JP2012045285A - Ultrasonograph and control program of the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an ultrasonograph with which the change of an image caused by a contrast medium in an ultrasonic image and medical images other than the ultrasonic image of a subject to which the contrast medium has been administered can be suitably observed on one screen.SOLUTION: The ultrasonograph has a display image control part which displays a contrast image CG as the ultrasonic image UG of the subject to which the contrast medium has been administered, and displays an X-ray CT image XG as a medical image other than the ultrasonic image acquired beforehand about the subject to which the contrast medium has been administered. The display image control part displays the X-ray CT image XG of a time phase that corresponds to the contrast image CG about the same cross section.

Description

  The present invention relates to an ultrasonic diagnostic apparatus and a control program for displaying an ultrasonic image of a subject to which a contrast agent is administered and a medical image other than an ultrasound image acquired in advance for the subject to which a contrast agent is administered. About.

  Ultrasound that displays a medical image such as an X-ray CT image acquired by an X-ray CT (Computed Tomography) apparatus or an MRI image acquired by an MRI (Magnetic Resonance Imaging) apparatus together with an ultrasonic image of the same cross section A diagnostic apparatus is disclosed, for example, in Patent Document 1 and the like.

  In some cases, a contrast medium is administered to a subject and an ultrasonic image is observed (see, for example, Patent Document 2). Furthermore, in X-ray CT images and MRI images, an image of a subject to which a contrast agent has been administered may be observed (see, for example, Patent Document 3).

JP 2010-88587 A JP 2005-296254 A JP 2009-261519 A

  By the way, when the liver is observed by administering a contrast medium, for example, the contrast medium flows into the liver from the hepatic artery, then flows around the whole body and flows into the liver from the hepatic portal vein, and then spreads over the entire liver parenchyma. In an ultrasound image, each time phase according to the inflow state of a contrast agent is called an arterial phase, a portal vein phase, and a substantial phase. In an X-ray CT image and an MRI image, an arterial phase, a portal vein phase, and an equilibrium phase. And so on. The change in the staining according to the inflow state of the contrast agent is common to the ultrasound image, the X-ray CT image, and the MRI image, and has a time phase corresponding to each other. However, the time from administration of the contrast agent to the corresponding time phases may differ between the ultrasound image, the X-ray CT image, and the MRI image.

  Under such circumstances, an ultrasonic diagnostic apparatus capable of suitably observing on one screen an image change caused by a contrast medium in an ultrasonic image of a subject to which a contrast medium has been administered and a medical image other than the ultrasonic image, and its A control program is desired.

  The invention of the first aspect made to solve the above-described problem is an ultrasonic image of a subject to which a contrast agent is administered and an ultrasound image acquired in advance for a subject to which a contrast agent is administered. A display image control unit for displaying a medical image, comprising: a display image control unit for displaying the medical image in a time phase corresponding to the same cross section as the ultrasonic image. .

  According to a second aspect of the invention, in the first aspect of the invention, an ultrasonic probe that transmits an ultrasonic wave to a subject and receives an echo, and a position sensor for detecting the position of the ultrasonic probe; A position calculation unit that calculates a position of echo data in a coordinate system of a three-dimensional space having a predetermined point as an origin based on position detection information of the position sensor, and the display image control unit includes the position The ultrasonic diagnostic apparatus is characterized in that the medical image having the same cross section as the ultrasonic image is displayed based on position information of the echo data calculated by the calculation unit.

  A third aspect of the invention is the ultrasonic diagnostic apparatus according to the first or second aspect of the invention, wherein the medical image is an image of a predetermined cross section created based on 3D data.

  The invention of a fourth aspect is the invention of any one of the first to third aspects, wherein the display image control unit displays the ultrasonic image as a moving image and corresponds to a time phase of the ultrasonic image. The ultrasonic diagnostic apparatus is characterized in that the medical image of the time phase still image is switched and displayed in accordance with the change of the time phase of the ultrasonic image.

  A fifth aspect of the invention is the invention of any one of the first to third aspects, wherein the display image control unit displays the ultrasonic image as a moving image and corresponds to a time phase of the ultrasonic image. The ultrasonic diagnostic apparatus is characterized in that the medical image of a time phase moving image is displayed in accordance with a change in time phase of the ultrasonic image.

  The invention according to a sixth aspect is the invention according to any one of the first to fifth aspects, wherein the display image control unit displays a time-based medical image corresponding to the time phase of the ultrasonic image. An ultrasonic diagnostic apparatus that displays the medical image based on information.

  A seventh aspect of the invention is the ultrasonic diagnostic apparatus according to the sixth aspect of the invention, further comprising an operation unit for inputting the time information.

  The invention according to an eighth aspect is the invention according to any one of the first to seventh aspects, wherein the display image control unit displays the ultrasonic image and the medical image in parallel on a display unit. This is an ultrasonic diagnostic apparatus.

  The invention according to a ninth aspect is the invention according to any one of the first to seventh aspects, wherein the display control unit is configured to combine the ultrasonic image and the medical image alone or with the ultrasonic image. It is an ultrasonic diagnostic apparatus characterized by displaying on a display part in parallel.

  A tenth aspect of the invention is the invention of any one of the first to ninth aspects, further comprising a storage unit that stores data of the medical image, and the display image control unit is a medical unit stored in the storage unit An ultrasonic diagnostic apparatus that displays a medical image created based on image data.

  According to an eleventh aspect of the invention, a computer displays an ultrasound image of a subject to which a contrast agent has been administered and a medical image other than an ultrasound image acquired in advance for the subject to which a contrast agent has been administered. An ultrasonic diagnostic apparatus control program for executing a display image control function for displaying the medical image in a time phase corresponding to the same cross section as the ultrasonic image.

  According to the above aspect of the invention, by displaying a temporal medical image corresponding to the same cross section as the ultrasonic image, it is possible to preferably observe on one screen the change in the image due to the contrast agent in the ultrasonic image and the medical image. can do.

It is a block diagram which shows an example of schematic structure of embodiment of the ultrasonic diagnosing device which concerns on this invention. It is a block diagram which shows the structure of the display control part in the ultrasonic diagnosing device shown in FIG. It is a flowchart which shows the process in the ultrasonic diagnosing device of embodiment. It is a figure which shows an example of the display part by which the magnification of the delay time of the X-ray CT image with respect to the ultrasonic image was displayed. It is a figure which shows an example of the display part on which the B mode image and the X-ray CT image were displayed side by side. It is a figure which shows an example of the display part by which the contrast image and the X-ray CT image were displayed side by side. It is a figure for demonstrating the display of the X-ray CT image of the time phase corresponding to the time phase of a contrast image, and is a conceptual diagram which shows the data of a contrast image and the data of an X-ray CT image. It is a flowchart which shows the process in the ultrasonic diagnosing device of a 1st modification. It is a figure which shows an example of the display part by which the contrast image and the X-ray CT image were displayed side by side in the 2nd modification. It is a figure which shows the other example of the display part by which the synthesized image which synthesize | combined the contrast image and the X-ray CT image in the 2nd modification was displayed.

  Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. 1 includes an ultrasonic probe 2, a transmission / reception unit 3, an echo data processing unit 4, a display control unit 5, a display unit 6, an operation unit 7, a control unit 8, an HDD (Hard Disk Drive: hard disk). Drive) 9, a magnetic generator 10 and a magnetic sensor 11.

  The ultrasonic probe 2 includes a plurality of ultrasonic transducers (not shown) arranged in an array, and transmits ultrasonic waves to the subject through the ultrasonic transducers, and echo signals thereof. Receive. The ultrasonic probe 2 is an example of an embodiment of an ultrasonic probe in the present invention.

  The ultrasonic probe 2 is provided with the magnetic sensor 11 composed of, for example, a Hall element. The magnetic sensor 11 detects magnetism generated from the magnetism generating unit 10 composed of, for example, a magnetism generating coil. A detection signal in the magnetic sensor 11 is input to the display control unit 5. The detection signal in the magnetic sensor 11 may be input to the display control unit 5 via a cable (not shown), or may be input to the display control unit 5 wirelessly. The magnetism generator 10 and the magnetic sensor 11 are for detecting the position and inclination of the ultrasonic probe 2 as will be described later, and are an example of an embodiment of the position sensor in the present invention.

  The transmission / reception unit 3 drives the ultrasonic probe 2 under a predetermined transmission condition, and scans a scan surface in an acoustic ray sequence with an ultrasonic beam. The transmission / reception unit 3 drives the ultrasonic probe 2 according to a control signal from the control unit 8.

  In addition, the transmission / reception unit 3 performs signal processing such as phasing addition processing on the echo signal obtained by the ultrasonic probe 2 and outputs the echo data after the signal processing to the echo data processing unit 4.

  The echo data processing unit 4 performs predetermined processing such as logarithmic compression processing and envelope detection processing on the echo data output from the transmission / reception unit 3. In this example, since the B-mode imaging and the contrast-mode imaging are performed as described later, the echo data processing unit 4 performs echo data processing for creating a B-mode image during the B-mode imaging. At the time of imaging in the contrast mode, echo data processing for creating a contrast image based on data including an echo signal from the contrast agent administered to the subject is performed.

  The display control unit 5 includes a position calculation unit 51, a memory 52, and a display image control unit 53, as shown in FIG. Based on the magnetic detection signal from the magnetic sensor 11, the position calculation unit 51 is configured to obtain information on the position and inclination of the ultrasonic probe 2 in a coordinate system in a three-dimensional space with the magnetic generation unit 10 as an origin (hereinafter, referred to as the following). (Referred to as “probe position information”). Further, the position calculation unit 51 calculates position information of echo data in the coordinate system of the three-dimensional space based on the probe position information. The position calculation unit 51 calculates position information for each pixel. The position calculation unit 51 is an example of an embodiment of the position calculation unit in the present invention.

  Incidentally, the coordinate system of the three-dimensional space with the magnetic generator 10 as the origin is a coordinate system of an ultrasonic image.

  The memory 52 is composed of, for example, a semiconductor memory (Memory) such as a RAM (Random Access Memory) and a ROM (Read Only Memory). The memory 52 stores, for example, echo data output from the echo data processing unit 4 and converted into the ultrasonic image data by the display image control unit 53 as will be described later. Data before being converted into the ultrasound image data is referred to as raw data. Raw data may be stored in the HDD 9.

  The memory 52 or the HDD 9 stores medical image data acquired by a medical image apparatus other than the ultrasonic diagnostic apparatus 1 as described later. The memory 52 or the HDD 9 is an example of an embodiment of a storage unit in the present invention.

  The display image control unit 53 scan-converts the echo data processed by the echo data processing unit 4 into ultrasonic image data displayed on the display unit 6 by a scan converter (Scan Converter). An ultrasonic image based on the image data is displayed on the display unit 6. Further, the display image control unit 53 causes the display unit 6 to display a medical image based on the medical image data.

  The display image control unit 53 performs coordinate conversion between the coordinate system of the ultrasound image and the coordinate system of the medical image other than the ultrasound image, and both the ultrasound image and the medical image for the same cross section are described above. It is displayed on the display unit 6. In this example, as will be described later, the ultrasonic image and the medical image are displayed side by side on the display unit 6.

  Here, as the ultrasound image, a B-mode image and a contrast image which is an image of a subject to which a contrast agent is administered are displayed as described later. In addition, as the medical image, an image of a subject to which a contrast medium is administered is displayed. As will be described later, the display image control unit 53 displays a contrast image and a medical image in a time phase corresponding to each other in the change in the staining caused by the contrast agent. The display image control unit 53 is an example of an embodiment of a display image control unit in the present invention. Further, the display function of the ultrasonic image and the medical image described above by the display image control unit 53 is an example of the embodiment of the display image control function in the present invention.

  The display unit 6 includes an LCD (Liquid Crystal Display), a CRT (Cathode Ray Tube), or the like. The display unit 6 is an example of an embodiment of the display unit in the present invention. The operation unit 7 includes a keyboard and a pointing device (not shown) for an operator to input instructions and information. The operation unit 7 is an example of an embodiment of the operation unit in the present invention.

  The control unit 8 includes a CPU (CentRal Processing Unit). The control unit 8 reads out the control program stored in the HDD 9 and executes the functions in each unit of the ultrasonic diagnostic apparatus 1 including the display image control function.

  Now, the operation of the ultrasonic diagnostic apparatus 1 of this example will be described based on the flowchart of FIG. In this example, the display image control unit 53 displays a medical image acquired in advance for the same cross section as the ultrasonic image while displaying a real-time ultrasonic image as a moving image, and the ultrasonic image is used as the medical image. The medical image of the still image corresponding to the time phase of the sound wave image is switched and displayed in accordance with the change of the time phase of the ultrasonic image displayed as a moving image.

  More specifically, first, in step S1, medical image data other than ultrasonic images acquired in advance in a medical image apparatus other than the ultrasonic diagnostic apparatus 1 is stored in the HDD 9. The medical image data is 3D data of a medical image that is captured so as to include each time phase corresponding to the inflow state of the contrast agent over a predetermined time after the contrast agent is administered to the subject. The 3D data of the medical image may be data acquired by starting imaging before administration of the contrast agent. Here, it is assumed that 3D data of an X-ray CT image acquired in advance by an X-ray CT apparatus (not shown) is stored as the medical image. However, the medical image is not limited to this, and may be, for example, an MRI image acquired in advance for a predetermined time by an MRI apparatus (not shown).

  In step S1, time information for displaying an X-ray CT image of a time phase corresponding to the time phase of the ultrasonic image is input through the operation unit 7. For example, in an X-ray CT image, when an image delayed by n times compared to an ultrasound image is a time phase corresponding to the time phase of the ultrasound image, the X-ray CT for the ultrasound image is used as the time information. The magnification “n” of the delay time of the image is input through the operation unit 7. In this case, a magnification display X may be displayed on the display unit 6 as shown in FIG.

  However, the time information is not limited to the magnification described above. For example, in an X-ray CT image, when an image delayed by time m with respect to an ultrasound image is a time phase corresponding to the time phase of the ultrasound image, the X-ray CT image for the ultrasound image is used as the time information. The delay time “m” is input.

  However, the present invention is not limited to the case where the time information is input through the operation unit 7, and the time information may be set as a default in advance.

  Next, in step S2, transmission / reception of ultrasonic waves is started in the ultrasonic probe 2, and the display image control unit 53 displays ultrasonic images UG and X-ray CT images on the display unit 6 as shown in FIG. XG is displayed in parallel. In step S2, the display image control unit 53 displays a B-mode image BG as the ultrasonic image UG.

  Next, in step S3, alignment processing between the coordinate system of the ultrasonic image UG and the coordinate system of the X-ray CT image XG is performed. Specifically, the operator moves the cross section of one or both images while comparing the B mode image BG displayed on the display unit 6 and the X-ray CT image XG, and the B mode of the same cross section. The image BG and the X-ray CT image XG are displayed. The cross section of the B-mode image BG is moved by changing the position of the ultrasonic probe 2. The cross section of the X-ray CT image XG is moved by operating the operation unit 7 and inputting an instruction to change the cross section. By the way, as the X-ray CT image XG, an image that can be easily aligned is displayed as a still image.

  Whether the cross sections are the same or not is determined, for example, by referring to a characteristic part by the operator. Incidentally, it is assumed that the ultrasonic scanning plane by the ultrasonic probe 2 is parallel to the slice plane of the X-ray CT image XG.

  When the B-mode image BG and the X-ray CT image XG for the same cross section are displayed, the operator inputs an instruction indicating that the same cross section has been displayed. Thereby, coordinate conversion between the coordinate system of the ultrasonic image UG and the coordinate system of the X-ray CT image XG becomes possible, and the alignment process is completed.

  Next, in step S4, a contrast agent is administered to the subject, and imaging of an ultrasound image in a contrast mode, that is, a contrast image is started. In this step S4, when the operator performs an input indicating that the imaging of the contrast mode has been started in the operation unit 7, measurement of the elapsed time since the contrast agent was administered is started. This elapsed time may be displayed in the vicinity of a contrast image CG shown in FIG.

  When the imaging of the contrast image is started in step S4, in step S5, the display image control unit 53, as shown in FIG. 6, the contrast image CG based on data including an echo signal from the contrast agent as an ultrasonic image UG. Is displayed on the display unit 6 and an X-ray CT image XG is displayed in parallel with the contrast image CG.

  As the X-ray CT image in step 5, the display image control unit 53 displays a corresponding time-phase X-ray CT image XG for the same cross section as the contrast image CG. The display image control unit 53 converts the position information of the echo data, which is the coordinate system of the ultrasonic image UG, calculated by the position calculation unit 53 into the position information of the coordinate system of the X-ray CT image XG, and converts the contrast image. An X-ray CT image for the same cross section as CG is displayed.

  Further, the display image control unit 53 displays an X-ray CT image XG that is delayed by n times with respect to the contrast image CG as a time-phase X-ray CT image XG corresponding to the time phase of the contrast image CG. Let This will be specifically described with reference to FIG. In FIG. 7, CGD indicates the data of the contrast image CG, and XGD indicates the data of the X-ray CT image XG. In these data CGD and XGD, fd indicates data for one frame, that is, frame data.

In the contrast image CG, the time when the elapsed time from the administration of the contrast agent is T1 is an arbitrary time in the arterial phase. In the X-ray CT image XG, the time point when the elapsed time from the administration of the contrast agent is T2 is an arbitrary time point in the arterial phase, which is a time point corresponding to T1 in the contrast image CG. . That is, T2 = T1 × n. Further, fd _T1 is T1 frame data in the data CGD of the contrast image CG, and fd _T2 is T2 frame data in the data XGD of the X-ray CT image XG.

Also, in the contrast image CG, the time when the elapsed time from the administration of the contrast agent is T3 is an arbitrary time in the portal phase, and in the X-ray CT image XG, the elapsed time after the contrast agent is administered. The time point T4 is an arbitrary time point in the portal vein phase, and is a time point corresponding to T3 in the contrast image CG. That is, T4 = T3 × n. Fd _T3 is T3 frame data in the data CGD, and fd _T4 is T4 frame data in the data XGD.

The display image control unit 53 displays a contrast image CG when imaging in the contrast mode is started. The display image control unit 53 displays the contrast image CG based on the frame data fd _T1 in the data CGD of the contrast image CG and displays the contrast image CG when the elapsed time from the administration of the contrast agent reaches T1. In the data XGD of the CT image XG, an X-ray CT image XG based on the frame data fd _T2 is displayed.

The display image control unit 53 displays the real-time contrast image CG as a moving image from T1 to T3, while the X-ray CT image XG is an X-ray CT image based on the frame data fd _T2. Leave XG displayed.

At T3, the display image control unit 53 displays the contrast image CG based on the frame data fd _T3 , and the X-ray CT image XG based on the frame data fd _T2 based on the frame data fd _T4 . Switch to X-ray CT image XG.

Here, although not particularly illustrated, an elapsed time since the contrast agent was administered may be displayed in the vicinity of the X-ray CT image XG when the X-ray CT image is acquired. In this case, for example, when the X-ray CT image XG based on the frame data fd _T2 is displayed, T2 is displayed as the elapsed time, and the X-ray CT image XG based on the frame data fd _T4 is displayed. Sometimes T4 is displayed as the elapsed time.

  Incidentally, in FIG. 6, below the contrast image CG and the X-ray CT image XG, an X-ray CT image XG in each time phase is displayed as a thumbnail image SXG of a small screen. This thumbnail image SXG is an image displayed as an X-ray CT image XG of a time phase corresponding to the time phase of the contrast image CG. When the thumbnail image SXG is designated using the pointing device of the operation unit 7 or the like, the designated image may be displayed as the X-ray CT image XG.

  According to the ultrasonic diagnostic apparatus 1 of the present example described above, the temporal contrast image CG and the X-ray CT image XG corresponding to each other on the same cross section are displayed, so the contrast image CG and the X-ray CT image The change of the image due to the contrast agent can be suitably observed on one screen.

  Next, a modification of the above embodiment will be described. First, the first modification will be described. The display image control unit 53 displays a contrast image CG created based on raw data stored in the memory 52, the HDD 9 or the like, and the contrast image CG is displayed. You may make it display the X-ray CT image XG of the time phase corresponding to a time phase. Specifically, description will be made based on the flowchart of FIG.

  In FIG. 8, steps S1 to S4 are the same processing as described above, and a description thereof is omitted. In step S6 following step S4, echo data of the contrast image CG for each time phase of the contrast mode is acquired and stored in the memory 52 or the HDD 9 as raw data. At this time, the position information of the echo data calculated by the position calculation unit 52 is also stored together with the echo data. In step S7 to be described later, the display image control unit 53 displays the contrast image CG and the X-ray CT image XG of the same cross section based on the stored positional information of the echo data.

  In step S6, the display image control unit 53 displays an X-ray CT image of an arbitrary time phase on the same cross section as the contrast image CG as the X-ray CT image XG while displaying a real-time contrast image CG. Display. Therefore, in this step S6, the X-ray CT image XG of the time phase corresponding to the time phase of the contrast image CG is not displayed.

  Incidentally, in this step S6, the display image control unit 53 generates an X-ray CT image XG having the same cross section as the real-time contrast image CG based on the position information of the echo data obtained by the position calculation unit 52 in real time. Display.

  Next, in step S7, the display image control unit 53 displays the contrast image CG based on the raw data stored in the memory 52 or the HDD 9 as a moving image, and in the same manner as in step S5 described above, A corresponding X-ray CT image XG of the time phase corresponding to the same cross section as the contrast image CG is displayed.

  Next, a second modification will be described. In the second modified example, as shown in FIG. 9, the display image control unit 53 displays a composite image CXG obtained by combining the contrast image CG and the X-ray CT image XG in parallel with the contrast image CG. May be. The synthesized image CXG is an image obtained by synthesizing the contrast image CG and the X-ray CT image XG having the same cross section and corresponding time phases. Then, the display image control unit 53 displays a composite image CXG of a time phase corresponding to the same cross section as the contrast image CG displayed in parallel with the composite image CXG.

  Further, as shown in FIG. 10, the display image control unit 53 may display only the composite image CXG.

  Next, a third modification will be described. The display image control unit 53 displays, as the X-ray CT image XG, a moving image in a time phase corresponding to the time phase of the contrast image CG instead of a still image in accordance with the change in the time phase of the contrast image CG. You may make it make it. In this case, as the X-ray CT image XG, the images of all frames in the data of the X-ray CT image XG are not displayed, but the X-ray CT of the frame of the time phase corresponding to the time phase of the contrast image CG. An image is displayed.

  As mentioned above, although this invention was demonstrated by the said embodiment, of course, this invention can be variously implemented in the range which does not change the main point. For example, when the acquisition position of 3D data of a medical image other than an ultrasound image is shifted with time, a positional shift amount is obtained based on DICOM (Digital Imaging and Communications in Medicine) information or the displayed medical image, This amount of displacement is stored in the ultrasonic diagnostic apparatus 1. Then, when displaying an ultrasonic image and a medical image for the same cross section, the ultrasonic image and the medical image of the same cross section are displayed after performing position correction based on the stored positional deviation amount.

  In addition, when the delay time magnification n and delay time m for displaying a medical image of a time phase corresponding to the time phase of the ultrasonic image change in the middle, a plurality of magnifications n and delay times m may be set. .

DESCRIPTION OF SYMBOLS 1 Ultrasonic diagnostic apparatus 2 Ultrasonic probe 6 Display part 7 Operation part 9 HDD (memory | storage part)
10 Magnetic generator (position sensor)
11 Magnetic sensor (position sensor)
51 Position Calculation Unit 52 Memory (Storage Unit)
53 Display Image Control Unit UG Ultrasound Image XG X-ray CT Image (Medical Image)
CXG composite image

Claims (11)

  A display image control unit that displays an ultrasound image of a subject to which a contrast agent has been administered and a medical image other than an ultrasound image acquired in advance for the subject to which a contrast agent has been administered, the ultrasound image An ultrasonic diagnostic apparatus, comprising: a display image control unit that displays the medical image of a corresponding time phase for the same cross section. An ultrasonic probe that transmits ultrasonic waves to the subject and receives echoes;
A position sensor for detecting the position of the ultrasonic probe;
A position calculation unit that calculates a position of echo data in a coordinate system of a three-dimensional space having a predetermined point as an origin based on position detection information of the position sensor;
2. The super image according to claim 1, wherein the display image control unit displays the medical image having the same cross section as the ultrasonic image based on position information of the echo data calculated by the position calculation unit. Ultrasonic diagnostic equipment.   The ultrasonic diagnostic apparatus according to claim 1, wherein the medical image is an image of a predetermined cross section created based on 3D data.   The display image control unit displays the ultrasonic image as a moving image, and matches the medical image of a still image in a time phase corresponding to the time phase of the ultrasonic image with a change in the time phase of the ultrasonic image. The ultrasonic diagnostic apparatus according to claim 1, wherein the ultrasonic diagnostic apparatus is switched and displayed.   The display image control unit displays the ultrasonic image as a moving image, and adjusts the medical image of the moving image in the time phase corresponding to the time phase of the ultrasonic image in accordance with the change in the time phase of the ultrasonic image. The ultrasonic diagnostic apparatus according to claim 1, wherein the ultrasonic diagnostic apparatus is displayed.   The said display image control part displays the said medical image based on the time information for displaying the medical image of the time phase corresponding to the time phase of the said ultrasonic image. The ultrasonic diagnostic apparatus according to any one of the above.   The ultrasonic diagnostic apparatus according to claim 6, further comprising an operation unit that inputs the time information.   The ultrasonic diagnostic apparatus according to claim 1, wherein the display image control unit displays the ultrasonic image and the medical image in parallel on a display unit.   The ultrasonic display according to claim 1, wherein the display control unit causes the display unit to display a combined image obtained by combining the ultrasonic image and the medical image alone or in parallel with the ultrasonic image. Diagnostic device. A storage unit for storing the medical image data;
The ultrasonic diagnosis according to claim 1, wherein the display image control unit displays a medical image created based on medical image data stored in the storage unit. apparatus. On the computer,
A display image control function for displaying an ultrasound image of a subject to which a contrast agent is administered and a medical image other than an ultrasound image acquired in advance for the subject to which a contrast agent is administered, the ultrasound image A control program for an ultrasonic diagnostic apparatus, which executes a display image control function for displaying the medical image in a corresponding time phase with respect to the same cross section.

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