JP2004188095A - Cassette for radiography and radiographic system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable a photographer for a radiation image to confirm a radiation image taken even other than a place where a radiation reader is installed. <P>SOLUTION: This radiographic cassette 1 is equipped with an FPD3 for forming the same X-ray image as the X-ray image recorded on a stimulable phosphor sheet 6 as image data and a liquid crystal display 4 for displaying the X-ray image formed from the image data. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a radiographic imaging system and a radiographic imaging cassette, and more particularly to a radiographic imaging system and a radiographic imaging cassette that digitize radiographed radiographic images and record them as image data.
[0002]
[Prior art]
There is a demand for improving the efficiency and speed of diagnosis by digitizing radiographic images represented by X-ray images widely used for disease diagnosis as image data and storing and transmitting the data on a network. Therefore, a radiation image capturing system that creates image data of a radiation image using a stimulable phosphor has been widely used.
[0003]
A stimulable phosphor is a substance that accumulates irradiated radiation energy, and subsequently emits stimulable light in response to the accumulated radiation energy when irradiated with excitation light. Since an image is formed by the light and darkness, the stimulable phosphor is generally laminated on a sheet-like support and used as a radiation image recording medium for recording a radiation image as a stimulable phosphor sheet. The stimulable light emitted by the stimulable phosphor can be extracted as an electric signal using a photoelectric conversion element.
[0004]
As a radiation image capturing system using the stimulable phosphor, for example, a cassette type radiation image capturing system using a portable radiation image capturing cassette is widely used, for example.
[0005]
In a cassette-type radiographic image capturing system, the stimulable phosphor sheet is used for radiographic image capturing in a state of being housed in a radiographic image capturing cassette, and accumulates radiation energy. The photographed stimulable phosphor sheet is set in a radiation image reading apparatus while being stored in a radiation image capturing cassette, and a reading process is performed (for example, see Patent Documents 1 and 2).
[0006]
The radiation image reading apparatus takes out the stimulable phosphor sheet from the set cassette for radiographic image capturing, irradiates with excitation light to take out the stimulable phosphor, and performs photoelectric conversion to create an electric signal indicating a radiation image. . This electric signal is A / D converted and becomes digital image data, which enables image processing and recording on various digital recording media.
[0007]
When the radiation image reading apparatus is connected to a network, the created image data can be transmitted and received between computers connected to the network. For example, it is also possible to display a radiographic image on a terminal device installed in a diagnostic room and use it for a doctor's diagnosis of a subject.
[0008]
Image processing such as gradation processing can be performed on the digitized image data as necessary, but if the part required by the physician is not properly photographed in the radiographic image, it may be re-executed. I have to shoot. Conventionally, positioning of a captured radiographic image can be confirmed by displaying the radiographic image on a display screen of a console built into the radiographic image reading device or a connected controller device when the radiographic image reading device reads the image data. It is done by letting.
[0009]
[Patent Document 1]
Japanese Patent Application Laid-Open No. 2000-28487 [Patent Document 2]
JP-A-11-289426
[Problems to be solved by the invention]
However, in the conventional radiographic imaging system, when a radiographic image is taken by circulating a hospital room or the like, in order to confirm the positioning of the taken radiographic image, the radiographic image reading device has been taken to a certain location. A radiation image capturing cassette containing a stimulable phosphor sheet must be carried, and the radiation image reading device must read the image data and display the image data on a display unit or the like. In addition, if it is determined that re-imaging is necessary as a result of checking the displayed radiographic image, the photographer must perform re-imaging at the location of the subject, perform the imaging, and then check the positioning again. Must.
[0011]
As described above, when an image is taken in a hospital room or the like using the portable cassette for radiographic image capturing, the location where the image was captured is different from the location where the radiation image reading device is installed. In some cases, re-imaging requires a lot of labor and time.
[0012]
The present invention has been made in view of the above points, and a radiographic image capturing system and a radiographic image capturing apparatus capable of confirming a radiographic image captured by a radiographic image photographer even at a place other than where the radiation reading apparatus is installed. It is intended to provide a cassette for use.
[0013]
[Means for Solving the Problems]
In order to achieve the above object, a cassette for radiographic imaging according to the invention according to claim 1,
In a portable radiographic imaging cassette for handling a radiographic image recording medium,
A confirmation radiation image recording medium for recording a radiation image equal to the radiation image recorded on the radiation image recording medium as image data,
An image display device that displays the radiation image recorded on the confirmation radiation image recording medium,
The confirmation radiation image recording medium has a control unit that displays an image on the image display device based on the image data.
[0014]
According to the first aspect of the present invention, a radiation image equal to the radiation image recorded on the radiation image recording medium is recorded as image data on the confirmation radiation image recording medium. The image data is transmitted to the image display device via the communication unit and displayed.
[0015]
Further, the radiation image capturing cassette according to the second aspect of the present invention,
In a portable radiographic imaging cassette for handling a radiographic image recording medium,
A radiation image recording medium for confirmation that records a radiation image equal to the radiation image recorded on the radiation image recording medium as image data,
The confirmation radiation image recording medium has a communication unit that transmits the image data to a portable terminal that displays the radiation image.
[0016]
According to the second aspect of the present invention, a radiation image equal to the radiation image recorded on the radiation image recording medium is recorded on the confirmation radiation image recording medium as image data. Further, the image data is transmitted to the mobile terminal via the communication unit, and the mobile terminal displays a radiation image formed by the image data.
[0017]
The radiation image capturing system according to the third aspect of the present invention,
Radiation comprising: a radiation image recording medium that records a radiation image obtained by irradiating radiation from a radiation generation device; and a radiation image reading device that reads the radiation image recorded on the radiation image recording medium as image data. In imaging systems,
A portable terminal that receives the image data read by the radiation image reading device and displays a radiation image based on the image data,
The radiation image reading apparatus has a communication unit that transmits image data to the portable terminal.
[0018]
According to the third aspect of the present invention, the image data read from the radiation image recording medium by the radiation image reading device is transmitted to the portable terminal via the communication unit, and the portable terminal is formed by the image. Display a radiation image.
[0019]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to FIGS.
[0020]
[First Embodiment]
A first embodiment of the present invention will be described with reference to FIGS.
[0021]
FIG. 1 shows an embodiment of a cassette for radiographic imaging according to the present invention, FIG. 1 (a) is a perspective view thereof, and FIG. 1 (b) is a schematic view showing the inside thereof.
[0022]
The X-ray cassette 1, which is a radiographic imaging cassette, has a housing 2, and an FPD (Flat Panel Detector) 3, which is a confirmation radiation image recording medium, is provided on the inner rear plate side of the housing 2. Has been. Further, a liquid crystal display 4, which is an image display device for displaying an X-ray image formed by image data created by the FPD 3, is embedded in the outer surface of the rear plate of the housing 2, and is displayed. A window 5 for checking an X-ray image is formed.
[0023]
The casing 2 accommodates a stimulable phosphor sheet 6 as a radiation image recording medium, and X-rays transmitted through a subject during radiographic imaging pass through the front plate of the casing 2 to cause stimulable phosphor. The phosphor reaches the phosphor sheet 6. In addition, since a part of the body of the subject may be put on the upper part during radiographic imaging, the front plate of the housing 2 is made of a material having high X-ray transmittance and rigidity such as aluminum or carbon fiber reinforced resin. Preferably, it is constituted. On the other hand, the rear plate of the housing 2 in which the liquid crystal display 4 and the like are provided may be any material having rigidity sufficient to prevent physical damage thereof, and may be made of various metals, synthetic resins, and fiber reinforced materials. Resins and the like can be mentioned.
[0024]
As shown in FIG. 2, the FPD 3 includes an X-ray detection device 7 that detects irradiated X-rays and converts the X-rays into an electric signal, and a control device 8 that can handle the electric signal as image data.
[0025]
The X-ray detection device 7 includes an intensifying screen 9 that emits visible light when receiving X-rays, and a semiconductor element that senses light emitted by the intensifying screen 9 and converts the light into an electric signal. It has a photoelectric conversion layer 10 to be formed and a support plate 11 for forming the photoelectric conversion layer 10. They are arranged in parallel with the front plate of the housing 2, and have a layered structure of an intensifying screen 9, a photoelectric conversion layer 10, and a support plate 11 from the front plate side of the housing 2. Further, the photoelectric conversion layer 10 and the control device 8 are electrically connected.
[0026]
The control device 8 includes a control unit 12 that controls the entire FPD 3, an image processing unit 13 that processes an electric signal as image data, and a recording medium 14 that records image processing information and the like.
[0027]
The control unit 12 controls the image processing unit 13 to generate image data from the electric signal sent from the X-ray detection device 7 and the image processing information recorded on the recording medium 14, and controls the liquid crystal display 4 to generate image data. Control to transmit an instruction to display the obtained image data and the radiation image.
[0028]
The liquid crystal display 4 has a substrate (not shown). The substrate has a liquid crystal panel 15 for displaying an X-ray image and a liquid crystal panel for displaying the image data sent from the FPD 3 on the liquid crystal panel 15. A drive circuit 16 is provided. The liquid crystal panel 15 is disposed at a position corresponding to the window 5 so that the liquid crystal panel 15 can be checked on the rear surface of the X-ray cassette 1.
[0029]
In addition, the radiation image capturing system using the cassette for capturing a radiation image according to the present invention includes an X-ray generator (not shown) as a radiation generator for irradiating the subject with X-rays and a stimulable phosphor sheet 6. And a phosphor reading device (not shown) as a radiation image reading device for reading an X-ray image recorded in the device. The phosphor reader is installed at a specific place such as a radiology department.
[0030]
Next, the operation of the first embodiment will be described.
[0031]
The X-ray photographer arranges an imaging region of the subject between the X-ray generator and the X-ray cassette 1 and irradiates the subject with X-rays.
[0032]
The irradiated X-rays pass through the subject, reach the stimulable phosphor sheet 6 housed in the X-ray cassette 1, and the energy is accumulated in the stimulable phosphor sheet 6.
[0033]
The irradiated X-rays also reach the intensifying screen 9 of the FPD 3. When the intensifying screen 9 senses X-rays, it emits visible light having an intensity corresponding to the energy of the X-rays.
[0034]
The visible light emitted from the intensifying screen 9 is exposed to the semiconductor element of the photoelectric conversion layer 10. In the photoelectric conversion layer 10, an electric signal corresponding to the intensity of visible light emitted from the intensifying screen 9 is formed.
[0035]
An electric signal generated by the X-ray detection device 7 from the X-ray energy reaching the X-ray cassette 1 is sent to the control device 8.
[0036]
When the control device 8 receives the electric signal from the X-ray detection device 7, based on the image processing information recorded on the recording medium 14, the image processing section 13 creates image data from the electric signal. The created image data is sent to the liquid crystal panel drive circuit 16 of the liquid crystal display 4.
[0037]
The liquid crystal panel drive circuit 16 issues an instruction for displaying an X-ray image on the liquid crystal panel 15 based on the image data, and causes the liquid crystal panel 15 to display the X-ray image.
[0038]
The X-ray photographer views the X-ray image displayed on the liquid crystal panel 15 of the liquid crystal display 4 from the window section 5, confirms the positioning, and determines whether or not re-imaging is necessary. If re-imaging is necessary, re-imaging is performed by adjusting the X-ray irradiation direction, the position of the subject, and the like. Move the line generator.
[0039]
The X-ray energy stored in the stimulable phosphor sheet 6 of the X-ray cassette 1 in which the positioning or the like has been confirmed is read by a phosphor reader, converted into image data, subjected to image processing, and performed by a doctor. X-ray images that can be interpreted by the computer.
[0040]
In the present embodiment, the photoelectric conversion layer 10 of the X-ray detection device 7 is sensitive to visible light emitted from the intensifying screen 9 irradiated with X-rays and converts this light into an electric signal. Instead of providing the intensifying screen 9, a semiconductor element that directly detects X-rays and converts the X-rays into an electric signal may be arranged on the photoelectric conversion layer 10.
[0041]
Further, it is also possible to use the FPD 3 as a radiation image recording medium to capture a radiation image without using the stimulable phosphor sheet 6, in which case the radiation image reading device may be an FPD controller.
[0042]
Therefore, in the present embodiment, after the X-ray image is captured, the radiation image displayed on the liquid crystal display embedded in the rear panel of the X-ray cassette 1 is checked, so that the stimulus stored in the X-ray cassette 1 is The positioning of the X-ray image recorded on the luminescent phosphor sheet 6 can be confirmed. In addition, since the confirmation can be performed at the imaging location, re-imaging can be performed immediately, and the labor and time for reciprocating between the location where the phosphor reading device is installed and the hospital room can be reduced. Become.
[0043]
[Second embodiment]
A second embodiment of the present invention will be described with reference to FIGS.
[0044]
FIG. 3 is a schematic view showing an embodiment of the radiation image capturing cassette according to the present invention.
[0045]
The X-ray cassette 17, which is a radiographic imaging cassette, has a housing 18. An FPD (Flat Panel Display) 19, which is a confirmation radiation image recording medium, is provided on the inner rear side of the housing 18. Has been. A connection portion 22 for connecting to a portable terminal 21 via a cable 20 is provided on an outer surface of a rear plate of the housing 18.
[0046]
The housing 18 accommodates a stimulable phosphor sheet 23 as a radiation image recording medium, and X-rays transmitted through a subject during radiographic image transmission pass through the front plate of the housing 18 and are stimulable. The light reaches the phosphor sheet 23. The constituent material of the housing 18 is the same as that of the housing 2 described in the first embodiment.
[0047]
As shown in FIG. 4, the FPD 19 includes an X-ray detection device 24 that detects irradiated X-rays and converts the X-rays into an electric signal, and a control device 25 that can handle the electric signal as image data.
[0048]
The X-ray detection device 24 has an intensifying screen 26, a photoelectric conversion layer 27, and a support plate 28, and the configuration and operation thereof are the same as those of the X-ray detection device 7 described in the first embodiment. It is.
[0049]
The control device 25 is connected to a control unit 29 for controlling the entire FPD 19, an image processing unit 30 for processing an electric signal as image data, a recording medium 31 for recording image processing information and the like, and a connection unit 22. A communication unit 32 for transmitting image data to the portable terminal 21 via the cable 20;
[0050]
The control unit 29 controls the image processing unit 30 to create image data based on the electric signal sent from the X-ray detection device 24 and the image processing information recorded on the recording medium 31, and controls the communication unit 32 And the like to transmit image data to the mobile terminal 21 via the.
[0051]
The portable terminal 21 stores a connection unit 33 for receiving image data from the X-ray cassette 17 via the cable 20, a display unit 34 for displaying the received image data, an input unit 35, and the received image data. Storage unit (not shown) and the like. Examples of the mobile terminal 21 include a PDA, a mobile phone, and a notebook computer.
[0052]
Further, the configuration of the radiation image capturing system using the radiation image capturing cassette according to the present invention is the same as that described in the first embodiment.
[0053]
Next, the operation of the second embodiment will be described.
[0054]
The X-ray photographer arranges the imaging region of the subject between the X-ray generator and the X-ray cassette 17, and irradiates the X-ray.
[0055]
The irradiated X-rays pass through the subject, reach the stimulable phosphor sheet 23 loaded in the X-ray cassette 17, and the energy is accumulated in the stimulable phosphor sheet 23.
[0056]
The irradiated X-rays also reach the intensifying screen 26. After an electric signal is formed from the X-rays in the same manner as in the first embodiment, the control device 25 creates image data.
[0057]
The X-ray photographer connects the connection unit 22 of the X-ray cassette 17 and the connection unit 33 of the portable terminal 21 via the cable 20, operates the input unit 35, and transmits image data from the portable terminal 21 to the FPD 19. Send instructions to let him.
[0058]
When receiving the transmission instruction, the control device 25 transmits the created image data to the portable terminal 21 via the cable 20, and the portable terminal 21 having received the image data displays the X-ray image formed from the image data on the display unit. 34. The image data is stored in the storage unit.
[0059]
The X-ray photographer sees the X-ray image displayed on the display unit 34, confirms the positioning, and determines whether re-imaging is necessary. If re-imaging is necessary, re-imaging is performed by adjusting the X-ray irradiation direction, the position of the subject, and the like. Move the line generator.
[0060]
The X-ray energy stored in the stimulable phosphor sheet 23 of the X-ray cassette 17 in which the positioning or the like has been confirmed is read by a phosphor reader, converted into image data, subjected to image processing, and performed by a doctor. X-ray images that can be interpreted by the computer.
[0061]
In the present embodiment, the photoelectric conversion layer 27 of the X-ray detector 24 is sensitive to visible light emitted from the intensifying screen 26 irradiated with X-rays, and converts this light into an electric signal. Instead of providing the intensifying screen 26, a semiconductor element that directly detects X-rays and converts the X-rays into an electric signal may be disposed on the photoelectric conversion layer 27.
[0062]
In addition, a radiographic image can be captured without using the stimulable phosphor sheet 23 by using the FPD 19 as a radiation image recording medium. In this case, the radiation image reading device may be an FPD controller.
[0063]
Therefore, in the present embodiment, after the X-ray image is captured, the radiation image displayed on the display unit 34 of the portable terminal 21 connected to the X-ray cassette 17 via the cable 20 is confirmed, so that the X-ray cassette 17 It is possible to confirm the positioning of the X-ray image recorded on the stimulable phosphor sheet 38 accommodated in the image forming apparatus. In addition, since the confirmation can be performed at the imaging location, re-imaging can be performed immediately, and the labor and time for reciprocating between the location where the phosphor reading device is installed and the hospital room can be reduced. Become.
[0064]
[Third Embodiment]
A third embodiment of the present invention will be described with reference to FIGS.
[0065]
The radiation image capturing system according to the present embodiment includes an X-ray generator 36 as a radiation generator, a stimulable phosphor sheet 38 as a radiation image recording medium accommodated in an X-ray cassette 37, and a radiation image reader. And a portable terminal 40.
[0066]
On the rear surface of the X-ray cassette 37, a bar code 41 indicating ID information for identifying the stimulable phosphor contained is described.
[0067]
As shown in FIGS. 2 and 3, the phosphor reading device 39 has a main body 42, and a stacker 43 for inserting and fixing a plurality of X-ray cassettes 37 is provided above the main body 42. The operation unit 44 includes a CRT display 45 and a touch panel 46 displayed on the surface of the CRT display 45.
[0068]
The stacker 43 is provided with an ID reading unit 47 that reads an ID from the barcode 41 at a position corresponding to the barcode 41 of the fixed X-ray cassette 37. Exciting light is applied to the stimulable phosphor sheet 38 taken out of the X-ray cassette 37 fixed to the stacker 43 by a transport mechanism (not shown) inside the main body 42 and below the stacker 43 to form an image. An image reading unit 48 for creating data is provided.
[0069]
As shown in FIG. 4, the image reading unit 48 includes a control unit 49 for controlling each unit of the phosphor reading device 39, a communication unit 50 for communicating with the mobile terminal 40, imaging information of the subject, A storage unit 51 for storing the created image data is connected. The imaging information stored in the storage unit includes the ID of the subject, imaging conditions for setting the imaging region, image processing parameters, and the like.
[0070]
The control unit 49 controls the transport mechanism, controls the image data read from the X-ray cassette 37 set on the stacker 43 to refer to the imaging information, and communicates with the portable terminal 40 carried by the X-ray photographer. Control for transmitting image data and photographing information via the unit 50 is performed.
[0071]
The portable terminal 40 transmits an instruction to transmit the image data to the phosphor reading device 39, and a transmitting / receiving unit 52 for receiving the image data transmitted from the phosphor reading device 39 and displaying the received image data. The display unit 53 includes an input unit (not shown), a storage unit (not shown) for storing received image data, and the like. Examples of the mobile terminal 40 include a PDA, a mobile phone, and a notebook computer.
[0072]
Next, the operation of the third embodiment will be described.
[0073]
The X-ray photographer registers the ID of the X-ray cassette 37 used for imaging and the imaging information of the subject from the operation unit 44 in the phosphor reading device 39 installed at a specific place such as a radiology department, The ID of the X-ray cassette 37 and the imaging information of the subject are associated with each other.
[0074]
The X-ray photographer uses the X-ray generator 36 and the registered X-ray cassette 37 to travel around a hospital room or the like to perform X-ray imaging on the subject. The photographed X-ray cassette 37 is carried to the installation location of the phosphor reading device 39 installed at a specific location such as a radiology department, and set on the stacker 43.
[0075]
The X-ray photographer operates the touch panel 46 to cause the phosphor reading device 39 to start the reading process, and then carries the portable terminal 40 to resume the tour of the X-ray imaging.
[0076]
In the phosphor reading device 39, the ID is read from the bar code 41 of the X-ray cassette 37 set in the stacker 43 by the ID reading section 47, and the stimulable phosphor sheet 38 is taken out of the X-ray cassette 37 by the transport mechanism. Is moved to the image reading section 48.
[0077]
The image reading section 48 irradiates the stimulable phosphor sheet 38 with excitation light, takes out radiation image information stored in the stimulable phosphor sheet 38 as stimulating light, and performs photoelectric conversion and A / D conversion of the stimulating light. Create digitized image data. The created image data is stored in the storage unit 51.
[0078]
The X-ray photographer sends an image data transmission instruction from the portable terminal 40 to the phosphor reading device 39.
[0079]
Upon receiving the image data transmission instruction, the phosphor reading device 39 creates transmission data from the image data stored in the storage unit 51 and the imaging information of the subject associated with the image data, and Send to 40.
[0080]
The X-ray photographer displays an X-ray image formed from the received image data on the display unit 53, refers to the photographing information, confirms the positioning, and determines whether re-imaging is necessary. If re-imaging is necessary, the patient is moved to the room where the subject is located in consideration of the tour course, and re-imaging is performed.
[0081]
Further, it is possible to use a flat panel display (FPD) for recording a radiation image as image data as a radiation image recording medium, and to perform radiation image capturing without using the stimulable phosphor sheet 38. In that case, a radiation image reading apparatus is used. May be an FPD controller.
[0082]
Therefore, in the present embodiment, it is possible to receive the image data created in the phosphor reading device 39 by the portable terminal 40 and check the radiation image displayed on the display unit 53.
[0083]
【The invention's effect】
As described above, the radiation image capturing cassette according to the first aspect of the present invention causes a radiation image recorded on a confirmation radiation image recording medium to be displayed on an image display device provided in the radiation image capturing cassette. Thereby, the radiation image recorded on the radiation image recording medium can be confirmed.
[0084]
The radiation image capturing cassette according to the second aspect of the present invention causes a portable terminal connected to the radiation image capturing cassette to display the radiation image recorded on the confirmation radiation image recording medium on the radiation image recording medium. Thereby, the radiation image recorded on the radiation image recording medium can be confirmed.
[0085]
Further, in the radiographic image capturing system according to the third aspect of the present invention, the radiographic image forming apparatus is installed by displaying a radiographic image formed by image data created by the radiographic image reading apparatus on a portable terminal. There is an effect that the radiation image recorded on the radiation image recording medium can be confirmed even at a place other than the place.
[Brief description of the drawings]
1 shows an embodiment of a cassette for radiographic imaging according to the present invention, FIG. 1 (a) is a perspective view thereof, and FIG. 1 (b) is a schematic view showing the inside thereof. .
FIG. 2 is a block diagram illustrating a configuration of an FPD and a liquid crystal display.
FIG. 3 is a schematic diagram showing an embodiment of a radiation image capturing system according to the present invention.
FIG. 4 is a block diagram illustrating a configuration of an FPD.
FIG. 5 is a configuration diagram illustrating an embodiment of a radiation image capturing system according to the present invention.
6 is a perspective view of the phosphor reading device shown in FIG.
FIG. 7 is a schematic diagram of an upper part of the phosphor reading device shown in FIG. 6;
FIG. 8 is a block diagram illustrating a configuration of a phosphor reading device.
[Explanation of symbols]
1 X-ray cassette 3 FPD
4 Liquid crystal display 6 Stimulable phosphor sheet 17 X-ray cassette 19 FPD
21 Mobile terminal 23 Stimulable phosphor sheet 37 X-ray cassette 38 Stimulable phosphor sheet 39 Phosphor reader 40 Mobile terminal

Claims (3)

In a portable radiographic imaging cassette for handling a radiographic image recording medium,
A confirmation radiation image recording medium for recording a radiation image equal to the radiation image recorded on the radiation image recording medium as image data,
An image display device that displays the radiation image recorded on the confirmation radiation image recording medium,
A cassette for radiographic imaging, wherein the confirmation radiation image recording medium has a control unit for displaying an image on the image display device based on the image data. In a portable radiographic imaging cassette for handling a radiographic image recording medium,
A radiation image recording medium for confirmation that records a radiation image equal to the radiation image recorded on the radiation image recording medium as image data,
A radiographic image capturing cassette, wherein the confirmation radiographic image recording medium includes a communication unit that transmits the image data to a portable terminal that displays the radiographic image. Radiation comprising: a radiation image recording medium that records a radiation image obtained by irradiating radiation from a radiation generation device; and a radiation image reading device that reads the radiation image recorded on the radiation image recording medium as image data. In an imaging system,
A portable terminal that receives the image data read by the radiation image reading device and displays a radiation image based on the image data,
The radiation image reading apparatus includes a communication unit that transmits image data to the portable terminal.

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