JP2010022733A - Radiation image photographing apparatus and radiation image information processing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a radiation image photographing apparatus and a radiation image information processing method for roughly grasping a state of a subject, for quickly determining whether radiation image information recorded in a radiation conversion panel is excellent image information in terms of diagnostic adequacy, and for efficiently performing photographing processing of the radiation image information. <P>SOLUTION: In the radiation image photographing apparatus 10A, a reading device 16 reads the radiation image information recorded in a storage phosphor panel 38 while thinning out the radiation image information after the subject 34 is irradiated with X rays 32 (after radiation image information is photographed), and the read radiation image information is displayed on a display device 19. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a radiographic imaging apparatus that records radiation image information on a radiation conversion panel by irradiating the radiation conversion panel with radiation from a radiation source through a subject, and the radiation image information recorded on the radiation conversion panel. It relates to the processing method.

  2. Description of the Related Art In the medical field, radiation image capturing apparatuses that irradiate a subject with radiation and guide the radiation transmitted through the subject to a radiation conversion panel to capture radiation image information are widely used. As the radiation conversion panel, for example, a stimulable phosphor panel that accumulates radiation energy as radiation image information in a phosphor, and can extract the radiation image information as stimulated emission light by irradiating with excitation light. Are known. In this case, a visible image can be obtained by supplying the storage phosphor panel on which the radiation image information is recorded to a reading device and performing a reading process.

  By the way, it is desired that radiographic image information can be efficiently imaged on a subject during a round-trip in a hospital. In Patent Document 1, an imaging apparatus is mounted on a movable imaging table, and accumulation is possible. A movable type in which a supply magazine capable of supplying phosphor panels one by one to the imaging apparatus and a storage magazine storing storage phosphor panels on which the radiation image information is recorded are loaded together in the imaging apparatus. A radiographic imaging apparatus has been proposed.

JP-A-1-97945

  At the time of the round visit described above, in addition to efficiently performing radiographic image information imaging processing on the subject, the radiation image information is captured after irradiation (after imaging) at the radiographic image information imaging location (for example, in the patient's room where the subject is present). It is also desired that the state of the subject can be roughly grasped. That is, it is desirable to perform a reading process on the radiation image information recorded on the radiation conversion panel immediately after taking the radiation image information at the round. For this purpose, the visible image obtained by the reading process is an image that can roughly grasp the state of the subject, and the radiation image information recorded on the radiation conversion panel is an image having excellent diagnostic suitability. It is necessary to have an image that can be used to determine whether it is information. That is, the detailed radiographic image information of the subject only needs to be acquired by a reading process using a reading device in the radiology department after the round.

  However, in the technique of Patent Document 1, since only the imaging device is mounted on the imaging table, the state of the subject cannot be grasped during the round and the radiographic image information is an image having excellent diagnostic suitability. It is also impossible to determine whether the information is information.

  The present invention has been made in order to solve the above-described problems, and roughly grasps the state of a subject, and the radiographic image information recorded on the radiation conversion panel is image information excellent in diagnostic suitability. It is an object of the present invention to provide a radiographic image capturing apparatus and a radiographic image information processing method that can quickly determine whether or not there is a radiographic image information and can efficiently perform radiographic image information imaging processing.

  A radiographic imaging device according to the present invention includes a radiation source that outputs radiation, a control device that controls the radiation source, and radiation conversion that records the radiation emitted from the radiation source through a subject as radiation image information. A panel, a reading device that reads out the radiation image information recorded on the radiation conversion panel, a display device that displays the radiation image information read out by thinning, the radiation source, the control device, the reading device, and And a carriage that is configured to be movable with the display device mounted thereon.

  Further, the radiation image information processing method according to the present invention irradiates a radiation conversion panel with radiation from a radiation source through a subject, records the irradiated radiation as radiation image information on the radiation conversion panel, and performs the radiation conversion. The radiation image information recorded on the panel is thinned and read, and the thinned and read radiation image information is displayed on a display device.

  According to the present invention, after radiation irradiation (after imaging radiographic image information), the radiographic image information recorded on the radiation conversion panel is thinned and read by a reader, and the read radiographic image information is displayed on a display device. Therefore, at the time of a round trip in a hospital, etc., it is possible to roughly grasp the state of the subject and quickly determine whether or not the radiation image information is image information excellent in diagnostic suitability, The radiographic image information can be efficiently imaged.

  As shown in FIG. 1, the radiographic imaging apparatus 10A according to the first embodiment includes a carriage 12 that can move in a hospital room or the like by providing wheels 14, and a reading device 16 that is mounted on the carriage 12. Console 18, display device 19, X-ray source control device 20, transceiver 22, battery 24 and power source 26, X-ray source (radiation source) 30 mounted on carriage 12 via arm member 28, and storage fluorescence And a cassette (radiation converter) 36 for housing a body panel (radiation conversion panel) 38.

  The console 18 constituting the control device together with the X-ray source control device 20 inputs imaging conditions for imaging radiographic image information, or sets the imaging conditions by acquiring the imaging conditions from the outside. . The X-ray source control device 20 controls the X-ray source 30 according to the imaging conditions supplied from the console 18. The X-ray source 30 irradiates the subject 34 with X-rays 32 based on the control from the X-ray source control device 20. The stimulable phosphor panel 38 in the cassette 36 accumulates and records X-rays 32 transmitted through the subject 34 as radiation image information. When the cassette 36 is loaded, the reading device 16 reads the radiation image information accumulated and recorded on the stimulable phosphor panel 38 accommodated in the cassette 36. The display device 19 displays a visible image based on the radiation image information read by the reading device 16. The transceiver 22 can acquire necessary information from the outside, and can further transmit the radiation image information read by the reading device 16 to the outside. The battery 24 supplies power to the reading device 16, the console 18, the display device 19, the X-ray source control device 20, the transceiver 22, and the X-ray source 30. A power source (charger) 26 is connected to the battery 24, and the battery 24 is charged as necessary.

  As shown in FIG. 2, the cassette 36 loaded in the reading device 16 has a lid member 40 that can be freely opened and closed, and a barcode (not shown) on which ID information for identifying the cassette 36 is recorded. Yes.

  The reading device 16 includes a cassette loading unit 42 in the upper part of the casing 41, and a lid member 44 that is slidable in the direction of the arrow is disposed in the cassette loading unit 42. The cassette 36 in which the stimulable phosphor panel 38 in which the radiation image information is recorded is loaded into the cassette loading unit 42 with the lid member 40 facing down. The casing 41 is formed of a material containing heavy metal such as lead so as to prevent the entry of X-rays 32 (see FIG. 1) from the outside.

  The cassette loading unit 42 includes a barcode reader 46 that reads a barcode attached to the cassette 36, an unlocking mechanism 48 that unlocks the lid member 40 of the cassette 36, and a storage phosphor panel 38 from the cassette 36. An adsorbing board 50 that adsorbs and takes out the liquid and a nip roller 52 that sandwiches and conveys the stimulable phosphor panel 38 taken out by the adsorbing board 50 are disposed.

  A plurality of transport rollers 54 a to 54 g and a plurality of guide plates 56 a to 56 f are arranged in series with the nip roller 52, and the curved transport path 60 is configured by these. The curved conveyance path 60 extends downward from the cassette loading section 42, then becomes substantially horizontal at the bottom, and then extends substantially vertically upward. Note that each position of the curved conveyance path 60 functions as a retracting unit that retracts the stimulable phosphor panel 38 during imaging using the X-ray source 30. In addition, sensors 58 a to 58 d for detecting the stimulable phosphor panel 38 to be conveyed are disposed at predetermined portions of the curved conveyance path 60.

  Between the nip roller 52 and the conveyance roller 54a, an erasing unit 62 for erasing radiation image information remaining on the stimulable phosphor panel 38 that has been read is disposed. The erasing unit 62 has a plurality of erasing light sources 64 composed of cold cathode tubes that output erasing light.

  On the other hand, a platen roller 70 is disposed between the transport rollers 54d and 54e disposed at the lowermost portion of the curved transport path 60. A scanning unit 66 that reads the radiation image information accumulated and recorded on the stimulable phosphor panel 38 is disposed above the platen roller 70.

  The scanning unit 66 derives a laser beam 78 that is excitation light and scans the stimulable phosphor panel 38 in a direction (main scanning direction) orthogonal to the transport direction (sub-scanning direction), and the laser beam 78. And a photomultiplier for converting the photostimulated light collected by the light guide 72 into an electrical signal. 74. A condensing mirror 76 for increasing the condensing efficiency of the photostimulated luminescent light is disposed close to one end of the condensing guide 72.

  FIG. 3 is a control block diagram of the radiographic image capturing apparatus 10A. The X-ray source control device 20 has an X-ray irradiation switch 94 for driving the X-ray source 30 by an operation of a doctor or a radiographer or the like and irradiating a subject 34 such as a patient with an X-ray 32 (see FIG. 1). Is connected.

  The reading device 16 includes a reading device control unit 80. The reading device control unit 80 includes a power switch 82 of the reading device 16, a cassette discharge button 88 for discharging the cassette 36 from the reading device 16, and a cassette 36. A bar code reader 46 for reading a bar code, a scanning unit controller 84 for controlling the scanning unit 66 (see FIG. 2), an erasing unit controller 86 for controlling the erasing unit 62, and a storage phosphor by controlling the curved conveyance path 60. The panel transport controller 90 that transports the panel 38 and the scanning unit 66 perform predetermined image processing on the radiation image information read from the stimulable phosphor panel 38, thereby allowing the operator to perform the display device 19. An image processing unit (image processing means) 92 that converts a visible image that can be confirmed is connected.

  In this case, when the operator moves the carriage 12 into the patient's room and performs a radiographic image information imaging process on the subject 34 (patient) in the patient's room, the scanning unit controller 84 stores the stimulable phosphor. The scanning unit 66 is controlled so that the radiation image information accumulated and recorded on the panel 38 is read out. That is, the scanning unit control unit 84 determines that the number of scanning laser beams 78 scanned in the direction orthogonal to the transport direction is based on the number during normal reading (the number of scanning necessary for obtaining detailed radiation image information). The excitation unit 68 of the scanning unit 66 is controlled so that the number of the scanning units 66 is small. Accordingly, the photomultiplier 74 outputs an electrical signal indicating the radiographic image information read by thinning out to the image processing unit 92, and the image processing unit 92 performs image processing on the input radiographic image information, and displays it. The device 19 displays a visible image after image processing (a visible image indicating the radiographic image information read by thinning out).

  In addition, at the time of the above-mentioned round trip, in addition to efficiently performing radiographic image information imaging processing on the subject 34, radiographic image information is captured (X-ray 32) at the radiographic image information imaging location (in the hospital room where the subject 34 is located). It is also desired that the state of the subject 34 can be roughly grasped after the irradiation. That is, it is desirable to immediately perform a reading process (reading process for reading out the radiation image information) with respect to the radiation image information recorded on the stimulable phosphor panel 38 after photographing the radiation image information at the round. For this purpose, the visible image obtained by the reading process is an image that can roughly grasp the state of the subject 34, and the radiation image information recorded on the stimulable phosphor panel 38 has excellent diagnostic suitability. It is necessary for the image to be able to determine whether it is image information. In other words, detailed radiological image information of the subject 34 only needs to be acquired by a reading process based on the number of scans at the time of normal reading using a reading device (or reading device 16) in the radiology department after the round visit.

  The radiographic image capturing apparatus 10A according to the first embodiment is basically configured as described above. Next, with respect to the operation (processing method of radiographic image information), FIGS. This will be described with reference to the flowchart of FIG.

  First, the operator moves the radiographic image capturing apparatus 10A together with the carriage 12 to a place where the subject 34 is located (for example, a hospital room), turns on the power of the radiographic image capturing apparatus 10A, and prepares for imaging.

  In this case, the operator operates the console 18 to input the imaging condition such as the name of the subject 34 to be imaged during the round trip, the imaging method, etc., or obtains the imaging conditions from the outside via the transceiver 22. The cassette 36 that records the radiographic image information of the subject 34 is selected, and the barcode information attached to the cassette 36 is read, whereby the ID information of the cassette 36 is acquired. In this way, when the imaging conditions and the ID information of the cassette 36 are set and preparation for imaging is completed, the X-ray source control device 20 outputs an imaging preparation completion signal to the reading device control unit 80 of the reading device 16.

  When the imaging preparation completion signal is input from the X-ray source control device 20, the reading device control unit 80 confirms whether or not the cassette 36 containing the stimulable phosphor panel 38 is loaded in the cassette loading unit 42. . The presence / absence of the cassette 36 can be determined, for example, by whether or not the barcode reader 46 disposed in the cassette loading unit 42 can read the barcode of the cassette 36.

  When it is determined that the cassette 36 is loaded in the cassette loading unit 42, the reader control unit 80 checks whether or not the stimulable phosphor panel 38 is accommodated in the cassette 36. In this case, in the reading device 16, only one storage phosphor panel 38 is supplied from the cassette 36 loaded in the cassette loading unit 42 to the inside of the casing 41 and processed. Therefore, for example, the panel conveyance control unit 90 does not control the curved conveyance path 60, or the sensors 58 a to 58 d disposed in predetermined portions of the curved conveyance path 60 detect the stimulable phosphor panel 38. If not, the reader control unit 80 can determine that the stimulable phosphor panel 38 is housed in the cassette 36.

  Here, when the stimulable phosphor panel 38 is accommodated in the cassette 36 loaded in the cassette loading unit 42 and the lid member 40 is closed, the locked state of the cassette 36 with respect to the cassette loading unit 42 is released. In addition, the operator can remove the cassette 36 from the cassette loading unit 42 after the operation of the cassette ejection button 88 and place it directly under the subject 34 facing the X-ray source 30 as shown in FIG. it can. In this case, when the reader control unit 80 confirms that the stimulable phosphor panel 38 does not exist in the cassette loading unit 42, that is, the cassette 36 loaded with the stimulable phosphor panel 38 does not exist, the X-ray source A photographing permission signal is output to the control device 20.

  The X-ray source control device 20 drives the X-ray source 30 and receives radiation image information when a shot signal is input from the X-ray irradiation switch 94 due to the operation of the operator after the imaging permission signal is input. Is taken (step S1 in FIG. 4). The X-ray 32 output from the X-ray source 30 passes through the subject 34 and is irradiated onto the stimulable phosphor panel 38 accommodated in the cassette 36, whereby radiation image information is accumulated and recorded on the stimulable phosphor panel 38. Is done. When the imaging is completed, the X-ray source control device 20 outputs an imaging end signal to the reading device control unit 80.

  Next, the operator loads the reading device 16 with a cassette 36 containing a stimulable phosphor panel 38 on which radiation image information is accumulated and recorded. As a result, the barcode reader 46 reads the barcode attached to the cassette 36 to acquire the ID information of the cassette 36, and then the lock of the lid member 40 is released by the lock release mechanism 48 and the lid is opened. Next, the stimulable phosphor panel 38 in the cassette 36 is sucked and taken out by the suction board 50 and supplied to the curved conveyance path 60 by the nip roller 52. Conveying rollers 54 a to 54 g constituting the curved conveying path 60 convey the stimulable phosphor panel 38.

  The stimulable phosphor panel 38 is sub-scanned and transported between the transport rollers 54d and 54e, and the laser beam 78 from the excitation unit 68 scans the stimulable phosphor panel 38, thereby reading the radiation image information. Is called. In other words, when the stimulable phosphor panel 38 is irradiated with the laser beam 78 output from the excitation unit 68, stimulated emission light corresponding to the radiation image information is output from the stimulable phosphor panel 38.

  In this case, the excitation unit 68 irradiates the stimulable phosphor panel 38 with a scanning number of laser beams 78 smaller than the number of scannings during normal reading under the control of the scanning unit control unit 84, and the stimulated emission light is Then, the light is guided to the photomultiplier 74 through the light collecting guide 72, converted into radiation image information as an electrical signal, and output to the image processing unit 92. As a result, the radiation image information output to the image processing unit 92 is output as image information read out by the scanning unit 66 as compared with the image information at the time of normal reading (step S2).

  The step S2 will be specifically described. During normal reading, the storage phosphor panel 38 is irradiated with the laser beam 78 at a scanning interval of about 5 lines / mm to perform reading processing. In FIG. 2, the storage phosphor panel 38 is irradiated with the laser beam 78 at a scanning interval of about 0.5 lines / mm to perform reading processing. As described above, even if the scanning interval of the laser beam 78 with respect to the stimulable phosphor panel 38 is changed from 5 / mm to 0.5 / mm and the radiation image information is thinned and read, the thinned and read radiation is obtained. The visible image based on the image information is an image that can roughly grasp the state of the subject 34. Therefore, even if the resolution of the radiographic image information read by thinning is lowered, the state of the subject 34 can be roughly grasped without any problem. The above specific numerical values are an example, and if the positioning and blurring can be confirmed, the resolution can be further reduced.

  The stimulable phosphor panel 38 from which the radiation image information is thinned and read is once transported to the guide plate 56f side, and then returned to the cassette loading unit 42 side again via the lower part of the scanning unit 66. Then, it is stored in the cassette 36 using the nip roller 52 and the suction disk 50, the lid member 40 is closed, and the cassette discharge button 88 is operated to be removed from the cassette loading section 42. In other words, in the extracted cassette 36, a stimulable phosphor panel 38 in which the radiation image information after being thinned and read is stored.

  Next, the image processing unit 92 generates a visible image including the radiation image information read out by the thinning and the ID information of the cassette 36, and outputs the visible image to the display device 19. The display device 19 outputs the visible image. Display (step S3).

  The operator roughly grasps the state of the subject 34 based on the visible image displayed on the display device 19 (the radiation image information of the subject 34 read out by thinning out), and the radiation image read out by thinning out the subject. It is determined whether or not the radiographic image information that is the source of information is image information that is excellent in diagnostic suitability, that is, whether or not re-imaging is necessary because it is radiation image information that is not superior in diagnostic suitability. (Step S4).

  In step S4, since the radiographic image information is not excellent in diagnostic suitability, when re-imaging is necessary (YES in step S4), the operator performs the processes in steps S1 to S3 on the same subject 34. Try again. Further, in step S4, when the radiological image information is excellent in diagnostic suitability and re-imaging is not required (NO in step S4), the operator then applies to all the subjects 34 that are imaging targets. It is determined whether or not shooting has been performed (step S5). If there is a subject 34 that has not been shot yet (NO in step S5), it is determined that shooting is performed on the subject 34 (step S6). Steps S1 to S4 are executed. Furthermore, when imaging for all the subjects 34 has been completed in step S5 (YES in step S5), the operator finishes the round and returns to the radiology department in the hospital, and reads the radiology arranged in the radiology department. Using the apparatus or the reading device 16, a reading process is performed on the stimulable phosphor panel 38 in which the remaining radiation image information after the thinning-out reading is performed with the number of scanning laser beams 78 during normal reading. Perform (step S7).

  If re-imaging is necessary in step S4, the operator uses the new cassette 36 containing the stimulable phosphor panel 38 on which no radiation image information is recorded, and uses the new cassette 36 to store the radiation image information for the same subject 34. Re-shoot. Alternatively, erasing light is irradiated from the erasing light source 64 of the erasing unit 62 to the stimulable phosphor panel 38 on which the remaining radiation image information after being read out is recorded, and the remaining radiation image information is erased. Thereafter, the stimulable phosphor panel 38 may be housed in the cassette 36, and the same subject 34 may be re-photographed using the cassette 36.

  In the determination process in step S5, the subject 34 to be photographed at the round is registered (set) in advance, and if there is a subject 34 that has not yet been photographed, information on the subject 34 is displayed on the display device 19. By doing so, the operator may be notified that the shooting of all the subjects 34 has not been completed.

  Furthermore, in step S7, the case where the remaining radiographic image information is read using the radiology reading device or the reading device 16 in the radiology department has been described, but the remaining radiographic image information is read and read by the reading device 16. The radiographic image information may be transmitted from the transceiver 22 to the radiology department by wireless communication.

  Furthermore, the radiographic image information read out by thinning out in step S3 is stored in a storage means (not shown) in the reading device 16, and in step S7, the remaining radiographic image information read out and the radiographic image information read out by thinning out are stored. More detailed radiation image information may be obtained by combining the image processing unit 92 with image processing.

  As described above, according to the radiographic image capturing apparatus 10A and the radiographic image information processing method according to the first embodiment, the stimulable phosphor panel 38 after irradiation with X-rays 32 (after radiographic image information is captured). The radiographic image information recorded in the image is read out by the reading device 16 and the read radiographic image information is displayed on the display device 19. The radiographic image information recorded on the stimulable phosphor panel 38 can be promptly determined whether or not the radiographic image information is excellent in diagnostic suitability, and the radiographic image information can be efficiently captured. It can be done well.

  Further, in the radiology department after the round visit, detailed radiation image information can be easily obtained by reading the remaining radiation image information from the storage phosphor panel 38 in which the remaining radiation image information after thinning and reading is recorded. Can get to.

  Further, based on the visible image displayed on the display device 19 (radiation image information read out by thinning out), it is determined whether or not the subject 34 is again irradiated with the X-ray 32 to perform re-imaging, and re-imaging is determined to be unnecessary. When the radiographic image information is read, the remaining radiographic image information is read or the other subject 34 is irradiated with X-rays 32. On the other hand, when it is determined that re-imaging is necessary, the same subject 34 is irradiated with the X-rays 32. By irradiating again, it is possible to quickly determine whether or not the radiographic image information recorded on the stimulable phosphor panel 38 is image information with excellent diagnostic suitability. As a result, it is possible to quickly shift to imaging, and as a result, radiographic image information imaging processing and reading processing can be performed efficiently.

  Further, an X-ray source 30, a reading device 16, a console 18 for setting imaging conditions, an X-ray source control device 20 for controlling the X-ray source 30 based on the imaging conditions, and a display device 19 and power is supplied to the mounted devices from the battery 24, so that the imaging process and the reading process of the subject 34 during the rounds can be easily performed.

  Further, the reading device 16 includes an image processing unit 92 that performs image processing on the radiographic image information read by thinning out and generates a visible image that can be confirmed by the operator via the display device 19. After the radiographic image information is captured, the radiographic image information (visible image) read by the thinning can be displayed on the display device 19 promptly.

  Furthermore, the reading device 16 is configured so that the cassette 36 can be loaded, and the storage phosphor panel 38 is taken out from the cassette 36 and the radiation image information recorded on the extracted storage phosphor panel 38 is thinned out and read. The radiation image information can be efficiently read from the stimulable phosphor panel 38 accommodated in the cassette 36.

  Next, a radiographic imaging apparatus 10B according to the second embodiment will be described with reference to FIGS. Note that in the second embodiment, the same components as those in the radiographic imaging apparatus 10A according to the first embodiment (see FIGS. 1 to 4) are denoted by the same reference numerals, and detailed description thereof is omitted.

  In the radiographic image capturing apparatus 10B, the reading apparatus 100 is a horizontal type reading apparatus, the cassette 36 that stores the stimulable phosphor panel 38 on which the radiographic image information is recorded, and the remaining radiographic image information after thinning out and reading. Is different from the radiographic image capturing apparatus 10A according to the first embodiment in that the panel storage magazine 102 that can store the stimulable phosphor panel 38 on which is recorded can be loaded together.

  As shown in FIG. 6, the curved conveyance path 60 in the reading apparatus 100 is generally configured by rotating the substantially U-shaped curved conveyance path 60 in the reading apparatus 16 shown in FIG. 2 by 90 °. Yes. In this case, a cassette loading section 42 for loading the cassette 36 is provided on the upper side of the casing 41 side, and a magazine loading section 104 for loading the panel storage magazine 102 is provided on the lower side. Accordingly, in the magazine loading section 104, similarly to the cassette loading section 42, a lid member 106 slidable in the direction of the arrow, a barcode reader 110 for reading a barcode (not shown) mounted on the panel storage magazine 102, a panel storage magazine An unlocking mechanism 112 that unlocks the lid member 108 of the 102, an adsorption disk 114 that adsorbs the stimulable phosphor panel 38 on which the radiographic image information that has been read by thinning is recorded, and stores it in the panel storage magazine 102; In addition, a nip roller 116 is provided which cooperates with the suction plate 114 to sandwich and convey the stimulable phosphor panel 38 to the panel storage magazine 102 side.

  In the radiographic imaging apparatus 10B according to the second embodiment, the stimulable phosphor panel 38 after thinning out and reading the radiographic image information is stored in the panel storage magazine 102. When the radiographic image information is acquired, the reading process is automatically performed only by loading the panel storage magazine 102 into the reading apparatus or the reading apparatus 100 provided in the radiology department. As a result, the operator involved in the reading process can perform the reading process. The burden is reduced and the reading process can be performed efficiently. Further, during the round-trip, when it is necessary to re-image the subject 34 or to image another subject 34, the cassette 36 containing the stimulable phosphor panel 38 after reading out the radiation image information is read out, It is possible to reliably prevent another radiation image information from being recorded on the stimulable phosphor panel 38 by mistake when used for the re-imaging or the imaging.

  In addition, this invention is not limited to embodiment mentioned above, Of course, it can change freely in the range which does not deviate from the main point of this invention.

  For example, radiation image information can also be acquired using a light conversion type radiation detector. In this light conversion type radiation detector, when radiation is incident on each solid detection element (radiation conversion panel) arranged in a matrix, an electrostatic latent image corresponding to the dose is accumulated and recorded on the solid detection element. When reading the electrostatic latent image, the radiation detector is irradiated with reading light, and the value of the generated current is acquired as radiation image information (see Japanese Patent Application Laid-Open No. 2000-105297). Even in this case, it is possible to read out the radiation image information by thinning out during the round visit, and in the radiology department after the round trip, the remaining radiological image information can be read in detail by the number of scans at the time of normal reading.

It is a lineblock diagram of a radiographic imaging device concerning a 1st embodiment. It is an internal block diagram of the reader of FIG. It is a control block diagram of the radiographic imaging apparatus of FIG. It is a flowchart which shows the imaging process by the radiographic imaging apparatus of FIG. 1, and the reading process of radiation image information. It is a block diagram of the radiographic imaging apparatus which concerns on 2nd Embodiment. It is an internal block diagram of the reader of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10A, 10B ... Radiation imaging device 12 ... Cart 16,100 ... Reading device 18 ... Console 19 ... Display device 20 ... X-ray source control device 22 ... Transceiver 24 ... Battery 30 ... X-ray source 32 ... X-ray 34 ... Subject 36 ... Cassette 38 ... Storage phosphor panel 66 ... Scanning unit 84 ... Scanning unit control unit 92 ... Image processing unit 102 ... Panel storage magazine

Claims (10)

A radiation source that outputs radiation;
A control device for controlling the radiation source;
A radiation conversion panel that records the radiation emitted from the radiation source through the subject as radiation image information;
A reading device that reads out the radiation image information recorded on the radiation conversion panel;
A display device for displaying the radiographic image information read by thinning;
A carriage configured to be movable by mounting the radiation source, the control device, the reading device, and the display device;
A radiographic imaging apparatus comprising: The apparatus of claim 1.
A radiographic imaging apparatus, further comprising a battery mounted on the carriage and supplying power to the radiation source, the control device, the reading device, and the display device. The apparatus according to claim 1 or 2,
The radiation image capturing apparatus, wherein the radiation conversion panel is a stimulable phosphor panel. The device according to any one of claims 1 to 3,
The control device includes a console for setting predetermined imaging conditions and a radiation source control device for controlling the radiation source based on the imaging conditions set by the console. . In the apparatus of any one of Claims 1-4,
The radiographic image capturing apparatus according to claim 1, further comprising: an image processing unit configured to perform an image process on the radiographic image information read out by thinning and thereby make an image that can be confirmed via the display device. In the apparatus of any one of Claims 1-5,
A radiation converter that houses the radiation conversion panel;
The reading device is configured to be capable of loading the radiation converter, takes out the radiation conversion panel from the radiation converter, and reads out the radiation image information recorded on the taken out radiation conversion panel. A radiographic imaging device. The apparatus of claim 6.
A panel storage magazine capable of storing the radiation conversion panel;
The reader is configured to be able to load both the radiation converter and the panel storage magazine, and stores the radiation conversion panel after reading out the radiation image information in the panel storage magazine. Radiation imaging device. Irradiate the radiation conversion panel from the radiation source through the subject,
Record the irradiated radiation as radiation image information on the radiation conversion panel,
Read out the radiation image information recorded in the radiation conversion panel,
A radiographic image information processing method, wherein the radiographic image information read out by thinning is displayed on a display device. The method of claim 8, wherein
A method of processing radiation image information, comprising: reading the remaining radiation image information from the radiation conversion panel after thinning and reading the radiation image information. The method of claim 9, wherein
Based on the radiation image information read by thinning and displayed on the display device, determine whether to re-irradiate the subject with the radiation and perform re-imaging,
When it is determined that the re-imaging is unnecessary, the remaining radiographic image information is read, or the other subject is irradiated with the radiation. A method of processing radiation image information in which the radiation is irradiated again.

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