JP6202789B2 - Medical image diagnostic apparatus and control method thereof - Google Patents

Medical image diagnostic apparatus and control method thereof Download PDF

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JP6202789B2
JP6202789B2 JP2012181467A JP2012181467A JP6202789B2 JP 6202789 B2 JP6202789 B2 JP 6202789B2 JP 2012181467 A JP2012181467 A JP 2012181467A JP 2012181467 A JP2012181467 A JP 2012181467A JP 6202789 B2 JP6202789 B2 JP 6202789B2
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JP2014036787A (en
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恒人 平松
恒人 平松
昌夫 袴塚
昌夫 袴塚
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東芝メディカルシステムズ株式会社
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Description

  Embodiments described herein relate generally to a medical image diagnostic apparatus that scans a subject to generate a medical image and a control method thereof.

  In order to always normally operate medical diagnostic imaging apparatuses such as an X-ray CT (Computer Tomography) apparatus, a magnetic resonance imaging (MRI) apparatus, and a positron emission tomography (PET) apparatus, In addition to maintenance inspections performed by the device manufacturer, it is important to perform daily inspection operations such as start-up inspections performed daily by the user.

  For example, routine inspection work of an X-ray CT apparatus is performed using a quality evaluation phantom such as CATPHAN (registered trademark) or ACR (registered trademark). In such inspection work using a phantom, the phantom projection data is collected by the gantry device using a scan protocol according to the phantom, and a phantom tomogram or the like based on the projection data and a reconstruction protocol according to the phantom. Are reconstructed, and an analysis corresponding to the phantom is performed on the tomographic image or the like. There are many types of quality evaluation phantoms, and they are selected according to the purpose of the inspection work.

  In order to carry out appropriate inspection work according to the phantom, it is necessary to be familiar with the scan protocol, reconstruction protocol, analysis contents, and the like as described above. It is difficult for an operator with a low training level to know which type of phantom is used according to the purpose of the inspection work and what kind of protocol and analysis content should be used for the inspection work. Normally, manuals describing phantom types and protocols according to the purpose of inspection work are prepared. However, since the items described in such manuals are diverse, it takes a considerable amount of time to obtain the necessary information. . Even if a skilled person is in charge of inspection work, it is cumbersome and time-consuming to set each protocol according to the phantom and to analyze the tomographic image as the imaging result. .

JP 2008-113803 A

  The problem to be solved by the present invention is to improve the efficiency of the inspection work using the phantom, save the user's trouble, and perform the inspection work with an appropriate protocol and the control thereof Is to provide a method.

The medical image diagnostic apparatus according to one embodiment, a photographing unit for collecting data of a subject by scanning the subject, the test image generated based on data obtained by scanning the phantom by the imaging unit recognizing phantom recognition unit a type of the phantom based on the shape of the phantom contained, with respect to the type of phantom, the scan protocol for scanning the phantom from information associated with the imaging unit, the phantom recognition an acquisition unit that acquires a scan protocol that is associated with the recognized type by part, the imaging unit controls in accordance with the acquired scan protocol by the acquisition unit, and a control unit for scanning the front notated Antomu, before notated Based on the data obtained by scanning the phantom, A reconstruction processing unit constituting the includes image reconstructed by the reconstruction processing unit, or an output unit for outputting the information obtained by analyzing the image.

Also, the control method of the medical image diagnostic apparatus according to the embodiment includes the type of the phantom based on the shape of the phantom included in the test image generated based on the data obtained by scanning the phantom by the imaging unit. The phantom recognition step for recognizing the phantom and the scan protocol associated with the type recognized in the phantom recognition step from the information relating the phantom type to the scan protocol for scanning the phantom in the photographing unit an acquisition step of acquiring, said the imaging unit controls in accordance with the scan protocol acquired by the acquiring step, before a control step of scanning the notated Antomu, based on data obtained by scanning a pre-notated Antomu, Reconstruct the image about the phantom A reconstruction step, the image reconstructed at reconstruction step, or includes an output step of outputting the information obtained by analyzing the image.

The block diagram which shows the principal part structure of the X-ray CT apparatus common to each embodiment. The figure for demonstrating the scanning protocol table common to each embodiment. The figure for demonstrating the reconstruction protocol table common to each embodiment. The figure for demonstrating the analysis content table common to each embodiment. The figure for demonstrating the phantom recognition part which concerns on 1st Embodiment. 6 is a flowchart showing the operation of the X-ray CT apparatus according to the embodiment. The figure for demonstrating the phantom recognition part which concerns on 2nd Embodiment.

Several embodiments will be described with reference to the drawings.
In each embodiment, an X-ray CT apparatus and a control method of the apparatus are disclosed as an example of a medical image diagnostic apparatus and a control method thereof. However, the medical image diagnostic apparatus may be another apparatus such as a magnetic resonance imaging apparatus or a positron tomography apparatus.

  The X-ray CT system imaging system includes a rotation / rotation (rotate / rotate) type in which an X-ray tube and a detector system are integrally rotated around a subject, and a large number of detection elements in a ring shape. There are various types such as a fixed / rotation type (STATIONARY / ROTATE) type in which only the X-ray tube is rotated around the subject, and the present invention can be applied to any type. Here, a rotation / rotation type X-ray CT apparatus, which currently occupies the mainstream, will be described as an example.

[Main components of X-ray CT system]
First, the principal part structure of the X-ray CT apparatus 1 common to each embodiment is demonstrated using FIGS. 1-4.
FIG. 1 is a block diagram showing a main configuration of the X-ray CT apparatus 1. As shown in FIG. 1, the X-ray CT apparatus 1 includes a gantry device 2, a couch device 3, and a console device 4.

  The gantry device 2 includes an X-ray tube 5, an X-ray detector 6, an X-ray diaphragm device 7, a rotating frame 8, a high voltage generation unit 9, a gantry driving mechanism unit 10, a gantry / bed control unit 11, and data collection Part 12 and the like. The gantry device 2 has an opening 13 as an imaging space into which the subject P is sent.

  The X-ray tube 5 and the X-ray detector 6 are attached to the rotating frame 8 in a state of facing each other with the opening 13 interposed therebetween. The gantry drive mechanism unit 10 includes a structural mechanism that rotates the rotating frame 8 and a motor that operates the mechanism. The rotation of the rotating frame 8 rotates around the subject P conveyed into the opening 13 with the X-ray tube 5 and the X-ray detector 6 facing each other.

  The high voltage generator 9 includes a high voltage transformer, a filament heating converter, a rectifier, a high voltage switch, and the like, and converts the operating power supplied from the outside of the gantry device 2 to a high voltage to convert the X-ray tube. Supply to sphere 5.

  The X-ray tube 5 receives an application of tube voltage and a supply of tube current from the high voltage generator 9 to generate X-rays. The X-ray detector 6 is a two-dimensional array type detector (so-called multi-slice type detector) and has a plurality of X-ray detection elements arranged in a two-dimensional manner.

  The X-ray diaphragm device 7 has an X-ray shielding plate, and controls the X-ray shielding plate to adjust the X-ray irradiation range irradiated to the subject P.

  The data acquisition unit (DAS) 14 reads an electrical signal from each X-ray detection element of the X-ray detector 6, amplifies the read electrical signal, and converts the amplified electrical signal into a digital signal. The converted digital signal is called projection data.

  The units included in the gantry device 2 such as the X-ray tube 5, the X-ray detector 6, and the data collection unit 12 scan the subject P and collect data (projection data) reflecting the internal form of the subject P. An imaging unit is configured.

  The couch device 3 includes a couchtop 30 on which the subject P is placed, a couchtop support unit 31 that supports the couchtop 30, a couch drive mechanism unit 32, and the like.

  The bed driving mechanism 32 includes a structural mechanism that moves the top board 30 in the horizontal and vertical directions with respect to the placement surface, and a motor that operates the mechanism.

  The gantry / bed controller 11 includes a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and the like. Each part of the bed apparatus 3 is controlled.

  The console device 4 includes a console control unit 40, a preprocessing unit 41, a reconstruction processing unit 42, an image storage unit 43, an image processing unit 44, a display unit 45, an input unit 46, a phantom database (DB) 47, an acquisition unit 48, An analysis unit 49, an editing unit 50, and the like are provided.

  The console control unit 40 includes a CPU, a ROM, a RAM, and the like, and controls each unit included in the console device 4.

  The preprocessing unit 41 receives projection data from the data collection unit 14 and performs preprocessing such as sensitivity correction and X-ray intensity correction.

  The reconstruction processing unit 42 includes parameters such as a reconstruction slice thickness, a reconstruction interval used for reconstruction, a reconstruction function for changing contrast resolution and spatial resolution in accordance with an organ to be imaged and an inspection purpose, and a reconstruction function. In accordance with a reconstruction protocol defined by the type of algorithm used for the configuration, the tomographic image and volume image of the subject are reconstructed using the projection data after the preprocessing is performed by the preprocessing unit 41.

  The image storage unit 43 includes projection data (raw data) sent from the data collection unit 14, projection data preprocessed by the preprocessing unit 41, and a reconstructed image generated by the reconstruction processing unit 42. Memorize etc.

  The image processing unit 44 performs image processing for display such as window conversion and RGB processing on the reconstructed image stored in the image storage unit 43 and outputs the processed image to the display unit 45. Further, the image processing unit 44 generates a so-called pseudo three-dimensional image such as a tomographic image of an arbitrary cross section, a projection image from an arbitrary direction, or a three-dimensional surface image based on an instruction from the operator, and outputs the generated image to the display unit 45. The output image data is displayed on the display unit 45 as an X-ray CT image.

  The input unit 46 includes a keyboard, various switches, a mouse, and the like, and is used to input various scanning conditions such as a scanning protocol and a reconstruction protocol, and to input an inspection work start instruction described later.

  The phantom database 47 is composed of information related to a quality evaluation phantom used for inspection work of the X-ray CT apparatus 1.

  The phantom database 47 includes a scan protocol table t1 shown in FIG. 2, a reconstruction protocol table t2 shown in FIG. 3, an analysis content table t3 shown in FIG.

  As shown in FIG. 2, the scan protocol table t1 is a table in which a scan protocol is associated with a phantom identification code. The phantom identification code is a unique identifier assigned for each type of phantom for quality evaluation. The quality evaluation phantom is, for example, a cylindrical housing filled with a module formed of a fluid such as water or a resin, for evaluation of low contrast resolution, evaluation of high contrast resolution, space They can be used for various purposes, such as for evaluating uniformity and for evaluating positioning accuracy by the subject positioning system. The scan protocol includes various kinds of phantom projection data required for collecting the phantom projection data, such as the tube voltage and tube current applied to the X-ray tube 5, the scan speed that is the rotation speed of the X-ray tube 5, and the imaging slice thickness. Defined by the parameters.

  As shown in FIG. 3, the reconfiguration protocol table t2 is a table in which the reconfiguration protocol is associated with the phantom identification code. As described above, the reconstruction protocol is defined by parameters such as the reconstruction slice thickness, the reconstruction interval, and the reconstruction function, and the algorithm type used for the reconstruction.

  As shown in FIG. 4, the analysis content table t3 is a table in which the analysis content is associated with the phantom identification code. The analysis contents include, for example, an ROI (Region Of Interest) position indicating an analysis target range in a reconstructed image generated based on projection data obtained by scanning a phantom, and an analysis to be performed on the ROI position. This item is shown. The analysis items include derivation of image SD (Standard Deviation) showing the variation of pixel values in the ROI and derivation of MTF (Modulation Transfer Function), which is a function representing the spatial resolution in the ROI. Various items are set according to the application.

  The acquisition unit 48 stores a scan protocol, a reconstruction protocol, and an analysis content corresponding to a phantom identification code recognized by a phantom recognition unit, which will be described later in the first and second embodiments, respectively, in a scan protocol table t1 and a reconstruction protocol table. Obtained from t2 and the analysis content table t3.

  The analysis unit 49 analyzes the reconstructed image of the phantom according to the analysis content acquired by the acquisition unit 48. The analysis result is output with a display on the display unit 45, for example. However, the analysis result may be output in a format other than display, such as data transmission to another apparatus connected to the X-ray CT apparatus 1 or printout by a printer.

  The editing unit 50 performs various types of editing such as addition, deletion, and change of data to the tables t1 to t3 included in the phantom database 47. This editing may be performed based on, for example, an instruction input by the user via the input unit 46 or based on information input from the outside via an interface (not shown).

The X-ray CT apparatus 1 includes a phantom recognition unit that recognizes the type of phantom placed on the top plate 30 of the bed apparatus 3, and a scan protocol and reconfiguration according to the type of phantom recognized by the phantom recognition unit Projection data collection and image reconstruction are performed using a protocol, and the reconstructed image is analyzed with contents corresponding to the type of phantom recognized by the phantom recognition unit.
Below, 1st, 2nd embodiment for implement | achieving these operation | movement is disclosed.

(First embodiment)
In the first embodiment, as shown in FIG. 5, a phantom recognition unit 100 is configured using a reader device 101 and an antenna 102 connected to the reader device 101. The phantom recognition unit 100 is provided, for example, on the top plate support unit 31 of the bed apparatus 3.

  The quality evaluation phantom F used in the inspection work according to the present embodiment is provided with an IC tag 110 having an IC chip and a small antenna. A phantom identification code of phantom F is stored in the IC chip. For example, when the IC tag 110 is placed on the top plate 30, the IC tag 110 is affixed to a position that is an end portion in the horizontal movement direction of the top plate 30 so as not to generate an artifact in the reconstructed image related to the phantom F. However, the IC tag 110 may be built in the housing of the phantom F.

  The antenna 102 is, for example, a planar patch antenna having directivity toward the mounting surface of the top plate 30. The reader device 101 modulates the question data directed to the IC tag 110 into a high frequency signal and supplies it to the antenna 102. The antenna 102 that receives the input of the high frequency signal generates a radio wave corresponding to the high frequency signal. When this radio wave is received by the IC tag 110, the IC tag 110 generates a radio wave representing a phantom identification code stored in the IC chip by backscatter modulation using a carrier wave transmitted from the reader device 101. The antenna 102 that has received the radio wave outputs a high-frequency signal corresponding to the radio wave to the reader device 101. The reader device 101 obtains a phantom identification code by demodulating a high-frequency signal input from the antenna 102 and transmits the code to the console control unit 40. As a specific communication sequence between the reader device 101 and the IC tag 110, various methods such as a sequence proposed by an EPC (Electronic Product Code) global can be adopted.

An inspection operation using such a phantom recognition unit 100 will be described.
When starting the inspection work, the worker places the phantom F corresponding to the purpose of quality evaluation by the inspection at a specified position on the top board 30. The prescribed position is a position determined in advance so that the IC tag 110 of the phantom F is located within the communication range of the antenna 102.

After placing the phantom F on the top board 30, the operator operates the input unit 46 to input an instruction to start inspection. Thereafter, the X-ray CT apparatus 1 operates according to the flow shown in the flowchart of FIG. 6 and automatically proceeds with the inspection work.
That is, first, the phantom recognition unit 100 executes an automatic recognition process of the type of the phantom F placed on the top board 30 (step S1). Specifically, as described above, the reader device 101 generates a radio wave related to the question data in the antenna 102 and demodulates a high-frequency signal output when the antenna 102 receives a response radio wave from the IC tag 110 to identify the phantom. Get the code. By obtaining the phantom identification code in this way, the phantom recognition unit 100 recognizes the type of phantom F.

  When the phantom identification code obtained in step S1 is transmitted to the console control unit 40, the console control unit 40 issues a command to the gantry / bed control unit 11 to automatically adjust the position of the phantom F to the scan start position ( Step S2). The scan start position is defined by, for example, the horizontal position and the vertical position of the top board 30 with the specified position as a reference. Upon receiving the above command from the console control unit 40, the gantry / bed control unit 11 controls the bed driving mechanism 32 to move the top board 30 in the horizontal direction and the vertical direction, thereby positioning the phantom F at the scan start position. . For example, the scan start position may be registered in the phantom database 47 in association with the phantom identification code so that the console control unit 40 can obtain the scan start position by referring to the phantom database 47. Note that if the gantry device 2 includes a tilt mechanism that tilts the scan surface with respect to the mounting surface of the top plate 30, an inclination angle by the tilt mechanism may be added to the scan start position.

  After step S2, the acquisition unit 48 acquires the scan protocol associated with the phantom identification code transmitted to the console control unit 40 in step S1 from the scan protocol table t1 (step S3). The acquisition unit 48 transmits each parameter included in the scan protocol acquired from the scan protocol table t1 to the gantry / bed control unit 11 via the console control unit 40, and obtains projection data of the phantom F in the main inspection work. Set as a protocol for

  Further, the acquisition unit 48 acquires the reconfiguration protocol associated with the phantom identification code transmitted to the console control unit 40 in step S1 from the reconfiguration protocol table t2 (step S4). The acquisition unit 48 transmits each parameter included in the reconstruction protocol acquired from the reconstruction protocol table t2 to the reconstruction processing unit 42, and as a protocol for reconstructing a tomographic image of the phantom F and the like in this inspection work. Let it be set.

  Further, the acquisition unit 48 acquires the analysis contents associated with the phantom identification code transmitted to the console control unit 40 in step S1 from the analysis content table t3 (step S5). The acquisition unit 48 transmits the ROI position and the execution item included in the analysis content acquired from the analysis content table t3 to the analysis unit 49, and sets it as the content for analyzing the tomographic image of the phantom F and the like in this inspection work.

  After setting the scan protocol and the reconstruction protocol, the console control unit 40 waits for the input (step S7) while accepting the input of the scan instruction by the operator (step S6). The scan instruction is input by operating the input unit 46, for example.

  When a scan instruction is eventually input (Yes in step S7), the console control unit 40 instructs the gantry / bed control unit 11 to start scanning. At this time, the gantry / bed control unit 11 controls each unit of the gantry device 2 and the bed device 3, and collects projection data related to the phantom F according to the scan protocol set in step S3 (step S8).

  The projection data obtained in this way is transmitted to the console device 4, and various preprocessing is performed by the preprocessing unit 41. Then, according to the reconstruction protocol set by the reconstruction processing unit 42 in step S4, an image is reconstructed using the projection data after the preprocessing (step S9).

  Thereafter, the reconstructed image obtained in step S9 is analyzed in accordance with the analysis content set in step S5 by the analysis unit 49 (step S10).

When the analysis by the analysis unit 49 is completed, the console control unit 40 causes the display unit 45 to display a report constituted by the analysis result together with the reconstructed image generated in step S9 (step S11). The report includes, for example, the analysis result obtained in step S10 along with the character string representing the ROI position and the action item set in step S5. However, the report may be displayed in other formats. Further, as described above, the analysis result may be output by data transmission to another apparatus, printout by a printer, or the like, or may be output separately from the reconstructed image.
A series of operation | movement of the X-ray CT apparatus 1 which concerns on inspection work is completed by step S11.

  The operator refers to the report and the reconstructed image displayed on the display unit 45 in step S11, and whether or not an abnormal analysis result is included in the report, or an abnormal artifact occurs in the reconstructed image. If any abnormality is found, take measures such as contacting the manufacturer's maintenance staff.

  As described above, the X-ray CT apparatus 1 according to the present embodiment automatically recognizes the type of the phantom placed on the top board 30, and scan protocol and reconstruction protocol according to the recognized type of phantom. And the inspection work using the phantom is automatically performed according to the analysis contents. Such a configuration eliminates the need for the operator to set the scan protocol, reconfiguration protocol, and analysis content according to the type of phantom, thus improving the efficiency of inspection work and reducing the burden on the worker. Is done. Moreover, even an operator with a low level of training can quickly and appropriately carry out inspection work without referring to a manual or the like.

In addition, since the editing unit 50 is provided, even if a new phantom is adopted as a phantom to be used for inspection work, or even if the scan protocol, reconstruction protocol, and analysis content for a certain phantom are changed, the manufacturer, etc. The phantom database 47 can be freely edited on the user side without going through.
In addition, various suitable effects can be obtained from the configuration disclosed in the present embodiment.

(Second Embodiment)
A second embodiment will be described.
This embodiment is different from the first embodiment in the configuration of the phantom recognition unit. The operation of the X-ray CT apparatus 1 in the inspection work is the same as that shown in the flowchart of FIG.

A phantom recognition procedure according to this embodiment will be described with reference to FIG.
The phantom database 47 according to the present embodiment includes a phantom shape data group 201 shown in FIG. The phantom shape data group 201 includes phantom sample images corresponding to each phantom identification code. As the sample image, those relating to various images that can be imaged by the X-ray CT apparatus 1, such as a scanano image, an axial image, or a volume image, can be adopted. FIG. 7 illustrates a case where an axial image of a cylindrical phantom (a tomogram perpendicular to the axis) is adopted as a sample image. This sample image is a drawing of the phantom housing shape and the shape of the module provided inside the housing.

  The phantom recognition unit 200 according to the present embodiment extracts the housing shape and the module shape from the phantom image FI included in the test image T obtained by actually scanning the phantom placed on the top board 30, and the extraction result Are compared with each sample image of the phantom shape data group 201, and it is estimated that the phantom related to the sample image having the highest degree of coincidence is the phantom placed on the top board 30. The phantom recognition unit 200 may be realized by software by the console control unit 40, for example, or may be configured using a separate processor or memory.

  The test image T is generated when the operator operates the input unit 46 to input an inspection start instruction and the processing in step S1 is started. That is, the phantom recognition unit 200 instructs the gantry / bed control unit 11 to start scanning using a predetermined test scan protocol in response to the input of the inspection start instruction. At this time, the gantry / bed control unit 11 controls each unit of the gantry device 2 and the bed device 3 and collects projection data related to the phantom placed on the top board 30 according to the test scan protocol.

  When the phantom shape data group 201 relates to a scanogram, the phantom recognition unit 200 uses, as the test image T, an image that has been preprocessed by the preprocessing unit 41 with respect to the projection data collected at this time. .

  When the phantom shape data group 201 is related to an axial image or a volume image, the phantom recognition unit 200 uses an axial image or a volume image according to a test reconstruction protocol predetermined in the reconstruction processing unit 42. Direct reconfiguration. At this time, the reconstruction processing unit 42 uses the projection data collected according to the test scan protocol and preprocessed by the preprocessing unit 41, and reconstructs an axial image and a volume image according to the test reconstruction protocol. To do. The phantom recognition unit 200 uses the reconstructed axial image or volume image as the test image T.

  If there is a sample image in the phantom shape data group 201 that matches the housing shape or module shape included in such a test image T, the phantom identification code of the phantom corresponding to the sample image is used and the subsequent steps. Processing is executed. On the other hand, if a matching sample image does not exist in the phantom shape data group 201, the phantom recognition unit 200 notifies the operator of this by displaying on the display unit 45 or the like.

  Even in the case where the type of the phantom is recognized using an image obtained by actually scanning the phantom placed on the top board 30 as in the present embodiment, the inspection is performed in the same manner as in the first embodiment. There will be no change in the effects of improving work efficiency.

Furthermore, with the configuration of the present embodiment, it is not necessary to provide the reader device 101 and the antenna 102 in the X-ray CT apparatus 1, and there is no need to worry about the occurrence of artifacts due to the IC tag 110.
In addition, various suitable effects can be obtained from the configuration disclosed in the present embodiment.

(Modification)
The configuration disclosed in each of the above embodiments can be variously modified.
For example, in each of the above embodiments, the type of the phantom placed on the top board 30 is automatically recognized, and the X-ray CT apparatus 1 displays the scan protocol, the reconstruction protocol, and the analysis content according to the recognized type. The case of automatically determining was illustrated. However, the scan protocol, the reconstruction protocol, and the analysis contents are not automatically determined, but only a part of them is automatically determined by the X-ray CT apparatus 1, and the operator is responsible for the other parts. You may make it determine by inputting. Even in this case, it is not necessary for the operator to specify at least a part of the scan protocol, reconstruction protocol, and analysis content, so the burden on the worker is reduced and the inspection work is made more efficient. There is no difference in being done.

  In each of the above embodiments, the type of the phantom is recognized by reading an IC tag provided on the phantom or collating the phantom shape using a test image. However, the phantom type may be recognized by other methods such as an operator inputting the phantom type from the input unit 46 or the like.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

  DESCRIPTION OF SYMBOLS 1 ... X-ray CT apparatus, 2 ... Stand apparatus, 3 ... Bed apparatus, 4 ... Console apparatus, 5 ... X-ray tube, 6 ... X-ray detector, 47 ... Phantom database, 48 ... Acquisition part, 49 ... Analysis part , 50 ... editing unit, P ... subject, t1 ... scan protocol table, t2 ... reconstruction protocol table, t3 ... analysis content table, 100, 200 ... phantom recognition unit, 101 ... reader device, 102 ... antenna, 110 ... IC Tag: 200: Phantom recognition unit, 201: Phantom shape data group, T: Test image

Claims (12)

  1. An imaging unit that scans the subject and collects data of the subject;
    A phantom recognition unit that recognizes the type of the phantom based on the shape of the phantom included in a test image generated based on data obtained by scanning the phantom by the imaging unit;
    An acquisition unit that acquires a scan protocol associated with the type recognized by the phantom recognition unit, from information associated with a scan protocol for scanning the phantom in the imaging unit for the type of phantom,
    A control unit that controls the imaging unit according to a scan protocol acquired by the acquisition unit and scans the phantom;
    Based on data obtained by scanning the phantom, a reconstruction processing unit that reconstructs an image related to the phantom;
    An image reconstructed by the reconstruction processing unit, or an output unit that outputs information obtained by analyzing the image;
    A medical image diagnostic apparatus comprising:
  2.   The medical image diagnosis apparatus according to claim 1, further comprising an editing unit that edits the information in which a scan protocol is associated with the type of the phantom.
  3. An imaging unit that scans the subject and collects data of the subject;
    A phantom recognition unit that recognizes the type of phantom;
    An acquisition unit that acquires a reconstruction protocol associated with a type recognized by the phantom recognition unit, from information that associates a reconstruction protocol for reconstructing an image related to the phantom with respect to the type of phantom;
    A control unit that controls the imaging unit and scans the phantom;
    In accordance with the reconstruction protocol acquired by the acquisition unit, a reconstruction processing unit that reconstructs an image related to the phantom using data obtained by scanning the phantom;
    An image reconstructed by the reconstruction processing unit, or an output unit that outputs information obtained by analyzing the image;
    A medical image diagnostic apparatus comprising:
  4.   The medical image diagnostic apparatus according to claim 3, further comprising an editing unit that edits the information in which a reconstruction protocol is associated with a phantom type.
  5. An imaging unit that scans the subject and collects data of the subject;
    A phantom recognition unit for recognizing the type of the phantom based on the shape of the phantom included in the test image generated based on the data obtained by scanning the phantom by the imaging unit ;
    An acquisition unit that acquires analysis content associated with the type recognized by the phantom recognition unit, from information that associates analysis content with the type of phantom,
    A control unit that controls the imaging unit and scans the phantom;
    A reconstruction processing unit for reconstructing an image related to the phantom using data obtained by scanning the phantom;
    An analysis unit for analyzing the image reconstructed by the reconstruction processing unit according to the analysis content acquired by the acquisition unit;
    An output unit that outputs information obtained by analyzing the image by the analysis unit;
    A medical image diagnostic apparatus comprising:
  6.   The medical image diagnostic apparatus according to claim 5, further comprising an editing unit that edits information in which analysis contents are associated with a phantom type.
  7. The phantom recognition unit communicates with a wireless tag provided in the phantom, acquires information stored in the wireless tag, and recognizes a type of the phantom based on the acquired information. the medical image diagnostic apparatus according to 3.
  8. The phantom recognition unit recognizes a type of the phantom based on a shape of the phantom included in a test image generated based on data obtained by scanning the phantom by the photographing unit. Item 4. The medical image diagnostic apparatus according to Item 3 .
  9. The medical image diagnostic apparatus according to claim 1 , wherein the test image is one of a scano image, an axial image, or a volume image related to the phantom.
  10. A method for controlling a medical image diagnostic apparatus that includes an imaging unit that scans a subject and collects data of the subject, and reconstructs an image related to the subject using the collected data,
    A phantom recognition step for recognizing the type of the phantom based on the shape of the phantom included in a test image generated based on data obtained by scanning the phantom by the photographing unit;
    An acquisition step for acquiring a scan protocol associated with the type recognized in the phantom recognition step, from information associated with a scan protocol for scanning the phantom in the imaging unit for the type of phantom,
    A control step of controlling the imaging unit according to the scan protocol acquired by the acquisition step, and scanning the phantom;
    Based on the data obtained by scanning the phantom, a reconstruction step of reconstructing an image related to the phantom;
    An output step of outputting the image reconstructed in the reconstruction step, or information obtained by analyzing the image;
    A control method comprising:
  11. A method for controlling a medical image diagnostic apparatus that includes an imaging unit that scans a subject and collects data of the subject, and reconstructs an image related to the subject using the collected data,
    A phantom recognition step for recognizing the type of phantom;
    An acquisition step of acquiring a reconstruction protocol associated with the type recognized in the phantom recognition step, from information relating a reconstruction protocol for reconstructing an image related to the phantom with respect to the type of phantom;
    A control step of controlling the imaging unit and scanning the phantom;
    In accordance with the reconstruction protocol acquired in the acquisition step, a reconstruction step of reconstructing an image related to the phantom using data obtained by scanning the phantom;
    An output step of outputting the image reconstructed in the reconstruction step, or information obtained by analyzing the image;
    A control method comprising:
  12. A method for controlling a medical image diagnostic apparatus that includes an imaging unit that scans a subject and collects data of the subject, and reconstructs an image related to the subject using the collected data,
    A phantom recognition step for recognizing the type of the phantom based on the shape of the phantom included in the test image generated based on the data obtained by scanning the phantom by the photographing unit ;
    An acquisition step for acquiring the analysis content associated with the type recognized in the phantom recognition step, from information relating the analysis content to the type of phantom,
    A control step of controlling the imaging unit and scanning the phantom;
    In accordance with the reconstruction protocol acquired in the acquisition step, a reconstruction step of reconstructing an image related to the phantom using data obtained by scanning the phantom;
    An analysis step of analyzing the image reconstructed in the reconstruction step according to the analysis content acquired in the acquisition step;
    An output step of outputting information obtained by analyzing the image in the analysis step;
    A control method comprising:
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