cutout frame 126 to specify a desired cutout area. When adding a string serving as diagnostic information, the operator can operate, for example, the annotation button 123 to superimpose an annotation composed of, for example, a string on the image displayed in the image display area 110. Further, when the orientation of the image is not suitable for diagnosis, geometric transformation of the displayed image can be performed using, for example, the rotation button 120 or the inversion button 121. As described above, the operator can perform additional image editing on the captured image displayed in the image display area 110 and change the image processing method and the display method by changing the parameters for the captured image.

[0046] The parameters changed by the above-described change operations are stored in the parameter holding unit corresponding to the shooting mode of the captured image by the parameter changing unit 27 in the control unit 5. That is, if the shooting mode of the captured image is the still image mode, the changed parameters are stored in the still image mode parameter holding unit 28. If it is the video mode, the changed parameters are stored in the video mode parameter holding unit 29, and if it is the fluoroscopy mode, the changed parameters are stored in the fluoroscopy mode parameter holding unit 30.

[0047] <Flow of display of captured image> Next, the process flow when displaying a new captured image in the image display area 110 will be described using the flowchart of FIG. 5. Note that this process includes cases where the acquired captured image is displayed and cases where an existing captured image is redisplayed by clicking on any of the thumbnails 114a to 114d.

[0048] When displaying a captured image, first, in step S501, the image processing unit 22 acquires the setting of the shooting protocol of the new captured image from the inspection information holding unit 23. After acquiring the setting of the shooting protocol, the flow proceeds to step S502a by the image processing unit 22. Note that the setting of the shooting protocol acquired in step S501 can be represented, as an example, by a table as shown in FIG. 6. That is, the setting of the shooting protocol in the present embodiment includes a setting as to whether to inherit each parameter held in the parameter holding unit corresponding to the shooting mode for a captured image shot in another shooting mode.

[0049] In the following description, in steps S502a to S504a, processing related to inheriting parameters regarding the rotation of the image to be displayed is performed. Also, in steps S502b to S504b (partially shown), …, steps S502h to S504h, processing related to inheriting each parameter (inversion, enlargement, reduction, panning, black-and-white inversion, brightness, and contrast) is sequentially performed. That is, for each parameter other than the rotation parameter, only the target parameter changes, and the processing itself is the same as the processing performed in steps S502a to S504a. Therefore, since it would be a repetition of the explanation, the processing related to inheriting parameters regarding the rotation performed in steps S502a to S504a will be described as an example, and the explanation of the processing related to the other parameters will be omitted. Hereinafter, the processing performed in steps S502a to S504a will be described.

[0050] In step S502a, the handover determination unit 26 determines whether the image to be displayed is not obtained by the first shooting and the setting of the obtained shooting protocol is to be handed over (the setting of the rotation parameter in the table of FIG. 6 is "hand over"). When it is determined that these conditions are satisfied (step S502a / Yes), the flow proceeds to step S503a by the image processing unit 22. When it is determined by the handover determination unit 26 that this condition is not satisfied (step S502a / No), the flow proceeds to step S504a.

[0051] In step S503a, the rotation parameters held in the parameter holding units 28, 29, and 30 corresponding to the shooting mode of the immediately previous captured image are reflected in the new captured image. That is, the rotation parameters reflected in the immediately previous captured image are handed over to the new captured image.

[0052] In step S504a, the rotation parameters held in the parameter holding units 28, 29, and 30 corresponding to the shooting mode of the new captured image are reflected in the new captured image. That is, either the process of handing over the rotation parameters reflected in the most recent captured image shot in the same mode or the process of reflecting the preset rotation parameters is executed by the image processing unit 22. After the execution of the process in step S503a or step S504a, the flow proceeds to step S502b by the image processing unit 22. Hereinafter, until the reflection of the contrast parameter for the new captured image or the handover of the contrast parameter used in the immediately previous captured image is executed by the process in step S503h or step S504h, the same process is repeated for each parameter. After the process in step S503h or step S504h is completed, the flow proceeds to step S505 by the image processing unit 22.

[0053] In step S505, the image processing unit 22 stores each parameter reflected in the new captured image in the parameter holding units 28, 29, and 30 corresponding to the shooting mode of the new captured image. This process is executed to store the parameters inherited from the immediately previous captured image when the shooting mode of the immediately previous captured image is different from that of the new captured image, or to store the parameter changes received from the radiation generator control unit 4 or the like during shooting. When each parameter used for displaying the new captured image is stored in any of the parameter holding units 28, 29, and 30, the flow proceeds to step S506 by the image processing unit 22.

[0054] In step S506, for the image generated by the image processing unit 22, the display control unit 16 causes the display unit 2 to display it as a new captured image in the image display area 110. After the new captured image is displayed according to the desired parameters, the above display process ends. Note that the setting of whether to inherit may be made available for setting other than in the shooting protocol. For example, it may be made possible to set according to the shooting site. Alternatively, a check box for setting whether to inherit may be added to the GUI of the operation unit 3 so that it can be set by the operator.

[0055] As described above, in the radiation imaging system according to one aspect of the present disclosure, a display image generated based on radiation images obtained in a plurality of imaging modes is displayed on the display unit 2 in accordance with a predetermined imaging protocol. The radiation imaging system includes an image processing unit 22, a parameter changing unit 27, and a determination unit (handover determination unit 26). The image processing unit 22 can generate a display image by reflecting parameters on the radiation image. The parameter changing unit 27 can change the parameters. The plurality of imaging modes include, for example, a video mode, a still image mode, and a fluoroscopy mode. The radiation imaging system according to the present disclosure can acquire a first radiation image in one (first) imaging mode among the plurality of imaging modes and acquire a second radiation image in another (second) imaging mode. A plurality of parameters are reflected in the first display image based on the first radiation image displayed on the display unit 2. When causing the display unit 2 to display a second display image based on the second radiation image acquired after the first radiation image, the determination unit can individually determine whether or not to carry over and reflect these plurality of parameters in the generation of the second display image.

[0056] The parameters in the radiation imaging system described above can include at least any one setting of, for example, enlargement, reduction, panning, inversion, rotation, black-and-white inversion, brightness, and contrast of the radiation image. Also, in the present disclosure, parameters that can differ depending on the imaging mode can be held in corresponding holding units. That is, the radiation imaging system can further include, for example, a still image mode parameter holding unit 28, a video mode parameter holding unit 29, and a fluoroscopy mode parameter holding unit 30 as a plurality of parameter holding units held for each imaging mode. Also, as in the present embodiment, the determination unit can determine whether or not to carry over and reflect the parameters based on the imaging protocol. Then, the image processing unit 22 can generate a display image by reflecting the parameters on the radiation image according to the determination result by the determination unit.

[0057] By executing the series of processes described above, when switching the display of the captured images obtained in different shooting modes, the image editing operations performed by the operator can be carried over based on the settings of the shooting protocol. That is, it becomes possible to reduce the operation burden on the operator regarding the change of parameters of the captured images among a plurality of shooting modes.

[0058] (Second Embodiment) In the first embodiment described above, regarding the process of determining whether to carry over the parameters reflected in the captured image obtained in a certain shooting mode to the display of the captured image obtained in another shooting mode based on the settings of the shooting protocol, an explanation has been given. In this embodiment, instead of the settings of the shooting protocol, it is determined whether to carry over the parameter change content to the display of the captured images obtained in each of a plurality of shooting modes according to the timing of the parameter change operation. Hereinafter, such an embodiment will be described with reference to FIGS. 7 to 9.

[0059] FIG. 7 is a diagram showing an overview of the control unit 75 in the same format as FIG. 2 for the radiation imaging system according to the second embodiment of the present disclosure. In addition to the configuration of the radiation imaging system according to the first embodiment shown in FIG. 2, it includes a common parameter holding unit 31. Note that the other configurations have already been described in the first embodiment, and since there are no differences in the second embodiment, the description here is omitted.

[0060] (Parameter Change Before the First Shooting) In this embodiment, when the operator changes parameters by an image editing operation via, for example, the operation unit 3, a series of processes performed by the parameter change unit 27 will be described with reference to the flowchart of FIG. 8. When the operator changes parameters, first, in step S801, the image processing unit 22 determines whether the parameter change made by the operator was performed before the first shooting after the inspection start. If it is before the first shooting (step S801 / Yes), the flow proceeds to step S802. If it is after the first shooting (step S801 / No), the flow proceeds to step S803.

[0061] In step S802, the image processing unit 22 saves the value after the parameter change in the common parameter holding unit 31 and ends the process.

[0062] The process performed in step S803 is a process of determining whether a parameter change by an image editing operation has been made after shooting has been performed one or more times. If the parameter has been changed, the changed parameter has already been saved in the common parameter holding unit 31. In step S803, if the image processing unit 22 determines that the parameter saved in the common parameter holding unit 31 was the parameter changed before the first shooting (step S803 / Yes), the flow proceeds to step S802. If it is determined that the parameter has not been saved, that is, the parameter has not been changed before the first shooting (step S803 / No), the flow proceeds to step S804.

[0063] In step S804, the image processing unit 22 acquires the shooting mode of the captured image displayed in the image display area 110, and the flow proceeds to step S805. In step S805, the parameter change unit 27 saves the value of the parameter after the change as a parameter corresponding to the shooting mode acquired in step S804 in one of the corresponding parameter holding units 28, 29, 30, 31, and ends the process.

[0064] <Image display> Next, in this embodiment, the processing flow when a new captured image is displayed in the image display area 110 will be described with reference to the flowchart of FIG. 9. This processing includes cases where the acquired captured image is displayed, or where an existing captured image is redisplayed by clicking on thumbnails 114a to 114d or the like.

[0065] When the display process of the captured image is started, the image processing unit 22 causes the flow to shift to step S901a, and the display process according to this embodiment is started. In the following description, in steps S901a to S903a, processing related to inheriting parameters changed before the first shooting is performed for the rotation of the image to be displayed. Also, in steps S901b to S903b (partially shown), …, steps S901h to S903h, processing related to inheriting parameters changed before the first shooting is sequentially performed for each parameter. Each parameter includes inversion, enlargement, reduction, panning, black-and-white inversion, brightness, contrast, etc., as in the first embodiment. That is, for each parameter other than the rotation parameter, only the target parameter changes, and the processing itself is the same as the processing performed in steps S901a to S903a. Therefore, since it would be repetitive to explain, the processing related to inheriting the rotation parameter executed in steps S901a to S903a will be described as an example, and the description of the processing related to other parameters will be omitted. Hereinafter, the processing executed in steps S901a to S903a will be described.

[0066] In step S901a, the inheritance determination unit 26 determines whether the rotation parameter set for the image to be displayed is stored in the common parameter holding unit 31. If it is determined that it is stored (step S901a / Yes), the flow shifts to step S902a. If it is determined that it is not stored (step S901a / No), the flow shifts to step S903a.

[0067] In step S902a, the image processing unit 22 reflects the rotation parameters held in the common parameter holding unit 31 in the captured image to be newly displayed. That is, the rotation parameters changed before the first capture is performed are carried over to the captured image to be newly displayed.

[0068] In step S903a, the image processing unit 22 reflects the rotation parameters held in the parameter holding unit corresponding to the shooting mode of the new captured image in the captured image to be newly displayed. After the execution of the process in step S902a or step S903a, the flow is shifted to step S901b by the image processing unit 22. Hereinafter, until the reflection of the stored contrast parameters or the carry-over of the contrast parameters applied to the captured image to be newly displayed is executed by the process in step S902h or step S903h, similar processing is repeated for each parameter. After the process in step S902h or step S903h is completed, the flow is shifted to step S904 by the image processing unit 22.

[0069] In step S904, the image processing unit 22 stores each parameter reflected in the new captured image in the parameter holding units 28, 29, and 30 corresponding to the shooting mode of the new captured image. This process is executed to carry over and store the changed parameters when the shooting mode corresponding to the parameters changed before shooting is different from the shooting mode of the new captured image. It can also be executed to store parameter changes received from the radiation generator control unit 4 or the like during shooting. When each parameter used for displaying the new captured image is stored in any of the parameter holding units 28, 29, and 30, the flow is shifted to step S905 by the image processing unit 22.

[0070] In step S905, for the image generated by the image processing unit 22, the display control unit 16 causes it to be displayed as a new captured image in the image display area 110 of the display unit 2. After the new captured image is displayed according to the desired parameters, the above display process ends.

[0071] As described in the second embodiment, in the present disclosure, when parameters are changed before taking a radiation image, the determination unit (inheritance determination unit 26) can determine to inherit and reflect the changed parameters when generating a display image. And the radiation imaging system according to the present embodiment can include a common parameter holding unit 31 in addition to the plurality of parameter holding units (28, 29, 30) described in the first embodiment. The plurality of parameter holding units (28, 29, 30) hold parameters that can be different depending on the imaging mode for each imaging mode. The common parameter holding unit 31 holds the changed parameters.

[0072] By executing the series of processes described above, for the parameters changed before the first imaging, when switching the display to the imaging images of different imaging modes, the changed content can be inherited. For example, when performing an inspection with the radiation detector 7 rotated, it is necessary to reflect the rotation of the radiation detector 7 in all the imaging images taken within the inspection. In such a case, by changing the rotation parameter before the first imaging, even when imaging and displaying while switching between a plurality of imaging modes, an image rotated in response to the parameter change can be displayed with a single editing operation.

[0073] (Third Embodiment) In the present embodiment, it is determined whether or not to inherit the parameter change content between a plurality of imaging modes according to the setting of the imaging protocol and the timing of the parameter change operation. Since the configuration of the radiation imaging system according to the present embodiment is the same as the configuration shown in FIG. 7 as the second embodiment, the description here is omitted. Hereinafter, in the present embodiment, the flow of the process when the control unit 75 displays a new imaging image in the image display area 110 will be described using the flowcharts shown in FIGS. 10(a) and 10(b). The process according to the present embodiment includes the case of displaying the acquired imaging image and the case of redisplaying an existing imaging image by clicking on the thumbnail 114 or the like.

[0074] <Image Display> When displaying a captured image, first, in step S1001, the image processing unit 22 acquires the shooting protocol settings of the new captured image from the inspection information holding unit 23. After acquiring the shooting protocol settings, the flow proceeds to step S1002a by the image processing unit 22. Note that the shooting protocol settings acquired in step S1001 can be represented, as an example, by a table as shown in FIG. 6. That is, the shooting protocol settings in the present embodiment include settings as to whether to inherit each parameter held in the parameter holding unit corresponding to the shooting mode for a captured image captured in another shooting mode.

[0075] In the following description, in steps S1002a to S1006a, processing related to inheritance of parameters regarding rotation of the image to be displayed is performed. Also, in steps S1002b to S1006b (partially illustrated), …, steps S1002h to S1006h, processing related to inheritance of each parameter (inversion, enlargement, reduction, panning, black-and-white inversion, brightness, and contrast) is sequentially performed. That is, for each parameter other than the rotation parameter, only the target parameter changes, and the processing itself is the same as the processing performed in steps S1002a to S1006a. Therefore, since it would be a repetition of the explanation, the processing related to inheritance of parameters regarding rotation executed in steps S1002a to S1006a will be described as an example, and the explanation of the processing related to other parameters will be omitted. Hereinafter, the processing executed in steps S1002a to S1006a will be described.

[0076] In step S1002a, the inheritance determination unit 26 determines whether the rotation parameter set for the image to be displayed is stored in the common parameter holding unit 31. If it is determined that it is stored (step S1002a / Yes), the flow proceeds to step S1003a. If it is determined that it is not stored (step S1002a / No), the flow proceeds to step S1004a.

[0077] In step S1003a, the image processing unit 22 reflects the rotation parameters held in the common parameter holding unit 31 on the captured image to be newly displayed. That is, the rotation parameters changed before the first capture is performed are carried over to the captured image to be newly displayed. After reflecting the held rotation parameters in the parameters of the image to be displayed, the flow proceeds to step S1002b.

[0078] In step S1004a, the carry-over determination unit 26 determines whether the image to be displayed is not the one obtained in the first capture and the setting of the acquired capture protocol is to be carried over (the setting of the rotation parameters in the table of FIG. 6 is "carry over"). When it is determined that these conditions are satisfied (step S1004a / Yes), the flow proceeds to step S1005a by the image processing unit 22. When it is determined by the carry-over determination unit 26 that these conditions are not satisfied (step S1004a / No), the flow proceeds to step S1006a.

[0079] In step S1005a, the rotation parameters held in the parameter holding units 28, 29, 30 corresponding to the shooting mode of the immediately preceding captured image are reflected on the new captured image. That is, the rotation parameters reflected on the immediately preceding captured image are carried over to the new captured image. After reflecting the carried-over rotation parameters in the parameters of the image to be displayed, the flow proceeds to step S1002b.

[0080] In step S1006a, the rotation parameters held in the parameter holding units 28, 29, 30 corresponding to the shooting mode of the new captured image are reflected on the new captured image. After reflecting the rotation parameters of the shooting mode of the new captured image in the parameters of the image to be displayed, the flow proceeds to step S1002b.

[0081] Thereafter, similar processing is repeated for each parameter until the contrast parameter to be applied to the newly displayed captured image is reflected by the processing of step S1003h, step S1005h, or step S1006h. After the processing of step S1003h, step S1005h, or step S1006h is completed, the flow proceeds to step S1007 by the image processing unit 22.

[0082] In step S1007, the image processing unit 22 stores each parameter reflected in the new captured image in the parameter holding units 28, 29, 30, 31 corresponding to the shooting mode of the new captured image. This process is executed to inherit and save the changed parameters when the shooting mode corresponding to the parameters changed before shooting is different from the shooting mode of the new captured image. It can also be executed to save parameter changes received from the radiation generator control unit 4 or the like during shooting. When each parameter used for displaying the new captured image is stored in any of the parameter holding units 28, 29, 30, 31, the flow proceeds to step S1008 by the image processing unit 22.

[0083] In step S1008, the display control unit 16 causes the image generated by the image processing unit 22 to be displayed as a new captured image in the image display area 110 of the display unit 2. After the new captured image is displayed according to the desired parameters, the above display processing is terminated.

[0084] By executing the series of processes described above, when switching the display of captured images in different shooting modes, the image editing operations performed by the operator can be inherited based on the settings of the shooting protocol and the operation timing (whether it was performed before the first shooting). Also, the setting of whether to inherit may be made configurable other than in the shooting protocol. For example, it may be made configurable according to the shooting site, or a check box for setting whether to inherit may be added to the GUI of the operation unit 3.

[0085] As described above, in the third embodiment, the determination unit (26) can determine to inherit and reflect the changed parameters. In this case, the parameter change unit 27 changes the parameters set in the imaging mode in which the radiation image was acquired to the parameters determined to be inherited and reflected. Then, the image processing unit 22 generates a display image reflecting the changed parameters. Further, the determination unit can also determine not to inherit and reflect the changed parameters. In this case, the image processing unit 22 generates a display image reflecting the parameters set in the imaging mode in which the radiation image was acquired.

[0086] The settings reflected during image display include enlargement, reduction, panning, inversion, rotation, black-and-white inversion, brightness, and contrast, etc., and there are many setting items (parameters) for the image. On the other hand, if it is individually determined whether to inherit these settings between multiple imaging modes, the labor of the operator will be extremely large and it is not suitable for actual diagnosis. According to the present disclosure, it is possible to reduce the operation burden related to the change of the parameters of the captured image by individually determining whether to inherit a plurality of parameters for the radiation image between multiple imaging modes.

[0087] (Fourth Embodiment) In the first to third embodiments described above, the mode in which the present disclosure is applied to a radiation imaging system has been described. However, the present disclosure can also be applied to an image processing apparatus that captures images in a plurality of different modes and generates, as a display image, a stored image that can be mutually compared, for example, to be suitable for diagnosis, when the radiation image stored in, for example, a PACS is displayed on a monitor or the like. In this embodiment, such an image processing apparatus will be described with reference to FIGS. 11 and 12(a) and (b). In the second embodiment, for the components included in the control unit 5 that exhibit the same or similar functions as the components included in the control unit 5 described above, the same reference numerals will be assigned and the description here will be omitted.

[0088] FIG. 11 is a diagram showing an example of the schematic configuration of the image processing apparatus 1105 according to the present embodiment. The image processing apparatus 1105 is different from the control unit 75 described in the second embodiment in that it does not have the imaging control unit 21 and the inspection management unit 24. Further, the inspection information holding unit 23 stores the radiation image acquired in advance and is shown as a configuration built in the image processing apparatus 1105. However, the inspection information holding unit 23 that holds the captured radiation image and the imaging mode and imaging protocol at the time of capturing the radiation image may be substituted by an external device, for example, PASC.

[0089] <Image display> When displaying an image, first, in step S1201, the image processing unit 22 acquires the setting of the imaging protocol of the radiation image to be the first display target from the inspection information holding unit 23. After acquiring the setting of the imaging protocol, the flow proceeds to step S1202a by the image processing unit 22. Note that the setting of the imaging protocol acquired in step S1201 can be represented, as an example, by a table as shown in FIG. 6. That is, the setting of the imaging protocol in the present embodiment includes a setting as to whether or not to inherit each parameter held in the parameter holding unit corresponding to the imaging mode for the radiation image captured in another imaging mode.

[0090] In the following description, in steps S1202a to S1206a, processing related to passing on parameters regarding the rotation of the image to be displayed is performed. Also, in steps S1202b to S1206b (partially illustrated), …, steps S1202h to S1206h, processing related to passing on each parameter (inversion, enlargement, reduction, panning, black-and-white inversion, brightness, and contrast) is sequentially performed. That is, for each parameter other than the rotation parameter, only the target parameter changes, and the processing itself is the same as the processing performed in steps S1202a to S1206a. Therefore, since it would be a repetition of the explanation, the processing related to passing on the parameters regarding the rotation executed in steps S1202a to S1206a will be described as an example, and the explanation of the processing related to the other parameters will be omitted. Hereinafter, the processing executed in steps S1202a to S1206a will be described.

[0091] In step S1202a, the inheritance determination unit 26 determines whether the rotation parameter set for the image to be displayed is stored in the common parameter holding unit 31. If it is determined that it is stored (step S1202a / Yes), the flow proceeds to step S1203a. If it is determined that it is not stored (step S1202a / No), the flow proceeds to step S1204a.

[0092] In step S1203a, the image processing unit 22 reflects the rotation parameter held in the common parameter holding unit 31 in the captured image to be newly displayed. That is, the rotation parameter changed before the first display is passed on to the captured image to be newly displayed. After reflecting the held rotation parameter in the parameters of the image to be displayed, the flow proceeds to step S1202b.

[0093] In step S1204a, the handover determination unit 26 determines whether the image to be displayed is not an image acquired for the first display and whether the setting of the shooting protocol for acquiring the image is to be handed over. When it is determined that these conditions are satisfied (step S1204a / Yes), the flow proceeds to step S1205a by the image processing unit 22. When it is determined by the handover determination unit 26 that these conditions are not satisfied (step S1204a / No), the flow proceeds to step S1206a.

[0094] In step S1205a, the rotation parameters held in the parameter holding units 28, 29, and 30 corresponding to the shooting mode at the time of acquiring the immediately preceding display image are reflected in the new display image. That is, the rotation parameters reflected in the immediately preceding display image are handed over to the new display image. After reflecting the handed-over rotation parameters in the parameters of the image to be displayed, the flow proceeds to step S1202b.

[0095] In step S1206a, the rotation parameters held in the parameter holding units 28, 29, and 30 corresponding to the shooting mode of the new display image are reflected in the new display image. After reflecting the rotation parameters of the shooting mode of the new display image in the parameters of the image to be displayed, the flow proceeds to step S1202b.

[0096] Hereinafter, until the reflection of the contrast parameters to be applied to the newly displayed image is executed by the processing of step S1203h, step S1205h, or step S1206h, similar processing is repeated for each parameter. After the processing of step S1203h, step S1205h, or step S1206h is completed, the flow proceeds to step S1207 by the image processing unit 22.

[0097] In step S1207, the image processing unit 22 stores each parameter reflected in the new display image in parameter holding units 28, 29, 30, 31 corresponding to the shooting mode of the new display image. This process is executed to inherit and store the changed parameters when the shooting mode corresponding to the parameters changed before display is different from the shooting mode of the new display image. It can also be executed to store parameter changes received from the radiation generator control unit 4 or the like during the shooting of the display image. When each parameter used for the display of the new display image is stored in any of the parameter holding units 28, 29, 30, 31, the flow is shifted to step S1208 by the image processing unit 22.

[0098] In step S1208, for the image generated by the image processing unit 22, the display control unit 16 causes the display unit 2 to display it as a new display image in the image display area 110. After the new display image is displayed according to the desired parameters, the above display process is terminated. Note that the setting of whether to inherit may be made available for setting other than the shooting protocol. For example, it may be made possible to set according to the imaging site, or a check box for setting whether to inherit may be added to the GUI of the operation unit 3.

[0099] As described above, in the image processing apparatus according to one aspect of the present disclosure, a display image to be displayed on, for example, the display unit 2 is generated based on radiation images obtained in a plurality of imaging modes according to a predetermined imaging protocol. The image processing apparatus includes an image processing unit 22, a parameter changing unit 27, and a determination unit (handover determination unit 26). The image processing unit 22 can generate a display image by reflecting parameters on the radiation image. The parameter changing unit 27 can change the parameters. The plurality of imaging modes include, for example, a video mode, a still image mode, and a fluoroscopy mode. The image processing apparatus according to the present disclosure can acquire a first radiation image in one (first) imaging mode among the plurality of imaging modes and acquire a second radiation image in another (second) imaging mode. A plurality of parameters are reflected in the first display image based on the first radiation image displayed on the display unit 2. When the determination unit causes the display unit 2 to display a second display image based on the second radiation image after displaying the first display image, it can individually determine whether or not to continue to reflect these plurality of parameters in the generation of the second display image. Further, the image processing unit 22 can reflect the parameters in the second display image according to the determination result.

[0100] By executing the series of processes described above, when switching the display between captured images in different imaging modes, the image editing operations performed by the operator can be continued based on the settings of the imaging protocol and the operation timing (whether it was performed before the first display). That is, it becomes possible to reduce the operation burden on the operator regarding the change of parameters when diagnosing by displaying the captured images outside the imaging time among the plurality of imaging modes.

[0101] (Other Embodiments) The present disclosure can also be implemented by supplying a program that implements one or more functions of the above-described embodiments to a system or apparatus via a network or a storage medium, and causing one or more processors in a computer of the system or apparatus to read and execute the program. It can also be implemented by a circuit (for example, ASIC) that implements one or more functions. Further, various recording media such as a flexible disk, an optical disk (for example, CD-ROM, DVD-ROM), a magneto-optical disk, a magnetic tape, a nonvolatile memory (for example, USB memory), and a ROM can be used as the recording medium. Further, the program that implements the above-described functions may be downloaded via a network and executed by a computer.

[0102] Moreover, the present invention is not limited to the case where the functions of the above-described embodiments are realized only by executing the program code read by the computer. Based on the instructions of the program code, an OS (operating system) or the like running on the computer performs part or all of the actual processing, and the functions of the above-described embodiments are realized by the processing.

[0103] Furthermore, the program code read from the recording medium may be written into a memory provided in a function expansion board inserted into the computer or a function expansion unit connected to the computer. Based on the instructions of the program code, a CPU or the like provided in the function expansion board or the function expansion unit performs part or all of the actual processing, and the above-described functions are realized by the processing.

[0104] The above disclosure includes the following configurations, methods, and programs. (Configuration 1) A radiation imaging system that displays a display image generated based on radiation images obtained by a plurality of imaging modes according to a predetermined imaging protocol on a display unit, an image processing unit that generates the display image by reflecting parameters on the radiation image, a parameter change unit that changes the parameters, After acquiring a first radiographic image by a first imaging mode among the plurality of imaging modes, when causing the display unit to display a second display image based on a second radiographic image acquired by a second imaging mode different from the first imaging mode among the plurality of imaging modes, a determination unit that individually determines whether to inherit and reflect a plurality of the parameters reflected in the first display image based on the first radiographic image in the generation of the second display image; A radiographic imaging system comprising the same. (Configuration 2) The radiographic imaging system according to Configuration 1, wherein the parameters include at least one setting of enlargement, reduction, panning, inversion, rotation, black-and-white inversion, luminance, and contrast of the radiographic image. (Configuration 3) The radiographic imaging system according to Configuration 1 or 2, further comprising a plurality of parameter holding units that hold the parameters that can be different depending on the imaging mode, for each imaging mode. (Configuration 4) The radiographic imaging system according to any one of Configurations 1 to 3, wherein the determination unit determines whether to inherit and reflect the parameters based on the imaging protocol. (Configuration 5) A plurality of parameter holding units that hold the parameters that can be different depending on the imaging mode, for each imaging mode; The radiographic imaging system according to any one of Configurations 1 to 4, further comprising a common parameter holding unit that holds the changed parameters. (Configuration 6) The radiographic imaging system according to any one of Configurations 1 to 5, wherein the determination unit determines to inherit and reflect the changed parameters in the generation of the display image when the parameters are changed before imaging of the radiographic image. (Configuration 7) When the determination unit determines to inherit and reflect the changed parameter, the parameter change unit changes the parameter set in the imaging mode in which the radiation image was acquired to the parameter determined to be inherited and reflected, The image processing unit generates the display image by reflecting the changed parameter, and the radiation imaging system according to any one of Configurations 1 to 6. (Configuration 8) When the determination unit determines not to inherit and reflect the changed parameter, the image processing unit generates the display image by reflecting the parameter set in the imaging mode in which the radiation image was acquired, and the radiation imaging system according to any one of Configurations 1 to 7. (Configuration 9) An image processing device that generates a display image to be displayed on a display unit based on radiation images obtained by a plurality of imaging modes of a radiation imaging device according to a predetermined imaging protocol, An image processing unit that generates the display image by reflecting a parameter on the radiation image; A parameter change unit that changes the parameter; After displaying a first display image based on a first radiation image acquired by a first imaging mode among the plurality of imaging modes on the display unit, when displaying a second display image based on a second radiation image acquired by a second imaging mode different from the first imaging mode among the plurality of imaging modes on the display unit, a determination unit that individually determines whether to inherit and reflect a plurality of the parameters reflected in the first display image when generating the second display image; An image processing device comprising: (Method 1) A method for displaying a radiation image that displays a display image generated based on radiation images obtained by a plurality of imaging modes on a display unit according to a predetermined imaging protocol, Changing the parameter; After acquiring a first radiation image by a first imaging mode among the plurality of imaging modes, when displaying a second display image based on a second radiation image acquired by a second imaging mode different from the first imaging mode among the plurality of imaging modes on the display unit, individually determine whether to carry over and reflect a plurality of the parameters reflected in the first display image when generating the second display image. Generate the display image by reflecting the parameters in the radiation image according to the determination result. A method for displaying a radiation image including the above. (Method 2) An image processing method for generating a display image to be displayed on a display unit based on radiation images obtained by a plurality of imaging modes of a radiation imaging apparatus according to a predetermined imaging protocol, Changing the parameters. After displaying a first display image based on a first radiation image acquired by a first imaging mode among the plurality of imaging modes on the display unit, when displaying a second display image based on a second radiation image acquired by a second imaging mode different from the first imaging mode among the plurality of imaging modes on the display unit, individually determine whether to carry over and reflect a plurality of the parameters reflected in the first display image when generating the second display image. Generate the display image by reflecting the parameters in the radiation image according to the determination result. An image processing method including the above. (Program) A program that, when executed by a computer, causes the computer to execute each step of the method for displaying a radiation image described in Method 1 or the image processing method described in Method 2.

Explanation of Signs

[0105] 1: Radiation imaging apparatus 2: Display unit 3: Operation unit 4: Radiation generator control unit 5: Control Unit 6: Photography Table 7: Radiation Detector 8: Radiation Generator 10: Subject 11: HIS 12: RIS 13: PACS 14: Printer 15: Network 16: Display Control Unit

Claims

1. A radiographic imaging system that displays, on a display unit, a display image generated based on radiographic images obtained by a plurality of imaging modes according to a predetermined imaging protocol, comprising: an image processing unit that generates the display image while reflecting parameters for the radiographic image; a parameter changing unit that changes the parameters; a determination unit that, when acquiring a first radiographic image by a first imaging mode among the plurality of imaging modes and then displaying, on the display unit, a second display image based on a second radiographic image obtained by a second imaging mode different from the first imaging mode among the plurality of imaging modes, individually determines whether to carry over and reflect, in the generation of the second display image, a plurality of the parameters reflected in a first display image based on the first radiographic image; A radiographic imaging system comprising the above.

2. The radiographic imaging system according to claim 1, wherein the parameters include at least one setting of enlargement, reduction, panning, inversion, rotation, black-and-white inversion, luminance, and contrast of the radiographic image.

3. The radiographic imaging system according to claim 1, further comprising a plurality of parameter holding units that hold, for each imaging mode, the parameters that can be different depending on the imaging mode.

4. The radiographic imaging system according to claim 1, wherein the determination unit determines whether to carry over and reflect the parameters based on the imaging protocol.

5. The radiographic imaging system according to claim 1, further comprising: a plurality of parameter holding units that hold, for each imaging mode, the parameters that can be different depending on the imaging mode; and a common parameter holding unit that holds the changed parameters.

6. The radiographic imaging system according to claim 1, wherein when the parameters are changed before imaging of the radiographic image, the determination unit determines to carry over and reflect the changed parameters in the generation of the display image.

7. When the determination unit determines to carry over and reflect the changed parameters, the parameter changing unit changes the parameters set in the imaging mode in which the radiographic image was acquired to the parameters determined to be carried over and reflected. The radiographic imaging system according to any one of claims 1 to 6, wherein the image processing unit generates the display image by reflecting the changed parameters.

8. When the determination unit determines not to inherit and reflect the changed parameters, the image processing unit generates the display image by reflecting the parameters set in the imaging mode in which the radiation image was acquired. The radiographic imaging system according to any one of claims 1 to 6.

9. An image processing apparatus that generates a display image to be displayed on a display unit based on radiation images obtained by a plurality of imaging modes of a radiation imaging apparatus according to a predetermined imaging protocol, An image processing unit that generates the display image by reflecting parameters on the radiation image; A parameter change unit that changes the parameters; After causing the display unit to display a first display image based on a first radiation image acquired by a first imaging mode among the plurality of imaging modes, when causing the display unit to display a second display image based on a second radiation image acquired by a second imaging mode different from the first imaging mode among the plurality of imaging modes, a determination unit that individually determines whether to inherit and reflect a plurality of the parameters reflected in the first display image when generating the second display image; An image processing apparatus comprising the above.

10. A method for displaying a radiation image, which displays a display image generated based on radiation images obtained by a plurality of imaging modes on a display unit according to a predetermined imaging protocol, Changing the parameters; After acquiring a first radiation image by a first imaging mode among the plurality of imaging modes, when causing the display unit to display a second display image based on a second radiation image acquired by a second imaging mode different from the first imaging mode among the plurality of imaging modes, individually determining whether to inherit and reflect a plurality of the parameters reflected in the first display image based on the first radiation image when generating the second display image; Generating the display image by reflecting parameters on the radiation image according to the determination result; A method for displaying a radiation image including the above.

11. An image processing method for generating a display image to be displayed on a display unit based on radiation images obtained by a plurality of imaging modes of a radiation imaging apparatus according to a predetermined imaging protocol, changing the parameters; after displaying a first display image based on a first radiation image obtained by a first imaging mode among the plurality of imaging modes on the display unit, when displaying a second display image based on a second radiation image obtained by a second imaging mode different from the first imaging mode among the plurality of imaging modes on the display unit, individually determining whether to carry over and reflect a plurality of the parameters reflected in the first display image when generating the second display image; generating the display image by reflecting the parameters for the radiation image according to the determination result; An image processing method including the above.

12. A program that, when executed by a computer, causes the computer to execute each step of the method for displaying a radiation image according to claim 10 or the image processing method according to claim 11.

Images