JP2014239841A - Ultrasonic diagnostic equipment, medical image processor, and control program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide ultrasonic diagnostic equipment capable of providing an enlarged display of an ultrasonic image by a simple operation, a medical image processor, and a control program.SOLUTION: Ultrasonic diagnostic equipment relating to an embodiment includes a generation part, a setting part, and a display control part. The generation part generates an ultrasonic image on the basis of a reflection wave received by an ultrasonic probe. The setting part sets a range including a region of interest, in the ultrasonic image. The display control part makes a display part provide an enlarged display of the ultrasonic image included in the range.

Description

  Embodiments described herein relate generally to an ultrasonic diagnostic apparatus, a medical image processing apparatus, and a control program.

  2. Description of the Related Art Conventionally, in order to easily observe the state of a subject in the body, an ultrasound diagnostic apparatus that transmits ultrasound from the body surface to the body and displays an ultrasound image based on the reflected wave is widely used. For example, since an ultrasonic diagnostic apparatus can display an ultrasonic image on a monitor in substantially real time, it is used when puncture is performed, such as a biological tissue examination or radiofrequency ablation (RFA).

  For example, in a biological tissue examination, a doctor inserts a puncture needle into a lesion site while confirming the position of the needle tip of the puncture needle and / or the position of the lesion site with an ultrasound image, and performs tissue sampling from the lesion site. In RFA, a doctor inserts a puncture needle into a lesion site while confirming the position of the needle tip and / or the position of the lesion site, and irradiates a radio wave from the puncture needle to cauterize the lesion site.

  By the way, an ultrasonic diagnostic apparatus generally includes an enlarged display function for enlarging and displaying an arbitrary range of an ultrasonic image on a monitor or arbitrarily moving an enlarged display range. For example, when an instruction to shift to a mode for performing enlarged display is received from the operator, the ultrasound diagnostic apparatus sets a preset of a target range to be subjected to enlarged display at the center of the ultrasound image. Then, when an instruction for specifying an enlargement ratio is received from an operator, the conventional ultrasonic diagnostic apparatus changes the size of the target range according to the enlargement ratio in order to display the monitor with the specified enlargement ratio ( Zoom processing). Further, when an instruction for designating the position of the target range is received from the operator, the conventional ultrasonic diagnostic apparatus moves the target range to the instructed position (pan processing).

  Therefore, when an ultrasonic image is displayed in an enlarged manner, if a part of interest of the doctor, such as the position of the needle tip or the position of the lesion, is displayed on the monitor, the doctor can browse the part of interest in detail. can do. On the other hand, if a part of interest to the doctor is not displayed on the monitor, the doctor loses sight of the part of interest.

JP-A-9-38079

  The problem to be solved by the present invention is to provide an ultrasonic diagnostic apparatus, a medical image processing apparatus, and a control program that can enlarge and display an ultrasonic image with a simple operation.

  The ultrasonic diagnostic apparatus according to the embodiment includes a generation unit, a setting unit, and a display control unit. The generation unit generates an ultrasonic image based on the reflected wave received by the ultrasonic probe. The setting unit sets a range including a region of interest in the ultrasonic image. The display control unit enlarges and displays the ultrasonic image included in the range on the display unit.

FIG. 1 is a diagram for explaining a configuration of an ultrasonic diagnostic apparatus 1 according to the first embodiment. FIG. 2 is a diagram for explaining the initial setting process according to the first embodiment. FIG. 3A is a diagram for explaining zoom processing according to the first embodiment. FIG. 3B is a diagram for describing zoom processing according to the first embodiment. FIG. 4 is a diagram for explaining the bread processing according to the first embodiment. FIG. 5 is a flowchart showing a processing procedure of the ultrasonic diagnostic apparatus 1 according to the first embodiment. FIG. 6 is a flowchart illustrating a processing procedure of a target range setting process according to the first embodiment. FIG. 7A is a diagram for explaining pan processing according to the second embodiment. FIG. 7B is a diagram for explaining pan processing according to the second embodiment. FIG. 8 is a flowchart illustrating a processing procedure of a target range setting process according to the second embodiment. FIG. 9 is a diagram for explaining the configuration of the ultrasonic diagnostic apparatus 1 according to the third embodiment. FIG. 10A is a diagram for explaining processing of the setting unit 171 according to the third embodiment. FIG. 10B is a diagram for explaining processing of the setting unit 171 according to the third embodiment. FIG. 10C is a diagram for explaining processing of the setting unit 171 according to the third embodiment. FIG. 10D is a diagram for explaining processing of the setting unit 171 according to the third embodiment. FIG. 11A is a diagram for explaining processing of the setting unit 171 according to the fourth embodiment. FIG. 11B is a diagram for explaining processing of the setting unit 171 according to the fourth embodiment. FIG. 12 is a diagram for explaining the configuration of the ultrasonic diagnostic apparatus 1 according to the fifth embodiment. FIG. 13A is a diagram for explaining processing of the setting unit 171 according to the fifth embodiment. FIG. 13B is a diagram for explaining processing of the setting unit 171 according to the fifth embodiment. FIG. 14 is a diagram for explaining the configuration of the medical information system according to the sixth embodiment.

  Hereinafter, an ultrasonic diagnostic apparatus, a medical image processing apparatus, and a control program according to embodiments will be described with reference to the drawings.

(First embodiment)
FIG. 1 is a diagram for explaining a configuration of an ultrasonic diagnostic apparatus 1 according to the first embodiment. As shown in FIG. 1, the ultrasonic diagnostic apparatus 1 according to the first embodiment includes an ultrasonic probe 11, a puncture needle 13, an input apparatus 14, a monitor 15, and an apparatus main body 100, and a network. It is connected to the.

  The ultrasonic probe 11 has a plurality of piezoelectric vibrators, and the plurality of piezoelectric vibrators generate ultrasonic waves based on a drive signal supplied from a transmission / reception unit 110 included in the apparatus main body 100 to be described later. A reflected wave from the specimen P is received and converted into an electric signal. The ultrasonic probe 11 includes a matching layer provided in the piezoelectric vibrator, a backing material that prevents propagation of ultrasonic waves from the piezoelectric vibrator to the rear, and the like.

  When ultrasonic waves are transmitted from the ultrasonic probe 11 to the subject P, the transmitted ultrasonic waves are reflected one after another at the discontinuous surface of the acoustic impedance in the body tissue of the subject P, and the ultrasonic probe is used as a reflected wave signal. 11 is received by a plurality of piezoelectric vibrators. The amplitude of the received reflected wave signal depends on the difference in acoustic impedance at the discontinuous surface where the ultrasonic wave is reflected. The reflected wave signal when the transmitted ultrasonic pulse is reflected by the moving blood flow or the surface of the heart wall depends on the velocity component of the moving object in the ultrasonic transmission direction due to the Doppler effect. , Subject to frequency shift.

  In this embodiment, even when the subject P is scanned two-dimensionally by the ultrasonic probe 11 which is a one-dimensional ultrasonic probe in which a plurality of piezoelectric vibrators are arranged in a row, the one-dimensional ultrasonic wave is used. An ultrasonic probe 11 (mechanical 4D probe) that mechanically swings a plurality of piezoelectric vibrators of the probe or an ultrasonic probe 11 that is a two-dimensional ultrasonic probe in which a plurality of piezoelectric vibrators are two-dimensionally arranged in a lattice shape. The present invention can be applied even when the subject P is scanned three-dimensionally by (2D array probe).

  The puncture adapter 12 is an attachment attached to the ultrasonic probe 11 in order to puncture the ultrasonic probe 11 at a predetermined position. For example, the puncture adapter 12 has a groove (puncture guide rail) for inserting the puncture needle 13 into the ultrasonic probe 11 at a predetermined position. The puncture guide rail is defined for each puncture adapter 12, and one or a plurality of puncture guide rails are provided for one puncture adapter 12.

  Further, the puncture adapter 12 and the puncture guide rail are given ID (Identification) for identifying each. The ID of the puncture adapter 12 and the ID of the puncture guide rail are stored in the internal storage unit 160 together with position information indicating the position of the puncture guide rail with respect to the ultrasonic probe 11.

  The puncture needle 13 is a medical instrument attached to the puncture adapter 12 in order to perform puncture such as biological tissue examination and radiofrequency ablation treatment. For example, the puncture needle 13 is inserted into the subject P at a predetermined position with respect to the ultrasonic probe 11 by passing through the puncture guide rail of the puncture adapter 12. As an example, the doctor inserts the puncture needle 13 attached to the puncture adapter 12 to the target site of the subject P while referring to the ultrasonic image displayed on the monitor 15.

  The input device 14 includes a keyboard, a mouse, a foot switch, a trackball, a touch command screen, various buttons, and the like. The input device 14 receives various instructions from the operator of the ultrasonic diagnostic apparatus 1 and receives various instructions received from the apparatus main body 100. Forward.

  For example, the input device 14 receives an instruction from the operator to start a puncture mode that is a mode for performing puncture. This instruction includes, for example, the ID of the puncture guide rail through which the puncture needle 13 passes and the ID of the puncture adapter 12. The input device 14 outputs the received instruction to the image generation unit 140 and a setting unit 171 described later.

  The monitor 15 displays a GUI (Graphical User Interface) for an operator of the ultrasound diagnostic apparatus 1 to input various instructions using the input device 14, or superimposes ultrasound image data generated in the apparatus body 100. Or displayed as a sonic image.

  The apparatus main body 100 is an apparatus that generates ultrasonic image data based on the reflected wave received by the ultrasonic probe 11. The apparatus main body 100 shown in FIG. 1 can generate two-dimensional ultrasound image data based on a two-dimensional reflected wave signal, and can generate three-dimensional ultrasound image data based on a three-dimensional reflected wave signal. It is.

  As shown in FIG. 1, the apparatus main body 100 includes a transmission / reception unit 110, a B-mode processing unit 120, a Doppler processing unit 130, an image generation unit 140, an image memory 150, an internal storage unit 160, and a control unit 170. And an interface unit 180.

  The transmission / reception unit 110 controls ultrasonic transmission / reception performed by the ultrasonic probe 11 based on an instruction from the control unit 170 described later. The transmission / reception unit 110 includes a pulse generator, a transmission delay unit, a pulser, and the like, and supplies a drive signal to the ultrasonic probe 11. The pulse generator repeatedly generates rate pulses for forming transmission ultrasonic waves at a predetermined rate frequency. The transmission delay unit generates a delay time for each piezoelectric vibrator necessary for focusing the ultrasonic wave generated from the ultrasonic probe 11 into a beam and determining transmission directivity. Give for each rate pulse. The pulser applies a drive signal (drive pulse) to the ultrasonic probe 11 at a timing based on the rate pulse. The transmission delay unit arbitrarily adjusts the transmission direction of the ultrasonic wave transmitted from the piezoelectric vibrator surface by changing the delay time given to each rate pulse.

  The transmission / reception unit 110 includes a preamplifier, an A / D (Analog / Digital) converter, a reception delay unit, an adder, and the like. The transmission / reception unit 110 performs various processing on the reflected wave signal received by the ultrasonic probe 11 and reflects it. Generate wave data. The preamplifier amplifies the reflected wave signal for each channel. The A / D converter A / D converts the amplified reflected wave signal. The reception delay unit gives a delay time necessary for determining the reception directivity. The adder performs an addition process of the reflected wave signal processed by the reception delay unit to generate reflected wave data. By the addition processing of the adder, the reflection component from the direction corresponding to the reception directivity of the reflected wave signal is emphasized, and a comprehensive beam for ultrasonic transmission / reception is formed by the reception directivity and the transmission directivity.

  The transmitter / receiver 110 transmits a two-dimensional ultrasonic beam from the ultrasonic probe 11 when the subject P is two-dimensionally scanned. Then, the transmission / reception unit 110 generates two-dimensional reflected wave data from the two-dimensional reflected wave signal received by the ultrasonic probe 11. Further, the transmitter / receiver 110 transmits a three-dimensional ultrasonic beam from the ultrasonic probe 11 when the subject P is three-dimensionally scanned. Then, the transmission / reception unit 110 generates three-dimensional reflected wave data from the three-dimensional reflected wave signal received by the ultrasonic probe 11.

  As described above, the transmission / reception unit 110 controls transmission directivity and reception directivity in ultrasonic transmission / reception. The transmission / reception unit 110 has a function capable of instantaneously changing delay information, a transmission frequency, a transmission drive voltage, the number of aperture elements, and the like under the control of the control unit 170 described later. In particular, the change of the transmission drive voltage is realized by a linear amplifier type oscillation circuit capable of instantaneously switching values or a mechanism for electrically switching a plurality of power supply units. Further, the transmission / reception unit 110 can transmit and receive different waveforms for each frame or rate.

  The B-mode processing unit 120 and the Doppler processing unit 130 are signal processing units that perform various types of signal processing on the reflected wave data generated from the reflected wave signal by the transmission / reception unit 110. The B mode processing unit 120 receives the reflected wave data from the transmission / reception unit 110, performs logarithmic amplification, envelope detection processing, and the like, and generates data (B mode data) in which the signal intensity is expressed by brightness. . In addition, the Doppler processing unit 130 performs frequency analysis on velocity information from the reflected wave data received from the transmission / reception unit 110, and extracts data (Doppler data) obtained by extracting moving body information such as velocity, dispersion, and power due to the Doppler effect at multiple points. Generate. Here, the moving body is, for example, a blood flow, a tissue such as a heart wall, or a contrast agent. Note that the B-mode processing unit 120 and the Doppler processing unit 130 illustrated in FIG. 1 can process both two-dimensional reflected wave data and three-dimensional reflected wave data.

  The image generation unit 140 generates ultrasonic image data from the data generated by the B mode processing unit 120 and the Doppler processing unit 130. That is, the image generation unit 140 generates two-dimensional B-mode image data in which the intensity of the reflected wave is expressed by luminance from the two-dimensional B-mode data generated by the B-mode processing unit 120. Further, the image generation unit 140 generates two-dimensional Doppler image data representing moving body information from the two-dimensional Doppler data generated by the Doppler processing unit 130. The two-dimensional Doppler image data is velocity image data, distributed image data, power image data, or image data obtained by combining these.

  Here, the image generation unit 140 generally converts (scan converts) a scanning line signal sequence of ultrasonic scanning into a scanning line signal sequence of a video format represented by a television or the like, and displays ultrasonic waves for display. Generate image data. Specifically, the image generation unit 140 generates ultrasonic image data for display by performing coordinate conversion in accordance with the ultrasonic scanning mode by the ultrasonic probe 11. In addition to the scan conversion, the image generation unit 140 may perform various image processing, such as image processing (smoothing processing) for regenerating an average luminance image using a plurality of image frames after scan conversion, Image processing (edge enhancement processing) using a differential filter is performed in the image. Further, the image generation unit 140 synthesizes incidental information (character information of various parameters, scales, body marks, etc.) with the ultrasonic image data.

  That is, B-mode data and Doppler data are ultrasonic image data before the scan conversion process, and data generated by the image generation unit 140 is ultrasonic image data for display after the scan conversion process. The B-mode data and the Doppler data are also called raw data (Raw Data). The image generation unit 140 obtains “two-dimensional B mode” that is two-dimensional ultrasonic image data for display from “two-dimensional B-mode data and two-dimensional Doppler data” that is two-dimensional ultrasonic image data before scan conversion processing. Image data and 2D Doppler image data "are generated.

  Also, the image generation unit 140 generates three-dimensional B-mode image data by performing coordinate conversion on the three-dimensional B-mode data generated by the B-mode processing unit 120. Further, the image generation unit 140 generates three-dimensional Doppler image data by performing coordinate conversion on the three-dimensional Doppler data generated by the Doppler processing unit 130. The image generation unit 140 generates “3D B-mode image data or 3D Doppler image data” as “3D ultrasound image data (volume data)”.

  In addition, the image generation unit 140 performs rendering processing on the volume data in order to generate various two-dimensional image data for displaying the volume data on the monitor 15. The rendering process performed by the image generation unit 140 includes, for example, a process of generating MPR image data from volume data by performing a multi-planar reconstruction (MPR). The rendering processing performed by the image generation unit 140 includes, for example, volume rendering (VR) processing that generates two-dimensional image data reflecting three-dimensional information.

  Further, the image generation unit 140 generates a puncture guideline that is image data representing a route through which the puncture needle 13 passes. For example, when the puncture needle 13 is attached to the ultrasonic probe 11 using the puncture adapter 12, the image generation unit 140 generates a puncture guideline corresponding to the direction of the puncture guide rail to which the puncture needle 13 is attached. To do. Then, the image generation unit 140 superimposes the generated puncture guideline on the ultrasonic image corresponding to the scanning range of the ultrasonic probe 11.

  Specifically, the image generation unit 140 receives an instruction from the input device 14 to start the puncture mode. Subsequently, the image generation unit 140 acquires the puncture guide rail position information corresponding to the ID of the puncture adapter 12 and the ID of the puncture guide rail included in the instruction from the internal storage unit 160. Then, the image generation unit 140 generates broken line image data along the puncture guide rail as a puncture guideline using the acquired position information of the puncture guide rail. Then, the image generation unit 140 generates image data in which the generated puncture guideline is superimposed on the ultrasound image.

  The image memory 150 stores image data such as a contrast image or a tissue image generated by the image generation unit 140. Further, the image memory 150 stores a processing result by the image generation unit 140. Further, the image memory 150 stores an output signal immediately after passing through the transmission / reception unit 110, an image luminance signal, various raw data, image data acquired via a network, and the like as necessary. The data format of the image data stored in the image memory 150 is generated by the B-mode processing unit 120 and the Doppler processing unit 130 even if it is a data format after video format conversion displayed on the monitor 15 by the control unit 170 described later. Alternatively, the data format before coordinate conversion may be Raw data.

  The internal storage unit 160 stores a control program for performing ultrasonic transmission / reception, image processing, and display processing, diagnostic information (for example, patient ID, doctor's findings, etc.), various data such as a diagnostic protocol and various body marks. To do. The internal storage unit 160 is also used for storing images stored in the image memory 150 as necessary. Note that data stored in the internal storage unit 160 can be transferred to an external peripheral device via an interface unit 180 described later.

  In addition, the internal storage unit 160 stores the position of the puncture needle 13 inserted into the subject P from the puncture adapter 12 attached to the ultrasonic probe 11. For example, the internal storage unit 160 stores position information indicating the position of the puncture guide rail with respect to the ultrasonic probe 11 for each ID of the puncture adapter 12 and ID of the puncture guide rail. In addition, when the puncture adapter 12 has only one puncture guide rail, the internal storage unit 160 may store position information of the puncture guide rail for each ID of the puncture adapter 12.

  The control unit 170 controls the entire processing in the ultrasonic diagnostic apparatus 1. Specifically, the control unit 170 transmits and receives the transmission / reception unit 110, the B mode based on various instructions input from the operator via the input device 14, various control programs read from the internal storage unit 160, and various setting information. The processing of the processing unit 120, the Doppler processing unit 130, and the image generation unit 140 is controlled, and the ultrasonic image data stored in the image memory 150 is controlled to be displayed on the monitor 15.

  The interface unit 180 is an interface that controls the exchange of various types of information between the input device 14 or the network and the apparatus main body 100.

  The overall configuration of the ultrasonic diagnostic apparatus according to the first embodiment has been described above. With this configuration, the ultrasonic diagnostic apparatus 1 according to the first embodiment performs zoom processing and panning with a simple operation without losing sight of a portion of interest by a viewer by performing the processing described in detail below. It is configured to be able to perform processing.

  Here, the conventional ultrasonic diagnostic apparatus includes an enlarged display function that enlarges and displays an arbitrary range of the ultrasonic image on the monitor, and arbitrarily moves the enlarged display range. For example, when a conventional ultrasonic diagnostic apparatus receives an instruction to shift to a mode for performing enlarged display from an operator, the conventional ultrasonic diagnostic apparatus sets a target range to be subjected to enlarged display at the center of the ultrasonic image. Then, when an instruction for specifying an enlargement ratio is received from an operator, the conventional ultrasonic diagnostic apparatus changes the size of the target range according to the enlargement ratio in order to display the monitor with the specified enlargement ratio ( Zoom processing, Zoom processing). Further, when an instruction for designating the position of the target range is received from the operator, the conventional ultrasonic diagnostic apparatus moves the target range to the instructed position (pan processing, Pan processing).

  Therefore, when an ultrasonic image is enlarged and displayed in a conventional ultrasonic diagnostic apparatus, if a part of interest of the doctor such as the position of the needle tip or the position of the lesion is displayed on the monitor, the doctor is interested. It is possible to browse in detail the part with. On the other hand, if a part of interest to the doctor is not displayed on the monitor, the doctor loses sight of the part of interest.

  Therefore, the ultrasonic diagnostic apparatus 1 according to the first embodiment performs a zoom process and a pan process with a simple operation without losing sight of a part of interest by a viewer, and a control unit 170 described below. Execute the process.

  As illustrated in FIG. 1, the control unit 170 according to the first embodiment includes a setting unit 171 and a display control unit 172.

  The setting unit 171 sets a range including the region of interest in the ultrasonic image. For example, the setting unit 171 sets a target range at a position including a puncture-related region that is a region related to puncture in the ultrasound image as the region of interest. The puncture-related region is a region that is particularly watched on the ultrasonic image at the time of puncture.

  For example, when an enlarged display mode for enlarging and displaying an ultrasound image is started, the setting unit 171 executes a target range setting process for setting a target range to be enlarged and displayed. The target range setting process includes an initial setting process for setting a target range using a target range preset, a zoom process for changing the size of the set target range, and a pan for moving the position of the set target range. Processing.

  First, the initial setting process according to the first embodiment will be described. For example, in the puncture mode, the setting unit 171 receives an instruction from the operator via the input device 14 to start an enlarged display mode that is a mode for performing enlarged display. Subsequently, the setting unit 171 acquires the preset of the target range from the internal storage unit 160. Then, the setting unit 171 acquires the puncture guide rail position information corresponding to the ID of the puncture adapter 12 and the ID of the puncture guide rail from the internal storage unit 160. Then, the setting unit 171 sets the target range at a position where the target range includes the puncture needle entrance and the center position of the target range overlaps the puncture guideline (puncture guide rail). The puncture needle entrance represents the position on the body surface of the subject P into which the puncture needle 13 is inserted. Further, the setting unit 171 can obtain the ID of the puncture adapter 12 and the ID of the puncture guide rail from an instruction to start the puncture mode. The target range preset is, for example, information defining the center position and range (size in the horizontal and vertical directions) of the target range, and is stored in the internal storage unit 160 in advance. Specifically, the preset of the target range is information in which a value designated in advance by the operator or a value at the previous operation is stored. Furthermore, the preset of the target range may be selected according to the puncture guide rail by storing the preset of the target range in the internal storage unit 160 for each ID of the puncture adapter 12 and the ID of the puncture guide rail.

  FIG. 2 is a diagram for explaining the initial setting process according to the first embodiment. FIG. 2 illustrates an initial position of the target range 23 (zoom target range) set for the ultrasound image 21 on which the puncture guideline 22 is superimposed. In FIG. 2, the vertical broken line inside the target range 23 is a middle line in the horizontal direction of the target range 23, and the horizontal broken line is a middle line in the vertical direction of the target range 23. The intersection of the broken lines corresponds to the center position 24 of the target range 23. In FIG. 2, the upper end portion of the puncture guideline 22 in the ultrasonic image 21 corresponds to the puncture needle entrance 25.

  In the example illustrated in FIG. 2, the setting unit 171 acquires a preset target range from the internal storage unit 160. Then, the setting unit 171 sets the acquired preset range as the initial range of the target range 23. Then, the setting unit 171 acquires the position information of the puncture guideline 22 from the internal storage unit 160. Then, the setting unit 171 sets the upper end portion of the puncture guideline 22 in the ultrasonic image 21 as the puncture needle entrance 25. Then, the setting unit 171 sets the initial center position of the target range 23 at a position where the target range 23 includes the puncture needle entrance 25 and the center position 24 of the target range 23 overlaps the puncture guideline 22. As described above, the setting unit 171 sets the initial position of the target range 23 by setting the initial center position and the initial range of the target range 23. Note that, when the enlarged display is performed using the target range 23 set here, the display control unit 172 enlarges and displays the ultrasonic image 21 on the monitor 15 as the display image 26.

  Next, zoom processing according to the first embodiment will be described. For example, the setting unit 171 receives an instruction to zoom in or an instruction to zoom out (abbreviated as zoom in / zoom out instruction) from the operator via the input device 14. Here, a case where two foot pedals are used as the input device 14 in order to perform zoom processing will be described. In this case, one of the foot pedals is a foot pedal for instructing zoom-in, and is set to increase the enlargement ratio of the ultrasonic image by a predetermined ratio in response to a single depression. The other foot pedal is a zoom-out instruction foot pedal, and is set to decrease the magnification rate of the ultrasonic image by a predetermined ratio in response to a single depression.

  For example, when the operator steps on a zoom-in instruction foot pedal, the setting unit 171 receives an instruction to zoom in. Then, when the pan processing has not been executed, the setting unit 171 reduces the target range at a position where the target range includes the puncture needle entrance and the center position of the target range overlaps the puncture guideline. In addition, when the pan process has been executed, the setting unit 171 reduces the target range without changing the center position of the target range. Here, the reason why the target range is reduced is that the enlarged ultrasonic image is enlarged.

  On the other hand, when the operator steps on the zoom-out instruction foot pedal, the setting unit 171 receives an instruction to perform zoom-out. Then, when the pan processing has not been executed, the setting unit 171 expands the target range at a position where the target range includes the puncture needle entrance and the center position of the target range overlaps the puncture guideline. In addition, when the pan process has been performed, the setting unit 171 expands the target range without changing the center position of the target range. Here, the reason why the target range is enlarged is that the enlarged ultrasonic image is reduced.

  Here, the reason why the setting unit 171 changes the size of the target range at a position where the target range includes the puncture needle entrance is that the puncture needle entrance is a region of interest to the operator (doctor). . However, when the puncture needle 13 is inserted into the body of the subject P and the needle tip of the puncture needle 13 passes through the puncture needle entry, the puncture needle entry is not a part of interest to the operator. That is, when the puncture needle entrance is no longer a part of interest to the operator, the operator is assumed to move the target range by performing a pan process described later. For this reason, when the pan process has not been executed, the setting unit 171 changes the size of the target range at a position where the target range includes the puncture needle entrance. On the other hand, when the pan processing has been executed, the setting unit 171 changes the size of the target range without changing the center position of the target range, for example, regardless of the position of the puncture needle entrance. To do. This puncture needle entry is an example of a puncture-related region.

  In addition, the setting unit 171 changes the size of the target range at a position where the center position of the target range overlaps the puncture guideline. When the puncture is performed, the part of interest of the operator is placed on the puncture guideline. Because there is. This puncture guideline is an example of a puncture-related region.

  3A and 3B are diagrams for explaining zoom processing according to the first embodiment. FIG. 3A illustrates a case where an instruction to zoom in is received, and FIG. 3B illustrates a case where an instruction to zoom out is received. Note that FIGS. 3A and 3B illustrate a case where the pan process has not been executed.

  As illustrated in FIG. 3A, the setting unit 171 receives an instruction to zoom in when the pan process has not been executed. Then, the setting unit 171 includes the puncture needle entrance 25 and reduces the set target range 23 by a predetermined ratio at the position where the center position 24 overlaps the puncture guideline 22 and sets it as the target range 27. Note that, when the enlarged display is performed using the target range 27 set here, the display control unit 172 enlarges and displays the ultrasonic image 21 on the monitor 15 as the display image 28.

  As illustrated in FIG. 3B, the setting unit 171 receives an instruction to zoom out when the pan process has not been executed. Then, the setting unit 171 includes the puncture needle entrance 25 and enlarges the set target range 23 by a predetermined percentage at the position where the center position 24 overlaps the puncture guideline 22 and sets it as the target range 29. Note that, when the enlarged display is performed using the target range 29 set here, the display control unit 172 enlarges and displays the ultrasonic image 21 on the monitor 15 as the display image 30.

  Next, the bread process according to the first embodiment will be described. For example, the setting unit 171 receives a movement instruction for moving the target range from the operator via the input device 14. Here, a case where two foot pedals are used as the input device 14 in order to perform pan processing will be described. In this case, one of the foot pedals is an upward movement instruction foot pedal, and is set to move the set target range upward by a predetermined distance on the ultrasonic screen in response to a single depression. Yes. The other foot pedal is a foot pedal for instructing a downward movement, and is set to move a predetermined target range downward on the ultrasonic image by a predetermined distance in response to a single depression. Yes.

  For example, the setting unit 171 receives an instruction to move the set target range downward by a predetermined distance on the ultrasonic image when the operator steps on the foot pedal for the downward movement instruction. Then, the setting unit 171 moves the target range at a position where the center position 24 of the target range overlaps the puncture guideline. The setting unit 171 moves the target range at a position where the center position of the target range overlaps the puncture guideline because, when puncture is performed, the part of interest of the operator is on the puncture guideline. is there.

  FIG. 4 is a diagram for explaining the bread processing according to the first embodiment. FIG. 4 illustrates a case where an instruction to move a predetermined distance downward is received.

  As illustrated in FIG. 4, the setting unit 171 receives an instruction to move a predetermined distance downward. Then, the setting unit 171 moves the set target range 23 by a predetermined distance so as to set the target range 31 so that the center position 24 overlaps the puncture guideline 22. Note that, when the enlarged display is performed using the target range 31 set here, the display control unit 172 enlarges and displays the ultrasonic image 21 on the monitor 15 as the display image 32.

  Thus, the setting unit 171 sets the target range by executing the target range setting process including the initial setting process, the zoom process, and the pan process in the enlarged display mode. The setting unit 171 then outputs the currently set target range to the display control unit 172 when an ultrasound image is displayed by the display control unit 172 described later.

  The display control unit 172 enlarges and displays the ultrasonic image included in the target range on the monitor 15. For example, the display control unit 172 receives the target range set by the target range setting process from the setting unit 171. Then, the display control unit 172 enlarges and displays the ultrasonic image included in the received target range on the monitor 15.

  FIG. 5 is a flowchart showing a processing procedure of the ultrasonic diagnostic apparatus 1 according to the first embodiment. As shown in FIG. 5, the image generation unit 140 of the ultrasonic diagnostic apparatus 1 according to the first embodiment generates ultrasonic image data (step S101). If the puncture mode is selected (Yes at Step S102), the image generation unit 140 generates a puncture guideline and superimposes it on the ultrasound image (Step S103).

  Subsequently, when the setting unit 171 of the ultrasonic diagnostic apparatus 1 is in the enlarged display mode (Yes in Step S104), the target range setting process is performed (Step S105). The processing procedure of the target range setting process will be described later with reference to FIG. Then, the display control unit 172 of the ultrasonic diagnostic apparatus 1 enlarges and displays the ultrasonic image included in the target range set by the target range setting process on the monitor 15 (step S106).

  On the other hand, when the display control unit 172 of the ultrasonic diagnostic apparatus 1 is not in the puncture mode (No at Step S102) or when not in the enlarged display mode (No at Step S104), the ultrasonic image generated by the image generation unit 140 is displayed. The data is displayed on the monitor 15 as an ultrasonic image (step S107).

  FIG. 6 is a flowchart illustrating a processing procedure of a target range setting process according to the first embodiment. This target range setting process corresponds to the process performed in step S105 of FIG.

  As illustrated in FIG. 6, the setting unit 171 of the ultrasonic diagnostic apparatus 1 according to the first embodiment acquires the preset of the target range from the internal storage unit 160 when the enlarged display mode is started (Yes in step S201). (Step S202).

  Subsequently, the setting unit 171 acquires position information of the puncture guideline from the internal storage unit 160 (step S203). Then, the setting unit 171 sets the initial position of the target range at a position where the target range includes the puncture needle entrance and the center position of the target range overlaps the puncture guideline (step S204).

  Subsequently, when the setting unit 171 receives a zoom-in / zoom-out instruction from the operator (Yes in Step S205), the setting unit 171 determines whether or not the pan process has been performed (Step S206). If the pan process has not been executed (No at Step S206), the setting unit 171 reduces or reduces the target range at a position where the target range includes the puncture needle entrance and the center position of the target range overlaps the puncture guideline. Enlarge (step S207).

  On the other hand, when the pan processing has been executed (Yes at Step S206), the setting unit 171 reduces or enlarges the target range without changing the center position of the target range (Step S208). If the zoom-in / zoom-out instruction is not received from the operator (No at Step S205), the setting unit 171 proceeds to Step S209 without executing Steps S206 to S208.

  Subsequently, when receiving the movement instruction (Yes at Step S209), the setting unit 171 moves the target range at a position where the center position of the target range overlaps the puncture guideline (Step S210). When the setting unit 171 does not accept the movement instruction (No at Step S209), the setting unit 171 proceeds to the process at Step S211 without executing the process at Step S210.

  Subsequently, the setting unit 171 outputs the set target range to the display control unit 172 (step S211). Then, the setting unit 171 repeatedly executes the processing from step S205 to step S211 until the enlarged display mode ends (No at step S212). Then, when the enlarged display mode ends (Yes at Step S212), the setting unit 171 ends the process.

  Note that the processing procedures described above do not necessarily have to be executed in the above order. For example, the process of step S203 described above may be executed after the process of step S202 is executed.

  Moreover, although the process procedure mentioned above demonstrated the case where an enlarged display was performed in puncture mode, the ultrasound diagnosing device 1 can perform an enlarged display also when not in the puncture mode. In this case, a conventional technique related to enlarged display is appropriately selected and applied to the ultrasonic diagnostic apparatus 1.

  As described above, the ultrasonic diagnostic apparatus 1 according to the first embodiment generates an ultrasonic image based on the reflected wave received by the ultrasonic probe. Then, the ultrasound diagnostic apparatus 1 sets a range including the region of interest in the ultrasound image. Then, the ultrasound diagnostic apparatus 1 enlarges and displays the ultrasound image included in the target range on the monitor 15. For this reason, the ultrasonic diagnostic apparatus 1 can perform zoom processing and pan processing with a simple operation without losing sight of the part of interest of the viewer.

  For example, in a conventional ultrasonic diagnostic apparatus, when displaying an ultrasonic image in an enlarged manner, if a part of interest of the doctor such as the position of the puncture needle entrance or the position of the puncture guideline is not displayed on the monitor, the doctor , Lose sight of the part of interest. On the other hand, the ultrasonic diagnostic apparatus 1 according to the first embodiment performs enlarged display so that a region of interest to the doctor is included in the target range. For this reason, the doctor can perform puncture safely without losing sight of the site of interest.

  For example, the conventional ultrasonic diagnostic apparatus allows the operator to input an arbitrary enlargement ratio when performing zoom processing, but not only the magnification of the target range but also the target range so that the part of interest does not come off. It was also necessary to specify the position of. On the other hand, when performing the zoom process, the ultrasonic diagnostic apparatus 1 according to the first embodiment limits the position of the target range by the region of interest. The enlargement ratio can be changed so that the part of interest does not come off in the operation by the switch.

  In addition, for example, the conventional ultrasonic diagnostic apparatus can enlarge and display an arbitrary position of the operator when performing pan processing, but the arbitrary position is designated in detail so that the part of interest does not come off. There was a need to be done. On the other hand, since the ultrasound diagnostic apparatus 1 according to the first embodiment limits the center position of the target range on the puncture guideline when performing pan processing, a simple operation (for example, two foot switches) The range of interest can be moved so that the part of interest does not come off.

(Second Embodiment)
In the first embodiment, the case where the center position of the target range is limited on the puncture guideline in the panning process has been described, but the embodiment is not limited thereto. For example, the ultrasonic diagnostic apparatus 1 may automatically move the target range according to the position of the needle tip of the puncture needle 13 when the position of the needle tip of the puncture needle 13 can be acquired. Therefore, in the second embodiment, a case where the ultrasonic diagnostic apparatus 1 automatically moves the target range according to the position of the needle tip of the puncture needle 13 will be described.

  The configuration of the ultrasonic diagnostic apparatus 1 according to the second embodiment is basically the same as the configuration of the ultrasonic diagnostic apparatus 1 described in FIG. 1, but for acquiring the position of the needle tip of the puncture needle 13. The point which has a structure and a part of process in the setting part 171 differ. Therefore, in the second embodiment, only differences from the first embodiment will be described, and description of similar points will be omitted.

  The ultrasonic diagnostic apparatus 1 according to the second embodiment acquires the position of the needle tip of the puncture needle 13 using a magnetic sensor attached to the puncture needle 13. This magnetic sensor detects a three-dimensional magnetic field formed by the transmitter. The magnetic sensor then calculates the coordinates of the needle tip of the puncture needle 13 in the space with the transmitter as the origin, based on the detected magnetic field information. Then, the magnetic sensor transmits the calculated coordinates of the tip of the puncture needle 13 to the setting unit 171. Note that the ultrasonic diagnostic apparatus 1 may acquire the position of the tip of the puncture needle 13 using an infrared sensor, an optical sensor, a camera, or the like instead of the magnetic sensor. The image generation unit 140 may generate image data of the puncture needle 13 using the coordinates of the needle tip of the puncture needle 13 calculated by the magnetic sensor, and may superimpose the image data on the ultrasonic image.

  The setting unit 171 according to the second embodiment has the same function as the setting unit 171 described in the first embodiment. Furthermore, the setting unit 171 according to the second embodiment acquires the position of the needle tip of the puncture needle 13 and moves the target range according to the acquired position of the needle tip of the puncture needle 13.

  For example, the setting unit 171 receives the position of the needle tip of the puncture needle 13 acquired by the magnetic sensor. Then, the setting unit 171 determines whether the position of the needle tip of the puncture needle 13 is below a predetermined position. For example, the predetermined position is defined according to the size of the current target range, and specifically, is defined by the center position when the upper end of the current target range is aligned with the upper end of the ultrasonic image. Then, the setting unit 171 does not execute the pan processing of the target range until the position of the needle tip of the puncture needle 13 passes a predetermined position. Then, the setting unit 171 moves the center position of the target range to the needle tip position of the puncture needle 13 when the needle tip position of the puncture needle 13 passes the predetermined position and is below the predetermined position. Let

  7A and 7B are diagrams for explaining the pan processing according to the second embodiment. 7A and 7B illustrate a case where pan processing is performed on the ultrasound image 21 in which the puncture guideline 22 and the puncture needle 13 are superimposed and displayed.

  In the example shown in FIG. 7A, the needle tip position 33 of the puncture needle 13 is above the center position 24 of the target range 23. In this case, the setting unit 171 does not execute the pan process for the target range 24. 7B, when the needle tip position 33 passes through the center position 24 and the needle tip position 33 is below the center position 24, the center position 24 is moved to the needle tip position 33. By doing so, the target range 23 is moved according to the position 33 of the needle tip.

  FIG. 8 is a flowchart illustrating a processing procedure of a target range setting process according to the second embodiment. This target range setting process corresponds to the process performed in step S105 of FIG.

  In FIG. 8, the processing from step S301 to step S308 is the same as the processing from step S201 to step S208 described in FIG. In FIG. 8, the processing from step S311 to step S312 is the same as the processing from step S211 to step S212 described in FIG.

  As shown in FIG. 8, the setting unit 171 according to the second embodiment determines whether or not the position of the needle tip of the puncture needle is below a predetermined position (step S309). When the setting unit 171 is below the predetermined position (Yes at Step S309), the setting unit 171 moves the center position of the target range to the position of the needle tip of the puncture needle (Step S310). On the other hand, when the position of the needle tip of the puncture needle is above the predetermined position (No at Step S309), the setting unit 171 proceeds to the process of Step S311 without executing the process of Step S310.

  As described above, the ultrasonic diagnostic apparatus 1 according to the second embodiment acquires the position of the needle tip of the puncture needle, and moves the target range according to the acquired position of the needle tip of the puncture needle. For this reason, the ultrasonic diagnostic apparatus 1 according to the second embodiment can perform pan processing with a simple operation.

(Third embodiment)
In the above-described embodiment, the case where the ultrasonic diagnostic apparatus 1 performs the target range setting process using the puncture needle entrance, the puncture guideline, the position of the needle tip of the puncture needle, and the like as the region of interest has been described. Is not limited to this. For example, the ultrasonic diagnostic apparatus 1 may perform the target range setting process using the measurement result when the lesion site is measured. Therefore, in the third embodiment, a case will be described in which the ultrasound diagnostic apparatus 1 performs a target range setting process using a measurement result.

  FIG. 9 is a diagram for explaining the configuration of the ultrasonic diagnostic apparatus 1 according to the third embodiment. As shown in FIG. 9, the ultrasonic diagnostic apparatus 1 according to the third embodiment is different from the ultrasonic diagnostic apparatus 1 shown in FIG. 1 in that it has a measurement unit 173 and the processing in the setting unit 171. Some are different. Therefore, in the third embodiment, only points different from the first embodiment will be described, and description of similar points will be omitted.

  The measurement unit 173 according to the third embodiment measures the distance between a plurality of points designated by the operator in the ultrasonic image. Then, the measurement unit 173 outputs the measured measurement result to the setting unit 171.

  For example, the measurement unit 173 receives an instruction to designate any two points (pixels) on the ultrasonic image from the operator via the input device 14. Then, the measurement unit 173 measures the distance between the two specified points based on the pixel size in the real space. Then, the measurement unit 173 outputs a measurement result in which the positions of the two specified points are associated with the distance therebetween to the setting unit 171.

  The setting unit 171 according to the third embodiment has the same function as the setting unit 171 described in the first embodiment. Furthermore, the setting unit 171 according to the third embodiment sets a range including the measurement position measured by the measurement unit 173 as a target range. For example, the setting unit 171 compares the distance measured by the measurement unit 173 with the cauterization possible range using the puncture needle. This cauterization possible range is defined for each puncture needle used for cauterization, and is stored in the internal storage unit 160 in association with the ID of the puncture needle, for example.

  Then, when the measured distance is smaller than the cauterizable range, the setting unit 171 sets the target range at a position including the midpoint between the two measured points. On the other hand, when the measured distance is larger than the cauterizable range, the setting unit 171 sets the target range at a position including the measured range.

  Each of FIG. 10A to FIG. 10D is a diagram for describing processing of the setting unit 171 according to the third embodiment. 10A and 10B illustrate the processing of the setting unit 171 when the measured distance is smaller than the cauterization possible range. 10C and 10D illustrate the processing of the setting unit 171 when the measured distance is larger than the cauterization possible range.

  FIG. 10A illustrates a case where the setting unit 171 sets the initial position of the target range when the measured distance is smaller than the cauterizable range. In this case, the setting unit 171 specifies the positions of the two measurement ranges 34 in the ultrasonic image 21 based on the measurement result measured by the measurement unit 173. Then, the setting unit 171 sets the initial position of the target range 23 at a position including the puncture needle entrance 25 and the midpoint 35 of the measurement range 34.

  FIG. 10B illustrates a case where zoom processing and pan processing are performed on the target range 23 set in FIG. 10A. For example, when receiving a zoom-in / zoom-out instruction from the operator, the setting unit 171 reduces or enlarges the target range 23 at a position including the midpoint 35. Further, for example, when receiving the movement instruction, the setting unit 171 moves the target range 23 at a position including the midpoint 35.

  FIG. 10C illustrates a case where the setting unit 171 sets the initial position of the target range when the measured distance is larger than the cauterization possible range. In this case, the setting unit 171 specifies the position of the measurement range 34. Then, the setting unit 171 sets the initial position of the target range 23 at a position including the puncture needle entrance 25 and the measurement range 34.

  FIG. 10D illustrates a case where zoom processing and pan processing are performed on the target range 23 set in FIG. 10C. For example, when the setting unit 171 receives a zoom-in / zoom-out instruction from the operator, the setting unit 171 reduces or enlarges the target range 23 at a position including the measurement range 34. Further, for example, when receiving the movement instruction, the setting unit 171 moves the target range 23 at a position including the measurement range 34.

  Thus, the ultrasonic diagnostic apparatus 1 according to the third embodiment measures the distance between two points designated by the operator in the ultrasonic image. Then, the ultrasound diagnostic apparatus 1 sets a range including the measured measurement position as a target range. For this reason, the ultrasonic diagnostic apparatus 1 can perform zoom processing and pan processing with a simple operation without losing sight of the part of interest of the viewer.

  Further, for example, when the measured distance is smaller than the causable range, the ultrasonic diagnostic apparatus 1 sets the target range at a position including the midpoint between the two measured points. On the other hand, when the measured distance is larger than the cauterizable range, the ultrasonic diagnostic apparatus 1 sets the target range at a position including the measured measurement range. For this reason, the ultrasonic diagnostic apparatus 1 can perform zoom processing and pan processing according to the measurement result.

(Fourth embodiment)
In the above-described embodiment, the case where the enlarged display is manually performed has been described, but the embodiment is not limited to this. For example, the ultrasound diagnostic apparatus 1 may automatically perform enlarged display by using a plurality of regions of interest. Therefore, in the fourth embodiment, a case will be described in which the ultrasound diagnostic apparatus 1 automatically performs enlarged display by using two regions of interest.

  The configuration of the ultrasonic diagnostic apparatus 1 according to the fourth embodiment is basically the same as the configuration of the ultrasonic diagnostic apparatus 1 described in FIG. 9, but for acquiring the position of the needle tip of the puncture needle 13. The point which has a structure and a part of process in the setting part 171 differ. Therefore, in the fourth embodiment, only differences from the third embodiment will be described, and description of similar points will be omitted.

  The ultrasonic diagnostic apparatus 1 according to the fourth embodiment acquires the position of the needle tip of the puncture needle using a magnetic sensor attached to the puncture needle 13. Since the description of this magnetic sensor is the same as the description of the magnetic sensor described in the second embodiment, the description is omitted.

  The setting unit 171 according to the second embodiment has the same function as the setting unit 171 described in the second and third embodiments. Furthermore, the setting unit 171 according to the fourth embodiment sets a target range at a position including a plurality of regions of interest.

  11A and 11B are diagrams for explaining processing of the setting unit 171 according to the fourth embodiment. FIG. 11A illustrates a case where the setting unit 171 sets the initial position of the target range. FIG. 11B illustrates a case where zoom processing and pan processing are performed on the target range 23 set in FIG. 11A.

  As shown in FIG. 11A, the setting unit 171 matches the upper end of the target range 23 with the upper end of the ultrasonic image 21, and the midpoint 35 of the measurement range corresponds to the inside of the predetermined distance 36 from the target range 23. The initial position of the target range 23 is set at a position where the center position 24 of the 23 overlaps the puncture guideline 22. Then, as illustrated in FIG. 11B, when the puncture needle 13 is inserted, the setting unit 171 obtains a midpoint 38 between the needle tip position 33 and the midpoint 35 of the measurement range. Then, the setting unit 171 moves the center position 24 of the target range 23 to the midpoint 38. Then, the setting unit 171 reduces the target range 23 so that the midpoint 35 of the measurement range and the needle tip position 33 of the puncture needle 13 coincide with each other within the predetermined distance 36 from the target range 23.

  Thus, even if the positions of the two regions of interest change, the setting unit 171 moves the center position of the target range 23 to the midpoint between the two regions of interest. Then, the setting unit 171 changes the size of the target range 23 so that the midpoint 35 of the measurement range and the position 33 of the needle tip are located inside the predetermined range 36 from the target range 23. Therefore, the ultrasonic diagnostic apparatus 1 can automatically set an appropriate target range based on the two regions of interest.

(Fifth embodiment)
In the embodiment described above, the case where the zoom process and the pan process are performed using the puncture-related information related to puncture has been described, but the embodiment is not limited to this. For example, the ultrasound diagnostic apparatus 1 may perform zoom processing and pan processing using a region of interest different from the puncture-related information. Therefore, in the fifth embodiment, a case will be described in which the ultrasound diagnostic apparatus 1 performs zoom processing and pan processing using a region of interest different from puncture-related information.

  FIG. 12 is a diagram for explaining the configuration of the ultrasonic diagnostic apparatus 1 according to the fifth embodiment. As illustrated in FIG. 12, the ultrasonic diagnostic apparatus 1 according to the fifth embodiment includes a region of interest setting unit 174 as compared with the ultrasonic diagnostic apparatus 1 illustrated in FIG. Part of the process is different. Therefore, in the fifth embodiment, only points different from the first embodiment will be described, and description of similar points will be omitted.

  The region-of-interest setting unit 174 according to the fifth embodiment sets a region of interest corresponding to the position of the lesion site in the ultrasound image. For example, the setting unit 171 receives an instruction to set the position and size of the region of interest from the operator via the input device 14. Then, the region-of-interest setting unit 174 sets the region of interest of the designated size at the designated position, and causes the image generation unit 140 to generate image data representing the region of interest at the set position.

  The setting unit 171 according to the fifth embodiment sets a target range at a position including the region of interest set by the region of interest setting unit 174.

  13A and 13B are diagrams for explaining processing of the setting unit 171 according to the fifth embodiment. FIG. 13A illustrates a case where the setting unit 171 sets the initial position of the target range. FIG. 13B illustrates a case where zoom processing and pan processing are performed on the target range 23 set in FIG. 13A.

  As illustrated in FIG. 13A, the setting unit 171 sets the initial position of the target range 23 at a position where the center position 24 of the target range 23 corresponds to the center 38 of the region of interest 37. Then, as illustrated in FIG. 13B, when the setting unit 171 receives a zoom-in / zoom-out instruction from the operator, the setting unit 171 reduces or enlarges the target range 23 without changing the position of the center position 24. Further, for example, when receiving the movement instruction, the setting unit 171 moves the target range 23 at a position including the center 38 of the region of interest 37.

  Thus, the ultrasonic diagnostic apparatus 1 according to the fifth embodiment can perform zoom processing and pan processing using a region of interest different from the puncture-related information.

(Sixth embodiment)
Although the first to fourth embodiments have been described so far, the present invention may be implemented in various different forms other than the above-described embodiments.

  For example, in the above-described embodiment, the case where the ultrasound diagnostic apparatus 1 moves the target range at a position where the center position of the target range overlaps the puncture guideline is described. However, the center position of the target range may not necessarily be used. . For example, when the puncture guideline is controlled to be included in the target range even when the target range is moved, the same effect as the above-described effect can be obtained.

  Further, for example, in the above-described embodiment, the case where the puncture guideline is displayed when the target range is moved at the position where the center position of the target range overlaps the puncture guideline has been described, but the embodiment is limited to this. It is not a thing. For example, even if the puncture guideline is not displayed, the ultrasonic diagnostic apparatus 1 can move the target range at a position where the center position of the target range overlaps the puncture guideline as long as the position information of the puncture guideline has been acquired. Is possible. That is, in the embodiment described above, the puncture guideline does not necessarily have to be displayed.

(Medical image processing device)
In the above-described embodiment, the case where the ultrasound diagnostic apparatus 1 enlarges and displays an ultrasound image using the region of interest has been described, but the embodiment is not limited to this. For example, when the medical image processing apparatus displays an ultrasound image generated by the ultrasound diagnostic apparatus 1, the ultrasound image can be enlarged and displayed using the region of interest.

  FIG. 14 is a diagram for explaining the configuration of the medical information system according to the sixth embodiment. As shown in FIG. 14, the medical information system according to the sixth embodiment includes an ultrasonic diagnostic apparatus 1, a medical image diagnostic apparatus 2, a medical image storage apparatus 3, and a medical image processing apparatus 4. Each device is in a state where it can communicate with each other directly or indirectly via, for example, a hospital LAN (Local Area Network) 2 installed in the hospital. For example, when a PACS (Picture Archiving and Communication System) is introduced in a medical information system, each apparatus transmits and receives medical image data and the like in accordance with DICOM (Digital Imaging and Communications in Medicine) standards.

  The medical image diagnostic apparatus 2 includes an X-ray diagnostic apparatus, an X-ray CT apparatus, an MRI apparatus, an ultrasonic diagnostic apparatus, a SPECT (Single Photon Emission Computed Tomography) apparatus, a PET (Positron Emission computed Tomography) apparatus, a SPECT apparatus, and an X-ray CT. The apparatus is a SPECT-CT apparatus in which the apparatus is integrated, a PET-CT apparatus in which the PET apparatus and the X-ray CT apparatus are integrated, a specimen inspection apparatus, or the like. For example, the medical image diagnostic apparatus 2 images a subject in response to an operation from the imaging engineer, and generates medical image data and a test result.

  The medical image storage device 3 is a device that stores medical image data. For example, the medical image storage device 3 includes a database that stores medical image data, stores medical image data and examination results generated by the medical image diagnostic device 2 in the database, and stores them.

  The medical image processing apparatus 4 is an image processing apparatus that performs image processing on medical image data. For example, the medical image processing apparatus 4 acquires medical image data and examination results from the medical image storage apparatus 3 and displays the acquired medical image data and examination results on a monitor.

  As shown in FIG. 14, the medical image processing apparatus 4 includes an acquisition unit 4a, a setting unit 4b, a display control unit 4c, and an image data storage unit 4d.

  The acquisition unit 4a acquires the ultrasound image generated in the ultrasound diagnostic apparatus 1 and the region of interest in the ultrasound image, and stores them in the image data storage unit 4d in association with each other. For example, the acquisition unit 4a acquires an ultrasound image and position information of a puncture guideline when the ultrasound image is displayed. Then, the acquisition unit 4a stores the acquired ultrasonic image and puncture guideline position information in the image data storage unit 4d in association with each frame.

  The setting unit 4b sets a range including the region of interest in the ultrasonic image. For example, the setting unit 171 executes a target range setting process for setting a target range to be enlarged and displayed in the enlarged display mode. The display control unit 4c enlarges and displays the ultrasonic image included in the target range set by the setting unit 4b on the display unit. The image data storage unit 4d stores an ultrasound image and a region of interest in the ultrasound image in association with each other.

  Thereby, when the ultrasonic image stored in the image data storage unit 4d is displayed, the medical image processing apparatus 4 according to the fifth embodiment displays an enlarged range including the region of interest in the ultrasonic image. Set as the target range. Then, the medical image processing apparatus 4 enlarges and displays the ultrasonic image included in the target range on the display unit. For this reason, the medical image processing apparatus 4 can perform zoom processing and pan processing with a simple operation without losing sight of the part of interest of the viewer.

  According to at least one embodiment described above, the zoom process and the pan process can be performed with a simple operation without losing sight of the part of interest of the viewer.

  As mentioned above, although some embodiment of this invention was described, these embodiment is shown as an example and is not intending limiting the range of invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are also included in the invention described in the claims and the equivalents thereof.

  For example, each component of the ultrasonic diagnostic apparatus 1 illustrated in FIG. 1 is functionally conceptual, and does not necessarily have to physically have the ultrasonic diagnostic apparatus 1 as illustrated. That is, the specific form of distribution / integration of each component of the ultrasonic diagnostic apparatus 1 is not limited to the illustrated one.

DESCRIPTION OF SYMBOLS 1 Ultrasonic diagnostic apparatus 140 Image generation part 170 Control part 171 Setting part 172 Display control part

Claims (10)

A generating unit that generates an ultrasonic image based on the reflected wave received by the ultrasonic probe;
A setting unit for setting a range including a region of interest in the ultrasonic image;
An ultrasonic diagnostic apparatus comprising: a display control unit that enlarges and displays the ultrasonic image included in the range on a display unit. The generation unit generates a puncture guideline that is image data representing a puncture route of a puncture needle inserted from a puncture adapter attached to the ultrasonic probe, and superimposes the puncture guideline on the ultrasonic image,
The setting unit sets the range as a region of interest including a puncture-related region that is a region related to puncture in the ultrasound image,
The ultrasonic diagnostic apparatus according to claim 1, wherein the display control unit enlarges and displays an image included in the range on the display unit among ultrasonic images on which the puncture guideline is superimposed.   When the setting unit receives an enlargement ratio change instruction for changing the enlargement ratio when the ultrasonic image is displayed in an enlarged manner, the setting section enters the puncture needle corresponding to the upper end portion of the puncture guideline in the ultrasonic image. The ultrasound according to claim 2, wherein the range includes a mouth, and the size of the range is changed according to the enlargement ratio change instruction at a position where a center position of the range overlaps the puncture guideline. Diagnostic device.   The setting unit, when receiving a movement instruction for moving the range, moves the range according to the movement instruction at a position where a center position of the range overlaps the puncture guideline. The ultrasonic diagnostic apparatus according to claim 2 or 3.   The said setting part acquires the position of the needle point of the said puncture needle, and moves the said range according to the position of the acquired needle point of the puncture needle, The one of Claims 2-4 characterized by the above-mentioned. An ultrasonic diagnostic apparatus according to 1. The ultrasonic image further includes a measurement unit that measures a distance between at least two points designated by the operator,
The ultrasonic diagnostic apparatus according to claim 2, wherein the setting unit sets a range including at least two points whose distances are measured by the measurement unit as the range.   The setting unit sets the range to a position including a midpoint between two measured points when the distance measured by the measuring unit is smaller than the cauterizing range defined for each puncture needle. The ultrasonic diagnostic apparatus according to claim 6, wherein when the distance is larger than the cauterization possible range, the range is set at a position including at least two measured points.   When there are two regions of interest, the setting unit moves the center position of the range to the midpoint of the two regions of interest, and each of the two regions of interest is located within a predetermined distance from the range. The ultrasonic diagnostic apparatus according to claim 1, wherein the size of the range is changed. A storage unit that associates and stores an ultrasound image and a region of interest in the ultrasound image;
A medical image processing apparatus comprising: a setting unit that sets a range including a region of interest in the ultrasonic image; and a display control unit that enlarges and displays the ultrasonic image included in the range on a display unit. A generation procedure for generating an ultrasound image based on the reflected wave received by the ultrasound probe;
A control program for causing a computer to execute a setting procedure for setting a range including a region of interest in the ultrasonic image, and a display control procedure for enlarging and displaying the ultrasonic image included in the range on a display unit.

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