JP6883432B2 - Ultrasonic image display device and its control program - Google Patents

Description

The present invention relates to an ultrasonic image display device and a control program thereof for creating ultrasonic image data based on an echo signal obtained by transmitting and receiving ultrasonic waves to a subject.

In an ultrasonic diagnostic apparatus, which is an example of an ultrasonic image display apparatus, imaging and interpretation of an ultrasonic image may be performed independently in completely different scenes. In such a case, it is expected that the examination can be performed efficiently even if the imager does not have the image interpretation skill, and it becomes possible to cope with the increase in the number of examinees.

However, in such a case, it is assumed that the imager cannot confirm the ultrasonic image correctly. For example, as described in Patent Document 1, when there is a substance that does not allow ultrasonic waves such as body gas and bone in the acquisition region of the ultrasonic image, or when the ultrasonic probe is not in good contact with the body surface. For example, the imager may not be able to determine that an ultrasonic image suitable for interpretation has not been taken.

Japanese Unexamined Patent Publication No. 2014-161478

Therefore, when imaging and interpretation are performed independently as described above, when the interpreter sees the ultrasonic image at a later date, it may be found that the image is inappropriate for diagnosis for the first time. is assumed. In this way, if the image is later noticed to be inappropriate, the subject cannot be diagnosed, and it is necessary to visit the subject again, which imposes a burden on both the subject and the examiner.

In addition, when scanning and confirming the entire three-dimensional region, for example, when searching for cancer metastasis in the liver, a person who is not the inspector who actually scanned confirms the ultrasonic image later. Even so, it may not be possible to judge whether or not the whole thing has been confirmed without overlooking, and there may be some anxiety.

Therefore, for example, it is desired that even a person with poor interpretation skills can easily confirm whether or not an ultrasonic image that can withstand the diagnosis can be obtained.

The invention from one viewpoint made to solve the above-mentioned problems is an ultrasonic probe that transmits and receives ultrasonic waves to a subject in a three-dimensional space, and an echo signal of ultrasonic waves received by the ultrasonic probe. Partial detection to detect the part where the echo signal from the subject is not obtained in the data creation unit that creates the ultrasonic image data based on the above and the ultrasonic image data created by this data creation unit. The echo is based on the unit, the position detection unit that detects the position of the ultrasonic probe in the coordinate system formed in the three-dimensional space, the position of the ultrasonic probe, and the portion where the echo signal is not obtained. It is an ultrasonic image display device including a display device for displaying an image showing a position in the three-dimensional space of at least one of a portion where a signal is obtained and a portion where an echo signal is not obtained.

According to the invention of the above viewpoint, the three-dimensional image is displayed by displaying an image showing the position of at least one of the portion where the echo signal is obtained and the portion where the echo signal is not obtained in the three-dimensional space. In space, it is possible to know the part where the echo signal from the subject is not obtained. This makes it possible to confirm whether or not an ultrasonic image that can withstand the diagnosis is obtained, for example, even for a person with poor interpretation skills.

It is a block diagram which shows the schematic structure of the ultrasonic diagnostic apparatus which is an example of embodiment of the ultrasonic image display apparatus which concerns on this invention. It is a block diagram which shows the structure of the display processing part in the ultrasonic diagnostic apparatus shown in FIG. It is a flowchart which shows the operation of embodiment. It is a figure which shows an example of the image displayed in step S2 of FIG. It is a figure which shows another example of the image displayed in step S2 of FIG. It is a block diagram which shows the structure of the display processing part in the ultrasonic diagnostic apparatus of the modification of embodiment. In the modified example, it is a figure which shows the image displayed in step S2 of FIG. It is a figure which shows another example of the image displayed in step S2 of FIG.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following embodiment, as an example of the ultrasonic image display device, an ultrasonic diagnostic device that displays a medical ultrasonic image will be described.

The ultrasonic diagnostic apparatus 1 shown in FIG. 1 includes an ultrasonic probe 2, a transmission / reception beam former 3, an echo data processing unit 4, a display processing unit 5, a display device 6, an operation device 7, a control device 8, and a storage device 9. The ultrasonic diagnostic apparatus 1 has a configuration as a computer.

The ultrasonic probe 2 is configured to have a plurality of ultrasonic vibrators (not shown) arranged in an array, and the ultrasonic vibrator transmits ultrasonic waves to a subject and transmits the echo signal. Receive. The ultrasonic probe 2 is an example of the embodiment of the ultrasonic probe in the present invention.

The ultrasonic probe 2 is provided with a magnetic sensor 10 composed of, for example, a Hall element. The magnetic sensor 10 detects magnetism generated from, for example, a magnetic generator 11 installed in a three-dimensional space. The magnetic generating unit 11 is composed of, for example, a magnetic generating coil. The detection signal in the magnetic sensor 10 is input to the display processing unit 5. The detection signal in the magnetic sensor 10 may be input to the display processing unit 5 via a cable (not shown), or may be wirelessly input to the display processing unit 5. The magnetic sensor 10 is an example of an embodiment of the magnetic sensor in the present invention. Further, the magnetic generating unit 11 is an example of the embodiment of the magnetic generating unit in the present invention.

The transmission / reception beam former 3 supplies an electric signal for transmitting ultrasonic waves from the ultrasonic probe 2 under predetermined scanning conditions to the ultrasonic probe 2 based on the control signal from the control device 8. Further, the transmission / reception beam former 3 performs signal processing such as A / D conversion and phase adjustment addition processing on the echo signal received by the ultrasonic probe 2, and outputs the echo data after the signal processing to the echo data processing unit 4. To do.

The echo data processing unit 4 performs processing for creating an ultrasonic image on the echo data output from the transmission / reception beam former 3. For example, the echo data processing unit 4 creates B-mode data by performing B-mode processing such as logarithmic compression processing and envelope detection processing.

As shown in FIG. 2, the display processing unit 5 includes a position calculation unit 51, an image data creation unit 52, an image display control unit 53, a partial detection unit 54, and a position image display control unit 55. The position calculation unit 51 calculates the position of the ultrasonic probe 2 in the coordinate system in the three-dimensional space with the magnetic generator 11 as the origin, based on the magnetic detection signal from the magnetic sensor 10. The position calculation unit 51 may calculate the position of the echo data in the coordinate system of the three-dimensional space based on the position of the ultrasonic probe 2.

The position calculation unit 51, the magnetic sensor 10, and the magnetic generation unit 11 are examples of the embodiment of the position detection unit in the present invention. Further, the function of the position calculation unit 51 is an example of the embodiment of the position calculation function in the present invention.

The image data creation unit 52 creates ultrasonic image data by scanning and converting the data input from the echo data processing unit 4 by a scan converter (Scan Converter). For example, the image data creation unit 52 scans and converts the B-mode data to create the B-mode image data. The image data creation unit 52 is an example of an embodiment of the data creation unit in the present invention. Further, the function of the image data creation unit 52 is an example of the embodiment of the data creation function in the present invention. Further, the ultrasonic image data is an example of the embodiment of the ultrasonic image data in the present invention.

The image display control unit 53 displays an ultrasonic image on the display device 6 based on the ultrasonic image data. The ultrasonic image is, for example, a B-mode image based on the B-mode image data.

The partial detection unit 54 detects a portion of the ultrasonic image data created by the image data creation unit 52 in which the echo signal from the subject has not been obtained. Details will be described later. The partial detection unit 54 is an example of the embodiment of the partial detection unit in the present invention. Further, the function of the partial detection unit 54 is an example of the embodiment of the partial detection function in the present invention.

The position image display control unit 55 is based on the position of the ultrasonic probe 2 and the portion where the echo signal is not obtained, and at least one of the portion where the echo signal is obtained and the portion where the echo signal is not obtained. The image IP indicating the position of the above in the three-dimensional space is displayed on the display device 6 (see FIG. 4). The function of the position image display control unit 55 is an example of the embodiment of the display control function in the present invention.

The display device 6 is an LCD (Liquid Crystal Display), an organic EL (Electro-Luminescence) display, or the like. An ultrasonic image such as a B-mode image or an image IP is displayed on the display device 6. The display device 6 is an example of an embodiment of the display device in the present invention.

The operation device 7 is an input device that accepts input by the user. For example, the operation device 7 includes a button and a keyboard (keyboard) for receiving instructions and information input from the user, and further includes a pointing device such as a trackball.

The control device 8 is a processor such as a CPU (Central Processing Unit). The control device 8 reads out the program stored in the storage device 9 and controls each part of the ultrasonic diagnostic apparatus 1. For example, the control device 8 reads a program stored in the storage device 9, and causes the functions of the transmission / reception beam former 3, the echo data processing unit 4, and the display processing unit 5 to be executed by the read program.

The control device 8 may programmatically execute all the functions of the transmission / reception beam former 3, all the functions of the echo data processing unit 4, and all the functions of the display processing unit 5. Only some functions may be performed programmatically. When the control device 8 executes only a part of the functions, the remaining functions may be executed by hardware such as a circuit.

The functions of the transmission / reception beam former 3, the echo data processing unit 4, and the display processing unit 5 may be realized by hardware such as a circuit.

The storage device 9 includes a non-transient storage medium and a transient storage medium. For example, the storage device 9 is an HDD (Hard Disk Drive), a semiconductor memory (Memory) such as a RAM (Random Access Memory) or a ROM (Read Only Memory), or the like.

The ultrasonic diagnostic apparatus 1 may have all of the HDD, RAM, and ROM as the storage device 9. Further, the storage device 9 may be a portable storage medium such as a CD (Compact Disk) or a DVD (Digital Versaille Disk).

The program executed by the control device 8 is stored in a non-transient storage medium such as an HDD or a ROM. Further, the program may be stored in a portable and non-transient storage medium such as a CD or a DVD.

The storage device 9 stores ultrasonic image data such as B-mode image data. Further, the storage device 9 may store raw data (raw data) obtained by the echo data processing unit 4, such as B mode data. Further, the storage device 9 may store the position of the ultrasonic probe 2 or the position of the echo data calculated by the position calculation unit 51. The storage device 9 is an example of an embodiment of the storage device in the present invention.

Now, the operation of the ultrasonic diagnostic apparatus 1 of this example will be described with reference to the flowchart of FIG. First, in step S1, the ultrasonic probe 2 transmits and receives ultrasonic waves to the subject in the coordinate system of the three-dimensional space with the magnetic generating unit 11 as the origin. The transmission and reception of ultrasonic waves is performed while the operator moves the ultrasonic probe 2 in the three-dimensional space. As a result, ultrasonic echo signals are acquired for a plurality of planes in the three-dimensional space. The image data creation unit 52 creates ultrasonic image data in each of the plurality of planes based on the echo signal. The ultrasonic image data here is B mode image data. The B-mode image data is stored in the storage device 9.

Further, in step S1, the position of the ultrasonic probe 2 calculated by the position calculation unit 51 is stored in the storage device 9. More specifically, the storage device 9 has acquired the position of the ultrasonic probe 2 corresponding to each of the plurality of planes, that is, the echo signal of the ultrasonic wave in each of the plurality of planes as the position of the ultrasonic probe 2. The position of the ultrasonic probe 2 is stored. The position of the ultrasonic probe 2 is stored in association with the B-mode image data or the B-mode data.

Next, in step S2, the position image display control unit 55 causes the display device 6 to display the image IP shown in FIG. 4 or the image IP shown in FIG. The image IP has a first image IP1 and a second image IP2. The first image IP1 is composed of a plurality of quadrangular images showing a plurality of XY planes (the directions of the X-axis and the Y-axis will be described later), and corresponds to a transmission / reception surface of ultrasonic waves by the ultrasonic probe 2. The first image IP1 is an image showing the positions of the portion where the echo signal is obtained and the portion where the echo signal is not obtained in the three-dimensional space on the transmission / reception surface of the ultrasonic wave. In FIG. 5, the first image IP1-1 and the first image IP1-2 are displayed as the first image IP1.

Further, the second image IP2 is composed of a quadrangular image showing an XZ plane, and corresponds to an ultrasonic wave transmission / reception region in the Z (Z-axis direction will be described later) direction. The second image IP2 is an image showing the positions of the portion where the echo signal is obtained and the portion where the echo signal is not obtained in the three-dimensional space on the XZ plane.

In FIGS. 4 and 5, the first Cartesian coordinate axis A1 and the second Cartesian coordinate axis A2 indicate the X-axis, the Y-axis, and the Z-axis that are orthogonal to each other in the three-dimensional space. The first orthogonal coordinate axis A1 indicates the coordinate axis in the first image IP1, and the second orthogonal coordinate axis A2 indicates the coordinate axis in the second image IP2. In the first Cartesian coordinate axis A1 and the second Cartesian coordinate axis A2, the X-axis is the azimuth direction of the ultrasonic probe 2, the Z-axis is the elevation direction of the ultrasonic probe 2, and the Y-axis. Is a direction orthogonal to the X-axis and the Z-axis, and is a depth direction in the subject. In step S1, ultrasonic waves are transmitted and received while the ultrasonic probe 2 moves in the Z-axis direction.

The process for displaying the image IP will be described in detail. First, the partial detection unit 54 detects a portion of the B-mode image data in which the echo signal from the subject has not been obtained. Here, the portion where the echo signal from the subject is not obtained is a portion where noise is included in the signal and the morphological information of the living tissue is not accurately represented to some extent in the B mode image, and can withstand the diagnosis. This is the part where the image that can be obtained is not obtained.

The partial detection unit 54 may perform the detection on the B-mode image data stored in the storage device 9 as a non-transient storage medium, or may be stored in the storage device 9 as a transient storage medium. The detection may be performed on the B-mode image data.

The partial detection unit 54 detects the portion in each of the plurality of planes based on the B-mode image data in each of the plurality of planes. The partial detection unit 54 detects the portion based on the information regarding the brightness of the B mode image in the B mode image data. More specifically, for example, the partial detection unit 54 detects the portion of the B-mode image data corresponding to each of the pixels by performing a determination based on a threshold value.

Judgment based on the threshold value will be described. In the B-mode image, the brightness of the portion where the echo signal from the subject is not obtained may be relatively low. Therefore, the determination based on the threshold value is a determination for detecting, for example, whether or not the brightness in the B mode image is equal to or less than the required brightness. The partial detection unit 54 detects a portion having a brightness equal to or lower than the required brightness as the portion.

Further, the partial detection unit 54 performs the threshold value determination instead of the above-mentioned threshold value determination, and distributes the values of the B mode data in the required region including the pixels with respect to the B mode data corresponding to each of the pixels. It may be calculated and determined based on this variance.

The determination based on the variance will be described. In the B-mode image, the portion where the echo signal from the subject is not obtained may not accurately reflect the structural information of the living tissue, and the difference in brightness between the pixels may be small. Therefore, the determination based on the dispersion is a determination for detecting whether or not there is a variation in brightness in the B mode image. The partial detection unit 54 detects a portion having a required variance value or less as the portion.

The partial detection unit 54 may make a determination based on a degree of dispersion other than dispersion (for example, standard deviation, coefficient of variation, etc.).

The detection by the partial detection unit 54 may be performed after the echo signals are acquired in all of the plurality of planes and the B mode image data is created. Further, the detection by the partial detection unit 54 may be performed every time an echo signal is acquired in each of the plurality of planes and B mode image data is created.

When the detection by the partial detection unit 54 is performed, the position image display control unit 55 uses the ultrasonic wave corresponding to the portion where the echo signal detected by the partial detection unit 54 is not obtained and the plane on which the portion is detected. The image IP is displayed on the display device 6 based on the position of the probe 2. More specifically, when the position of the ultrasonic probe 2 is stored in the storage device 2, the position calculation unit 51 calculates the position of the echo data in the coordinate system of the three-dimensional space based on the position information. To do. Then, the position image display control unit 55 causes the display device 6 to display the image IP based on the position information of the echo data and the portion detected by the partial detection unit 54.

When the position information of the echo data is stored in the storage device 2, the position image display control unit 55 generates an image IP based on the position information of the echo data and the part detected by the partial detection unit 54. Display on the display device 6.

The position image display control unit 55 displays a portion where the echo signal detected by the partial detection unit 54 has not been obtained as the first portion R1 in the first image IP1, and displays the other portion as the second portion R1. Displayed as part R2. The first portion R1 and the second portion R2 may be displayed in different colors, for example.

When both the determination by the threshold value and the determination by the variance are performed by the partial detection unit 54, both the portion detected by the determination by the threshold value and the portion detected by the determination by the variance are designated as the first portion R1. It may be displayed.

The first image IP1-1 is an image in which the first portion R1 does not exist at a position where the distance in the depth direction from the body surface is smaller than the required distance D in the living tissue of the subject. That is, the first image IP1-1 is an image in which the first portion R1 is present only in a relatively deep portion of the subject. On the other hand, the first image IP1-2 is an image in which the first portion R1 exists at a position where the distance from the body surface in the depth direction is smaller than the distance D.

In the second image IP2, the position image display control unit 55 has a portion where the echo signal from the subject is not obtained at a position where the distance in the depth direction from the body surface is smaller than the distance D. The existing part is displayed as the first part R1, and the other parts are displayed as the second part R2.

The distance D may be set by the operator inputting it on the operating device 7.

According to the above-described example, by displaying the image IP, the operator can know the part where the echo signal is obtained and the part where the echo signal is not obtained in the three-dimensional space. As a result, for example, even if the operator has poor interpretation skills, it is possible to easily confirm whether or not an image that can withstand the diagnosis is obtained, and it is easy to determine whether or not it is necessary to perform scanning again. can do. Further, the operator can know in which direction the ultrasonic probe 2 should be moved before performing the scan again by confirming which part the echo signal is not obtained. In particular, the operator can easily know which side the ultrasonic probe 2 should be moved in the direction along the Z axis by referring to, for example, the second image IP2.

Further, when the subject to which the ultrasonic waves are transmitted / received in step S1 is in the examination room, the processing of step S2 is performed to check on the spot whether or not it is necessary to scan the subject again. Can be judged by. As a result, it is possible to prevent a situation in which a re-inspection is performed at a later date, so that the inspection efficiency can be improved.

Next, a modified example of the embodiment will be described. In this modification, the display processing unit 5 has an obstacle detection unit 56 as shown in FIG. 6, in addition to the components described in the above embodiment. The obstacle detection unit 56 detects an obstacle that shields ultrasonic waves based on the portion detected by the partial detection unit 54.

Also in this example, basically the same processing as the flowchart shown in FIG. 3 is performed. However, in step S2, the position image display control unit 55 displays the image IP shown in FIG. 7. This image IP has a third image IP3, a fourth image IP4, and a fifth image IP5. The third image IP3 is an image consisting of a figure of a human body imitating the subject. The fourth image IP4 is an image consisting of a solid line showing the position of the transmission / reception surface by the ultrasonic probe 2 in the subject. The fifth image IP5 is an image consisting of a broken line indicating the position of the obstacle in the subject detected by the obstacle detection unit 56. The fifth image IP5 is an example of an embodiment of an image showing an obstacle in the present invention.

The fourth image IP4 contains the first portion R1. Further, a part of the fourth image IP4 includes the second part R2.

The position image display control unit 55 is based on the position of the ultrasonic probe 2 corresponding to the portion where the echo signal detected by the partial detection unit 54 is not obtained and the plane where the portion is detected. Display image IP4. The fourth image IP4 is displayed at a position corresponding to the transmission / reception surface of the subject in the three-dimensional space in the third image IP3.

The alignment between the coordinate system of the third image IP3 and the coordinate system of the three-dimensional space will be described. For example, the operator completes the alignment by inputting an input instructing the alignment process to the operation device 7 with the ultrasonic probe 2 placed at a predetermined reference position in the subject. The correspondence between the reference position and the corresponding position coordinates in the third image IP3 and the correspondence between the distance in the three-dimensional space and the corresponding distance in the third image IP3 are specified and stored in the storage device 9. There is. Therefore, after the alignment process is performed, the position image display control unit 55 sets the fourth image IP3 in the third image IP3 based on each of the above-mentioned correspondences and the position information of the ultrasonic probe 2. Specify the position where the image IP4 should be displayed.

The portion where the echo signal detected by the partial detection unit 54 is not obtained is displayed as the first portion R1 in the fourth image IP4, and the portion where the echo signal is obtained is displayed in the fourth image IP4 as the second portion R1. Is displayed as part R2 of. The display form is different between the first portion R1 and the second portion R2. For example, the first portion R1 and the second portion R2 are displayed in different colors. The fourth image IP4 is an image showing the positions of the portion where the echo signal is obtained and the portion where the echo signal is not obtained in the three-dimensional space on the transmission / reception surface of the ultrasonic wave.

More specifically, in the fourth image IP4, the first portion R1 is the case where there is a portion where the echo signal is not obtained at a position where the distance from the body surface is smaller than the distance D. It is displayed in the part. Therefore, if there is a portion where the echo signal is not obtained only at a position where the distance from the body surface is the same as or larger than the distance D, the first portion R1 is displayed in the fourth image IP4. However, only the second part R2 is displayed.

The position image display control unit 55 causes the fifth image IP5 to be displayed at the boundary portion between the first portion R1 and the second portion R2 based on the position of the portion where the echo signal is not obtained.

According to this modification, in addition to having the above-mentioned effect, the operator can know the position of the obstacle by displaying the fifth image IP5.

Although the present invention has been described above by the above-described embodiment, it goes without saying that the present invention can be modified in various ways without changing the gist thereof. For example, the detection method by the partial detection unit 54 is not limited to the above-mentioned method, and any method may be used as long as it can detect a portion where an echo signal from the subject has not been obtained. An example of such a method will be described. For example, B-mode image data may be created based on the signal received by the ultrasonic transducer without transmitting ultrasonic waves from the ultrasonic probe 2 before the detection of the partial detection unit 54 is performed in step S2. .. The B-mode image data created in this way is used as the reference B-mode image data. In step S2, the partial detection unit 54 compares the reference B-mode image data with the B-mode image data obtained in step S1 at each pixel, and the difference in brightness is smaller than the required threshold value in the comparison result. If it is determined, it is determined that the echo signal from the subject has not been obtained. The reference B-mode image data is noise data, and when the above-mentioned difference in brightness is smaller than the required threshold value, the B-mode image data obtained in step S1 contains only signals equivalent to noise. It is considered that there is no such thing.

Further, as the image IP, an image showing the position in the three-dimensional space of one of the portion where the echo signal is obtained or the portion where the echo signal is not obtained may be displayed.

Further, as shown in FIG. 8, the first image IP1 having the first portions R1-1 and R1-2 may be displayed. The first part R1-1 and R1-2 are both parts where the echo signal from the subject is not obtained. However, the first portion R1-1 is a portion in which the distance in the depth direction from the body surface is smaller than the required distance D, and the second portion R1-2 is, on the contrary, the depth from the body surface. The part where the distance in the direction is the same as or larger than the required distance D. Each of the first portions R1-1 and R1-2 has a different display form from each other. In FIG. 8, the first portion 1-1 is indicated by dots, but each of the first portions R1-1 and R1-2 may be displayed in different colors. Further, the first portion R1-1 and R1-2 are displayed in different colors from the second portion R2, and the display form is different.

Further, the partial detection unit 54 may detect a portion where the echo signal from the subject is not obtained based on raw data such as B mode data instead of the B mode image data. In this case, the echo data processing unit 4 is an example of the embodiment of the data creation unit in the present invention, and the function of the echo data processing unit 4 is an example of the embodiment of the data creation function in the present invention. Further, the B mode data is an example of the embodiment of the ultrasonic image data in the present invention.

1 Ultrasonic diagnostic device 2 Ultrasonic probe 6 Display device 8 Control device 9 Storage device 10 Magnetic sensor 11 Magnetic generator 51 Position calculation unit 52 Image data creation unit 53 Image display control unit 54 Partial detection unit 55 Position image display control unit 56 Obstacle detector

Claims (9)

An ultrasonic probe that transmits and receives ultrasonic waves to a subject in three-dimensional space,
A data creation unit that creates ultrasonic image data based on the ultrasonic echo signal received by the ultrasonic probe, and a data creation unit.
In the ultrasonic image data created by the data creation unit, a partial detection unit that detects a portion where the echo signal from the subject is not obtained, and a partial detection unit.
A position detection unit that detects the position of the ultrasonic probe in the coordinate system formed in the three-dimensional space, and
Based on the position of the ultrasonic probe and the portion where the echo signal is not obtained, the position in the three-dimensional space of at least one of the portion where the echo signal is obtained and the portion where the echo signal is not obtained is determined. In the image shown , a region including a plurality of planes to which the ultrasonic waves are transmitted and received as positions in at least one of the portion where the echo signal is obtained and the portion where the echo signal is not obtained in the three-dimensional space. A display device that displays an image showing the position, and
An ultrasonic image display device comprising. An obstacle detection unit for detecting an obstacle that shields ultrasonic waves based on the portion detected by the partial detection unit is provided.
The display device displays an image showing the obstacle.
The ultrasonic image display device according to claim 1. The ultrasonic image display device according to claim 1 or 2, wherein the partial detection unit detects the portion based on information corresponding to the brightness of the ultrasonic image in the ultrasonic image data. The data creation unit receives ultrasonic image data in each of the plurality of planes based on an echo signal obtained by transmitting and receiving ultrasonic waves to the plurality of planes in the three-dimensional space by the ultrasonic probe. Create and
The partial detection unit detects the portion in each of the plurality of planes based on the data of the ultrasonic image in each of the plurality of planes.
The ultrasonic image display device according to any one of claims 1 to 3. The image is a first image showing the plurality of planes, the first image showing the surface including the azimuth direction of the ultrasonic probe, and the plane including the azimuth direction and the elevation direction of the ultrasonic probe. 1 to 4, wherein the first image and the second image include a second image showing an ultrasonic transmission / reception region in the above, and the position of the region including the plurality of planes is shown in the first image and the second image. The ultrasonic image display device according to item 1. The image includes a third image consisting of a diagram of a human body imitating a subject and a fourth image showing the positions of the plurality of planes in the subject, and the third image and the fourth image include the third image. The ultrasonic image display device according to any one of claims 1 to 4, wherein the position of the region including the plurality of planes is shown. A storage device for storing the position of the ultrasonic probe detected by the position detection unit is provided.
The display device displays the image using the position of the ultrasonic probe stored in the storage device as the position of the ultrasonic probe.
The ultrasonic image display device according to any one of claims 1 to 6 , wherein the ultrasonic image display device is characterized. A storage device for storing the position of the ultrasonic image data specified based on the position of the ultrasonic probe in the three-dimensional space is provided.
The display device displays the image based on the position of the data of the ultrasonic image stored in the storage device and the portion where the echo signal is not obtained.
The ultrasonic image display device according to any one of claims 1 to 6. An ultrasonic probe that transmits and receives ultrasonic waves to a subject in three-dimensional space,
A position detection device that detects the position of the ultrasonic probe in the coordinate system formed in the three-dimensional space, and
Display device and
With the processor
It is a control program of an ultrasonic image display device equipped with
The control program
A data creation function that creates ultrasonic image data based on the ultrasonic echo signal received by the ultrasonic probe, and
In the ultrasonic image data created by the data creation function, a partial detection function for detecting a portion where the echo signal from the subject is not obtained, and a partial detection function.
Based on the position of the ultrasonic probe and the portion where the echo signal is not obtained on the display device, at least one of the portion where the echo signal is obtained and the portion where the echo signal is not obtained is said to be the tertiary. A plurality of images showing a position in the original space, in which the ultrasonic waves are transmitted and received as positions in at least one of the portion where the echo signal is obtained and the portion where the echo signal is not obtained in the three-dimensional space. A display control function that displays an image showing the position of the area including the plane,
A control program for an ultrasonic image display device that causes the processor to execute the above.

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