JP2017093813A - Ultrasonic image diagnostic apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce a burden of setting a Doppler gate.SOLUTION: An ultrasonic image diagnostic apparatus 100 includes: an ultrasonic probe 2 for transmitting a transmission ultrasonic wave to a subject, and receiving a reflection ultrasonic wave to generate a reception signal; a transmission part 12 for generating a transmission signal and outputting it to the ultrasonic probe 2; a reception part 13 for generating an acoustic ray data according to the reception signal input from the ultrasonic probe 2; a color flow processing part 15 for generating tomographic image data indicating a tissue of the subject from the acoustic ray data; a movement region detection part 17 for detecting a movement region of the tissue from the generated tomographic image data; an operation part 11 for receiving operation input of a scan line of at least one Doppler gate; and a gate position setting part 19 for setting a gate position of the Doppler gate based on the operation-input scan line and the detected movement region.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an ultrasonic diagnostic imaging apparatus.

  Ultrasound diagnosis is a simple operation of touching the ultrasound probe from the body surface, and the state of heart beat and fetal movement can be obtained as an ultrasound image, and because it is highly safe, the examination is repeated. Can do. 2. Description of the Related Art There is known an ultrasonic diagnostic imaging apparatus that is used for performing an ultrasonic diagnosis and displays an ultrasonic image.

  Also known is TDI (Tissue Doppler Imaging), which measures and displays the movement of a tissue such as the heart of a subject using ultrasound. For example, by TDI, the motion of the myocardium is imaged with red corresponding to the motion approaching the ultrasound probe and blue corresponding to the motion moving away from the ultrasound probe. The synthesized TDI image is synthesized and displayed as a B (Brightness) mode image as an ultrasonic tomographic image by luminance, and the myocardial contour is automatically traced and displayed from the velocity data of the myocardial motion. An ultrasonic color Doppler diagnostic apparatus that generates a speed with an arrow and displays it on the contour is known (see Patent Document 1).

JP-A-6-114059

  In TDI, when measuring the blood flow velocity of a subject, a user moves and operates a Doppler gate (sample volume) on an ultrasonic image to set a region to be measured for motion velocity. However, in the conventional ultrasonic color Doppler diagnostic apparatus, the user has to set the Doppler gate arbitrarily, which is complicated.

  An object of the present invention is to reduce the burden of setting a Doppler gate.

In order to solve the above-mentioned problem, an ultrasonic diagnostic imaging apparatus according to claim 1 is provided:
An ultrasonic diagnostic imaging apparatus that transmits and receives ultrasonic waves by an ultrasonic probe that transmits a transmission ultrasonic wave to a subject according to a transmission signal, receives a reflected ultrasonic wave, and generates a reception signal,
A transmission unit that generates a transmission signal and outputs the transmission signal to the ultrasonic probe;
A receiving unit for generating sound ray data in accordance with a reception signal input from the ultrasonic probe;
An image generating unit that generates tomographic image data indicating the tissue of the subject from the sound ray data;
A motion region detector for detecting a motion region of a tissue from the generated tomographic image data;
An operation unit that receives an operation input of a scanning line of at least one Doppler gate;
A gate position setting unit configured to set a gate position of the Doppler gate based on the operation-input scanning line and the detected motion region.

According to a second aspect of the present invention, in the ultrasonic diagnostic imaging apparatus according to the first aspect,
A contour extracting unit for extracting a tissue contour from the detected motion region data;
The gate position setting unit sets the gate position of the Doppler gate at a position based on an intersection between the operation-input scanning line and the extracted contour line.

The invention according to claim 3 is the ultrasonic diagnostic imaging apparatus according to claim 2,
The contour extraction unit extracts a tissue contour line from the detected motion region data, or extracts a tissue contour line from the detected motion region data and colors it,
A first image synthesis unit configured to synthesize the extracted contour line or the extracted colored contour line and the generated tomographic image data;

The invention according to claim 4 is the ultrasonic diagnostic imaging apparatus according to any one of claims 1 to 3,
The transmission unit outputs a D-mode transmission signal to the ultrasonic probe according to the set Doppler gate,
A Doppler processing unit is provided that calculates blood flow velocity at the gate position of the set Doppler gate from the sound ray data in the D mode and outputs blood flow velocity information.

The invention according to claim 5 is the ultrasonic diagnostic imaging apparatus according to claim 4,
The blood flow velocity information is numerical data of blood flow velocity or waveform image data in which blood flow velocity is spectrum-displayed.

The invention according to claim 6 is the ultrasonic diagnostic imaging apparatus according to claim 4 or 5,
A second image synthesis unit that synthesizes the generated tomographic image data, the set Doppler gate, and the blood flow velocity information and displays the synthesized information on the display unit;

The invention according to claim 7 is the ultrasonic diagnostic imaging apparatus according to claim 6,
The second image synthesis unit synthesizes the gates of the set Doppler gates and the blood flow velocity information at the gate positions in association with each other.

The invention according to claim 8 is the ultrasonic diagnostic imaging apparatus according to any one of claims 1 to 7,
The operation unit receives a gate selection input of the set Doppler gate,
The gate position setting unit resets the gate position of the selectively input Doppler gate.

The invention according to claim 9 is the ultrasonic diagnostic imaging apparatus according to any one of claims 1 to 8,
The operation unit receives a correction input of the gate position and width of the set Doppler gate,
The gate position setting unit resets the gate position and width of the corrected input Doppler gate.

The invention according to claim 10 is the ultrasonic diagnostic imaging apparatus according to any one of claims 1 to 9,
The ultrasonic diagnostic imaging apparatus is connected to an electrocardiograph that detects electrocardiogram information of the subject's heart,
A control unit is provided that causes the transmission unit to output a D-mode transmission signal at the position of the set Doppler gate at a predetermined timing of the motion state of the tissue of the detected electrocardiogram information or the generated tomographic image data.

The invention according to claim 11 is the ultrasonic diagnostic imaging apparatus according to any one of claims 1 to 10,
The gate position setting unit sets a gate position of the Doppler gate based on the detected motion region, following a change in tissue motion.

The invention according to claim 12 is the ultrasonic diagnostic imaging apparatus according to any one of claims 1 to 11,
The gate position setting unit sets the gate width of the Doppler gate from the range of tissue motion based on the detected motion region.

The invention according to claim 13 is the ultrasonic diagnostic imaging apparatus according to any one of claims 1 to 12,
The gate position setting unit collectively resets the plurality of gates into one gate when the plurality of gate positions of the set Doppler gates are within a predetermined distance.

The invention according to claim 14 is the ultrasonic diagnostic imaging apparatus according to any one of claims 1 to 13,
The tomographic image data is at least one of B-mode image data and TDI image data.

  According to the present invention, the burden of setting the Doppler gate can be reduced.

It is a block diagram which shows the function structure of the ultrasonic image diagnostic apparatus of embodiment of this invention. It is a figure which shows the 1st TDI synthetic | combination image containing an outline. It is a figure which shows the 1st TDI synthetic | combination image which set the scanning line of the Doppler gate. (A) is a figure which shows the 1st TDI synthetic | combination image containing a 1st Doppler gate. (B) is a figure which shows the 1st TDI synthetic | combination image containing a 2nd Doppler gate. It is a figure which shows the synthesized image of a 1st TDI synthetic | combination image and a FFT waveform image. It is a figure which shows the 2nd TDI synthetic | combination image which has a 1st Doppler gate. It is a figure which shows the synthesized image of the 1st TDI synthetic | combination image which has arrange | positioned the delete button, and the FFT waveform image which has arrange | positioned the delete button. It is a figure which shows the synthetic | combination image of the 1st TDI synthetic | combination image and the blood flow velocity data of a gate position. It is a figure which shows the synthesized image of the 1st TDI synthetic | combination image and the blood flow velocity data of a gate position, and the electrocardiogram image. It is a figure which shows the 1st TDI synthetic | combination image containing the 1st, 3rd Doppler gate.

  Embodiments and modifications according to the present invention will be described in detail in order with reference to the accompanying drawings. The present invention is not limited to the illustrated example.

(Embodiment)
Embodiments according to the present invention will be described with reference to FIGS. First, the apparatus configuration of the present embodiment will be described with reference to FIG. FIG. 1 is a block diagram illustrating a functional configuration of the ultrasonic diagnostic imaging apparatus 100 according to the present embodiment.

  As shown in FIG. 1, the ultrasonic diagnostic imaging apparatus 100 includes an ultrasonic diagnostic imaging apparatus main body 1 and an ultrasonic probe 2. The ultrasonic probe 2 transmits ultrasonic waves (transmitted ultrasonic waves) to a subject such as a living body (not shown) and receives reflected waves (reflected ultrasonic waves: echoes) reflected by the subject. To do. The ultrasonic diagnostic imaging apparatus main body 1 is connected to the ultrasonic probe 2 via the cable 3, and transmits an electrical signal transmission signal to the ultrasonic probe 2, whereby the subject is applied to the ultrasonic probe 2. Based on a received signal that is an electrical signal generated by the ultrasonic probe 2 in response to the reflected ultrasonic wave from within the subject received by the ultrasonic probe 2. The internal state in the subject is imaged as an ultrasonic image. Communication between the ultrasonic diagnostic imaging apparatus main body 1 and the ultrasonic probe 2 may be performed by wireless communication such as UWB (Ultra Wide Band) instead of wired communication via the cable 3.

  The ultrasonic diagnostic imaging apparatus 100 alternately transmits a B-mode transmission ultrasonic wave and a TDI mode transmission ultrasonic wave to the subject, and a received signal corresponding to the received reflected ultrasonic wave from the subject. The internal state in the subject is imaged as an ultrasonic tomographic image (B-mode image) based on the received signal, TDI transmission ultrasound is transmitted to the subject, and a received signal corresponding to the received reflected ultrasound Then, the movement (movement) of the tissue of the subject is imaged as a TDI image (CFM (Color Flow Mapping) image in the tissue), and the TDI image and the B-mode image are synthesized to display the TDI synthesized image. Then, the ultrasonic diagnostic imaging apparatus 100 automatically sets a Doppler gate, and based on the Doppler gate automatically set according to the TDI composite image, transmits ultrasonic waves for the B mode to the subject, and for the TDI mode. Transmission ultrasound and transmission ultrasound for D mode (pulse Doppler) are transmitted in order, and imaged as a TDI composite image based on the received signals corresponding to the received B mode and D mode reflected ultrasound from within the subject. At the same time, an FFT waveform image is generated as a spectrum display image indicating the blood flow velocity of the gate position and width of the Doppler gate based on the received signal corresponding to the D-mode reflected ultrasound from within the subject, and a TDI composite image Display at the same time.

  In the present embodiment, an example in which the tissue of the subject is the heart will be described, but the present invention is not limited to this.

  The ultrasonic probe 2 includes transducers (not shown) made of piezoelectric elements, and a plurality of the transducers are arranged in a one-dimensional array in the azimuth direction, for example. In the present embodiment, for example, the ultrasonic probe 2 including 192 transducers is used. Note that the vibrators may be arranged in a two-dimensional array. The number of transducers of the ultrasonic probe 2 can be arbitrarily set. Further, in the present embodiment, the convex scanning type electronic scanning probe is adopted for the ultrasound probe 2, but either an electronic scanning method or a mechanical scanning method may be adopted, and a linear scanning method, Either the sector scanning method or the convex scanning method can be adopted.

  Further, an ECG (ElectroCardioGraph) 4 is connected to the ultrasonic diagnostic imaging apparatus main body 1 via a connector or wireless communication such as wireless communication. The ECG 4 detects electrocardiogram information of each cardiac phase of the subject's heart and outputs it to the ultrasonic diagnostic imaging apparatus body 1.

  The ultrasonic diagnostic imaging apparatus body 1 includes a control unit 10, an operation unit 11, a transmission unit 12, a reception unit 13, a B-mode image processing unit 14 as an image generation unit, a color flow processing unit 15 as an image generation unit, and Doppler processing. Unit 16, motion region detection unit 17, contour extraction unit 18, gate position setting unit 19, image composition unit 20, and display unit 21.

  The control unit 10 controls each part of the ultrasonic diagnostic imaging apparatus main body 1. The control unit 10 includes, for example, a CPU (Central Processing Unit), a ROM (Read Only Memory), and a RAM (Random Access Memory), and reads various processing programs such as a system program stored in the ROM to read the RAM. The operation of each part of the ultrasonic diagnostic imaging apparatus main body 1 is centrally controlled according to the developed program. The ROM includes a nonvolatile memory such as a semiconductor, and stores a system program corresponding to the ultrasonic diagnostic imaging apparatus 100, various processing programs that can be executed on the system program, various data, and the like. These programs are stored in the form of computer-readable program code, and the CPU sequentially executes operations according to the program code. The RAM forms a work area for temporarily storing various programs executed by the CPU and data related to these programs.

  The operation unit 11 includes various switches, buttons, a trackball, a mouse, a keyboard, and the like for inputting data such as a command to start diagnosis and personal information of a subject, and is input from a user (operator). And outputs operation information based on the input of the operator to the control unit 10. In particular, the operation unit 11 accepts input of position information of the scanning line of the Doppler gate, correction information of the gate position and width of the Doppler gate, and the like.

  The transmission unit 12 generates a transmission signal (driving signal) that is an electrical signal for the ultrasonic probe 2 under the control of the control unit 10 and supplies the transmission signal to the ultrasonic probe 2 to generate transmission ultrasonic waves. The transmitter 12 alternately transmits at least one B-mode transmission signal and at least one TDI-mode transmission signal until the later-described Doppler gate scanning line is set. 2, and after setting the scanning line of the Doppler gate, at least one transmission ultrasonic wave for B mode, at least one transmission ultrasonic wave for TDI mode, and at least one transmission ultrasonic wave for D mode. Are sequentially output to the ultrasonic probe 2. Note that the transmission order of transmission signals for the B mode, TDI mode, and D mode is not limited to this example.

  Under the control of the control unit 10, the receiving unit 13 receives a reception signal of an electrical signal corresponding to the reflected ultrasonic waves in the B mode, the TDI mode, and the D mode from the ultrasonic probe 2 via the cable 3. Sound ray data in the mode, TDI mode, and D mode are generated and output to the B-mode image processing unit 14, the color flow processing unit 15, and the Doppler processing unit 16, respectively. The receiving unit 13 includes, for example, an amplifier, an A / D conversion circuit, and a phasing addition circuit. The amplifier is a circuit for amplifying the received signal with a predetermined amplification factor set in advance for each individual path corresponding to each transducer. The A / D conversion circuit is a circuit for analog-digital conversion (A / D conversion) of the amplified received signal. The phasing addition circuit adjusts the time phase by giving a delay time to each individual path corresponding to each transducer with respect to the A / D converted received signal, and adds these (phasing addition) to generate a sound ray. It is a circuit for generating data.

  Under the control of the control unit 10, the B-mode image processing unit 14 performs envelope detection processing, logarithmic amplification, and the like on the B-mode sound ray data input from the reception unit 13, and performs gain adjustment and the like. The luminance conversion is then performed to generate B-mode image data as tomographic image data of the subject and output to the motion region detection unit 17 and the image composition unit 20. In other words, the B-mode image data represents the intensity of the received signal by luminance.

  The color flow processing unit 15 includes a phase detection unit, a corner turn control unit, an unnecessary component filter, a correlation calculation unit, a data conversion unit, a noise cut filter, an interframe filter, and a TDI image conversion unit. Then, TDI image data is generated from the sound ray data of the TDI mode input from the receiving unit 13 and is output to the motion region detecting unit 17 and the image synthesizing unit 20. The phase detector phase-detects the TDI mode sound ray data input from the receiver 13 and converts it into a TDI complex Doppler signal. The corner turn control unit arranges the TDI complex Doppler signals in the ensemble direction of the number of times of ultrasonic wave transmission / reception (number of ensembles). The unnecessary component filter filters the TDI complex Doppler signals arranged in the ensemble direction so as to remove unnecessary components such as blood flow other than tissue motion. The correlation calculation unit calculates a real part and an imaginary part of the average value (average value of the phase difference vector) of the autocorrelation calculation of the TDI complex Doppler signal from which unnecessary components are removed. The data conversion unit calculates the speed, power, and variance of tissue motion from the TDI complex Doppler signal from which unnecessary components are removed and the real part and imaginary part of the average value of the autocorrelation calculation. The noise cut filter performs filtering to remove noise with respect to the speed, power, and dispersion of tissue movement. The inter-frame filter performs filtering to smooth the change between frames and leave an afterimage with respect to the speed, power, and dispersion of the motion of the tissue from which noise has been removed. The TDI image conversion unit uses tomographic image data that is colored with red as the direction approaching the ultrasound probe 2 and blue as the direction away from the speed, power, and dispersion of the tissue motion in which changes between frames are smoothed. TDI image data as CFM image data is generated.

  The Doppler processing unit 16 includes a phase detection unit, a wall filter, a loss signal estimation unit (MSE (Missing Signal Estimation) unit), and an FFT unit. The Doppler gate input from the gate position setting unit 19 is controlled by the control unit 10. Based on the D-mode sound ray data input from the receiving unit 13, FFT waveform image data indicating the blood flow velocity at the position of the gate position information is generated based on the gate position and width of the image synthesizing unit 20. Output to. The phase detection unit performs phase detection on the D-mode sound ray data input from the reception unit 13 and converts it into a D-mode complex Doppler signal. The wall filter filters the D-mode complex Doppler signal to remove a wall component based on the internal wall movement and body movement. The loss signal estimation unit estimates and fills in the loss signal of the other mode in the D-mode complex Doppler signal from which the wall component has been removed, and makes it continuous. The FFT unit performs an FFT operation using the D-mode complex Doppler signal in which the loss signal is estimated, and generates FFT waveform image data indicating the blood flow velocity.

  The motion region detection unit 17 detects, for example, a region of a tissue having movement or movement such as a myocardium, and the B mode image data input from the B mode image processing unit 14 and color according to control of the control unit 10 A motion region of the tissue of the subject is detected from at least one of the TDI image data input from the flow processing unit 15 and output to the contour extraction unit 18, the gate position setting unit 19, and the image composition unit 20 as motion region data. To do. In the present embodiment, it is assumed that the motion region detection unit 17 detects a motion region from the TDI image data and outputs the motion region data to the contour extraction unit 18. For example, the motion region detection unit 17 uses a region in which the velocity (absolute value) in a region colored in red or blue in TDI image data or a region colored in red or blue is a predetermined threshold or more as a motion region. It is assumed that motion area data is generated.

  The contour extraction unit 18 generates a contour line of the tissue in the motion region based on the motion region data input from the motion region detection unit 17 according to the control of the control unit 10, and uses the contour position data as the gate position setting unit 19. And output to the image composition unit 20. In the present embodiment, the contour extracting unit 18 performs a contour extracting method in which a line connecting points where the change in the speed of the tissue in the motion region of the motion region data is equal to or greater than a predetermined threshold is used as the contour line. However, the present invention is not limited to this. For example, the contour extraction unit 18 may perform other contour extraction methods such as a contour extraction method that detects edges of RGB data in the motion region data and connects the edges to form contour lines. In this embodiment, the contour extracting unit 18 adds a predetermined color (for example, green (however, white in the drawing)) other than red and blue to the contour line data, for example. However, the present invention is not limited to this, and the contour line data may not be colored to a predetermined color.

  The motion region detection unit 17 may be configured to detect a motion region from the B-mode image data input from the B-mode image processing unit 14 and output the motion region data. When the motion area detection unit 17 detects the motion area from the B-mode image data, for example, the motion area is a white area of the B-mode image data or a motion area in which the luminance in the white area is equal to or higher than a predetermined threshold. Data shall be generated. Further, the contour extraction unit 18 sets an echo level threshold value corresponding to the predetermined tissue, for example, when the echo level of the predetermined tissue (myocardium or the like) and the peripheral portion is different, and is input from the motion region detection unit 17. From the motion region data based on the B-mode image data, the contour line extraction method using the position of the same echo level as the set threshold value as the contour line of the tissue, or the B-mode image data input from the motion region detection unit 17 An outline extraction method is adopted in which edges at a predetermined threshold value of luminance are detected from the motion area data and the edges are connected to form an outline. In addition, the motion region detection unit 17 and the contour extraction unit 18 are the TDI input from the tissue motion region data and contour data from the B mode image data input from the B mode image processing unit 14 and the color flow processing unit 15. A configuration may be adopted in which tissue motion region data and contour data are generated from image data, and tissue motion region data and contour data to be output are generated from the two motion region data and contour data.

  The gate position setting unit 19 scans the motion region data or contour line data input from the motion region detection unit 17 or the contour extraction unit 18 and the Doppler gate input from the user to the operation unit 11 according to the control of the control unit 10. From the line position information, the gate position and width of the Doppler gate are set, the set gate position and width are output to the Doppler processing unit 16, and Doppler gate image data of the Doppler gate having the set gate is generated to generate an image composition unit. 20 is output. In the present embodiment, the gate position setting unit 19 is located outside the tissue at the intersection of the Doppler gate scan line input from the user to the operation unit 11 and the contour line of the contour line data input from the contour extraction unit 18. It is assumed that a gate having a predetermined width is set so as to be in contact with.

It should be noted that the gate position setting unit 19 is provided between the intersection point of the scanning line of the input Doppler gate and the contour line of the input contour data (for example, between the intersection point and the adjacent intersection point). ) May be set at a position such as a midpoint of the tissue portion. That is, the Doppler gate can be set at any position on the Doppler gate scanning line and on the motion region detected by the motion region detection unit 17.
Moreover, the gate position setting part 19 is not limited to the structure which makes a gate a predetermined width. For example, the gate position setting unit 19 uses a conventionally known image processing, and uses a plurality of frames of motion region data or contour line data to move tissue (contours) during the end diastole and systole of the heart as tissue. The gate may have a width corresponding to the movement range (movement distance) of the line. The gate position setting unit 19 may be configured to detect the motion range of the tissue from the B-mode image data generated by the B-mode image processing unit 14 or the TDI image data generated by the color flow processing unit 15. .

  Under the control of the control unit 10, the image composition unit 20 receives B-mode image data input from the B-mode image processing unit 14, TDI image data input from the color flow processing unit 15, and input from the motion region detection unit 17. The motion area data thus obtained, the contour line data output from the contour extraction unit 18, the Doppler gate image data input from the gate position setting unit 19, and the FFT waveform image data output from the Doppler processing unit 16 are combined. Then, composite image data is generated and output to the display unit 21. In the present embodiment, the image synthesis unit 20 synthesizes the B-mode image data, TDI image data, and contour line data so as to overlap before setting the scanning line of the Doppler gate, and generates synthesized image data (TDI synthesized image data and After the Doppler gate scan line is set, the B mode image data, the TDI image data, the contour line data, and the Doppler gate image data are superimposed, and the TDI composite image data and the FFT waveform image data are generated. Composite image data is generated by combining the main portions so as not to overlap.

  The display unit 21 is a display device such as an LCD (Liquid Crystal Display), a CRT (Cathode-Ray Tube) display, an organic EL (Electronic Luminescence) display, an inorganic EL display, or a plasma display. The display unit 21 displays an image on the display screen according to the image data input from the image composition unit 20 under the control of the control unit 10.

  With respect to each unit included in the ultrasonic diagnostic imaging apparatus main body 1, some or all of the functions of each functional block can be realized as a hardware circuit such as an integrated circuit. The integrated circuit is, for example, an LSI (Large Scale Integration), and the LSI may be referred to as an IC, a system LSI, a super LSI, or an ultra LSI depending on the degree of integration. Further, the method of circuit integration is not limited to LSI, but may be realized by a dedicated circuit or a general-purpose processor, and connection and setting of circuit cells in FPGA (Field Programmable Gate Array) and LSI can be reconfigured. A reconfigurable processor may be used. Further, some or all of the functions of each function block may be executed by software. In this case, the software is stored in one or more storage media such as a ROM, an optical disk, or a hard disk, and the software is executed by the arithmetic processor.

  Next, with reference to FIG. 2, an operation and a display example of the ultrasonic diagnostic imaging apparatus 100 will be described. FIG. 2 is a diagram showing a TDI composite image F1 including the outline O1. FIG. 3 is a diagram showing a TDI composite image F1 in which the scanning line L1 of the Doppler gate is set. FIG. 4A shows a TDI composite image F1 including the Doppler gate DG1. FIG. 4B is a diagram showing a TDI composite image F1 including the Doppler gate DG2. FIG. 5 is a diagram showing a composite image of the TDI composite image F1 and the FFT waveform image F2.

  As a first-stage operation, the ultrasound image diagnostic apparatus 100 executes a process before setting the Doppler gate. First, under the control of the control unit 10, the transmission unit 12 generates a transmission signal for alternately transmitting a B-mode transmission ultrasonic wave and a TDI-mode transmission ultrasonic wave, and outputs the transmission signal to the ultrasonic probe 2. The ultrasonic probe 2 transmits a transmission ultrasonic wave to the subject according to the input transmission signal, receives the reflected ultrasonic wave, and outputs a reception signal to the reception unit 13. And the receiving part 13 produces | generates the sound ray data of B mode and TDI mode according to the received signal of B mode and TDI mode.

  The B-mode image processing unit 14 generates B-mode image data based on the generated B-mode sound ray data, and the color flow processing unit 15 generates the TDI mode sound-ray data. , TDI image data is generated. Then, the motion region detection unit 17 generates tissue motion region data from the generated TDI image data. Then, the contour extracting unit 18 generates tissue contour data from the generated motion region data. Then, the image composition unit 20 composes the generated B-mode image data, TDI image data, and contour line data so as to overlap each other, generates TDI composite image data, and outputs it to the display unit 21 for display.

  For example, as shown in FIG. 2, the display unit 21 synthesizes a B-mode image based on B-mode image data and a TDI image based on TDI image data and has a contour O1 based on contour data. An image F1 is displayed. In the TDI composite image F1, a red portion in which the tissue motion approaches the ultrasonic probe 2 is indicated by a hatched area, and a blue portion in which the tissue motion moves away from the ultrasound probe 2 is an amitone region. It is drawn so that the white portion of red (diagonal line) or blue (amitone) increases as the speed of the tissue increases, and the same applies to other TDI composite images.

  As a second-stage operation, processing after the Doppler gate setting is executed in the ultrasonic diagnostic imaging apparatus 100. First, the operation unit 11 accepts an operation input of a scanning line of a Doppler gate from a user corresponding to a TDI composite image being displayed. For example, as shown in FIG. 3, the display unit 21 displays a TDI composite image F <b> 1 including the scanning line L <b> 1 of the input Doppler gate.

  Then, under the control of the control unit 10, the gate position setting unit 19 operates based on the scanning line of the Doppler gate input by the operation and the contour line data generated by the contour extraction unit 18. A Doppler gate having a gate having a predetermined width is set at at least one position in contact with the outside of the tissue at the intersection with the line, and the Doppler gate image data is generated. Then, the image composition unit 20 synthesizes the TDI composite image data including the contour line data and the Doppler gate image data so as to overlap each other, generates new TDI composite image data, and outputs the TDI composite image data to the display unit 21 for display.

  For example, as shown in FIG. 4A, a TDI composite image F1 having a contour line O1 based on the contour line data and an automatically set Doppler gate DG1 is displayed on the display unit 21. The Doppler gate DG1 has four gates G1, G2, G3, G4 in order from the top.

  Note that the Doppler gate displayed in contact with the contour line on the TDI composite image is not limited to one having gates G1, G2, G3, and G4 configured by two parallel lines, such as Doppler gate DG1. For example, as shown in FIG. 4B, a configuration may be adopted in which a Doppler gate DG2 having gates g1, g2, g3, and g4 configured by circles filled in the interior is displayed. The widths of the gates g1, g2, g3, and g4 are expressed by, for example, the size (diameter) of a circle that fills the inside.

  Then, under the control of the control unit 10, the transmission unit 12 sequentially transmits the B-mode transmission ultrasound and the TDI-mode transmission ultrasound, and the D-mode transmission ultrasound corresponding to the set Doppler gate. A transmission signal is generated and output to the ultrasonic probe 2. The ultrasonic probe 2 transmits a transmission ultrasonic wave to the subject according to the input transmission signal, receives the reflected ultrasonic wave, and outputs a reception signal to the reception unit 13. And the receiving part 13 produces | generates the sound ray data of B mode, TDI mode, and D mode according to the received signal of B mode and TDI mode.

  The B-mode image processing unit 14 generates B-mode image data based on the generated B-mode sound ray data, and the color flow processing unit 15 generates the TDI mode sound-ray data. The TDI image data is generated, and the Doppler processing unit 16 generates FFT waveform image data indicating the blood flow velocity of the gate position and width of the Doppler gate based on the generated D-mode sound ray data. Then, the motion region detection unit 17 generates motion region data from the generated TDI image data.

  Then, the image composition unit 20 composes the generated B-mode image data, TDI image data, contour line data, and Doppler image data so as to overlap each other to generate TDI composite image data, and the TDI composite image data and the FFT waveform image The data is combined with at least the main part so as not to overlap to generate composite image data, which is output and displayed on the display unit 21.

  For example, as shown in FIG. 5, the display unit 21 includes a TDI composite image F1 having a contour O1 based on contour data and an automatically set Doppler gate DG1, and an FFT waveform image F2 based on FFT waveform image data. , Are displayed. The FFT waveform image F2 includes an FFT waveform image F21 corresponding to the gate G1, an FFT waveform image F22 corresponding to the gate G2, an FFT waveform image F23 corresponding to the gate G3, an FFT waveform image F24 corresponding to the gate G4, The FFT waveform images F21, F22, F23, and F24 are arranged in order from the top.

  It is also possible to accept an operation input of correction information on the gate position and width of the Doppler gate via the operation unit 11. When the correction information is input, the second stage operation is executed. In this operation, the gate position setting unit 19 re-executes the Doppler gate having the gate position and the width corresponding to the correction information input. Set.

  Thereafter, the composite image of the Doppler gate image, the TDI composite image, and the FFT waveform image is updated and displayed in real time in accordance with transmission / reception of ultrasonic waves. The Doppler gate is set and displayed to follow the movement of the tissue.

  As described above, according to the present embodiment, the ultrasound diagnostic imaging apparatus 100 generates a transmission signal and outputs the transmission signal to the ultrasound probe 2 and the reception signal input from the ultrasound probe 2. A receiving unit 13 that generates sound ray data in accordance with the color flow processing unit 15 that generates TDI image data as tomographic image data indicating the motion of the tissue of the subject from the sound ray data, and the generated TDI image data. A motion region detection unit 17 for detecting a motion region of tissue and outputting motion region data, a contour extraction unit 18 for extracting tissue contour data from the detected motion region data, and an operation of one Doppler gate scan line The gate position and the predetermined width of the Doppler gate are set at a position in contact with the intersection of the operation unit 11 that receives the input, the operation-input scanning line, and the contour line of the extracted contour line data.

  Therefore, the gate position and width of the Doppler gate can be automatically set from the contour data of the tissue of the TDI image data, and the burden of setting the Doppler gate for the user can be reduced.

  The contour extraction unit 18 extracts tissue contour data from the detected motion region data and adds color to the tissue, and the ultrasonic diagnostic imaging apparatus 100 generates extracted contoured contour data. And an image composition unit 20 that composes the TDI image data (and B-mode image data). For this reason, by displaying the TDI composite image data, the user can easily visually recognize the outline of the tissue, and can more easily recognize the outline by coloring.

  In addition, the transmission unit 12 outputs a D-mode transmission signal at the set position of the Doppler gate to the ultrasonic probe 2. The ultrasonic diagnostic imaging apparatus 100 calculates the blood flow velocity at the set gate position and width of the Doppler gate from the D-mode sound ray data, and outputs FFT waveform image data by spectrum display as blood flow velocity information. For this reason, blood flow velocity information can be easily measured according to the set Doppler gate.

  In addition, the image composition unit 20 synthesizes the generated TDI composition image data, the set Doppler gate, and the FFT waveform image data as blood flow velocity information and displays them on the display unit 21. For this reason, the user can easily visually recognize the blood flow velocity information by the FFT waveform.

  The operation unit 11 receives a correction input of the gate position and width of the set Doppler gate, and the gate position setting unit 19 resets the gate position and width of the corrected Doppler gate. Therefore, the user can easily correct the gate position and width of the automatically set Doppler gate.

  In addition, the gate position setting unit 19 recognizes the movement and movement of the movement region detected by the movement region detection unit 17 as the movement of the tissue, and follows the movement of the tissue to set the gate position of the Doppler gate. For this reason, the Doppler gate of the exact position according to the motion of the tissue can be set.

(First modification)
A first modification of the above embodiment will be described with reference to FIG. FIG. 6 is a diagram showing a TDI composite image F3 having a Doppler gate DG1.

  This modification is an example in which TDI composite image data having no contour line data is generated and displayed, and a Doppler gate is set using detected motion region data. In the present modification, the ultrasonic diagnostic imaging apparatus 100 is used as in the above embodiment. However, in the present modification, the contour extraction unit 18 may be deleted from the ultrasonic image diagnostic apparatus 100 without generating the contour line data of the contour extraction unit 18.

  Next, with reference to FIG. 6, an operation and a display example of the ultrasonic diagnostic imaging apparatus 100 according to this modification will be described.

  As a first-stage operation, the ultrasound image diagnostic apparatus 100 executes a process before setting the Doppler gate. First, under the control of the control unit 10, the transmission unit 12 generates a transmission signal for alternately transmitting a B-mode transmission ultrasonic wave and a TDI-mode transmission ultrasonic wave, and outputs the transmission signal to the ultrasonic probe 2. The ultrasonic probe 2 transmits a transmission ultrasonic wave to the subject according to the input transmission signal, receives the reflected ultrasonic wave, and outputs a reception signal to the reception unit 13. And the receiving part 13 produces | generates the sound ray data of B mode and TDI mode according to the received signal of B mode and TDI mode.

  The B-mode image processing unit 14 generates B-mode image data based on the generated B-mode sound ray data, and the color flow processing unit 15 generates the TDI mode sound-ray data. , TDI image data is generated. Then, the motion region detection unit 17 generates motion region data from the generated TDI image data. Then, the image composition unit 20 composes the generated B-mode image data and TDI image data so as to overlap each other, generates TDI composite image data, and outputs it to the display unit 21 for display.

  As a second-stage operation, processing after the Doppler gate setting is executed in the ultrasonic diagnostic imaging apparatus 100. First, the operation unit 11 accepts an operation input of a scanning line of a Doppler gate from a user corresponding to a TDI composite image being displayed.

  Then, under the control of the control unit 10, the gate position setting unit 19 operates based on the scanning line of the Doppler gate input by the operation and the movement line data generated by the movement region detection unit 17. A Doppler gate having a gate having a predetermined width is set at at least one position in contact with the outside of the tissue in the motion region, and the Doppler gate image data is generated. Then, the image composition unit 20 composes the TDI composition image data and the Doppler gate image data so as to overlap each other, generates new TDI composition image data, and outputs and displays the TDI composition image data on the display unit 21.

  For example, as shown in FIG. 6, a TDI composite image F3 having an automatically set Doppler gate DG1 is displayed on the display unit 21. The operation after the Doppler gate display is the same as the operation in the second stage of the above embodiment.

  As described above, according to the present modification, the gate position setting unit 19 performs the gate position and width (predetermined width) of the Doppler gate based on the scanning line that has been operated and the motion region detected by the motion region detection unit 17. Set. Therefore, the gate position and width of the Doppler gate can be automatically set from the tissue contour data of the TDI image data, the burden of the user's Doppler gate setting can be reduced, and the contour extraction unit 18 is not required. The configuration of the diagnostic device 100 can be simplified.

(Second modification)
A second modification of the above embodiment will be described with reference to FIG. FIG. 7 is a diagram showing a composite image of a TDI composite image F1 in which delete buttons B11, B12, B13, and B14 are arranged and an FFT waveform image F2 in which delete buttons B21, B22, B23, and B24 are arranged.

  This modification is an example in which a gate that does not measure blood flow can be deleted and an FFT waveform image can also be deleted in an automatically set Doppler gate. In the present modification, the ultrasonic diagnostic imaging apparatus 100 is used as in the above embodiment.

  Next, with reference to FIG. 7, an operation and a display example of the ultrasonic diagnostic imaging apparatus 100 in the present modification will be described.

  The operation of the first stage is the same as the operation of the first stage of the above embodiment.

  As a second-stage operation, processing after the Doppler gate setting is executed in the ultrasonic diagnostic imaging apparatus 100. First, similarly to the above embodiment, the Doppler gate is set, and the TDI composite image data synthesized so as to superimpose the B-mode image data, the Doppler gate image data, and the TDI image data is displayed on the display unit 21.

  Then, similarly to the above embodiment, B-mode image data, TDI image data, and FFT waveform image data are generated.

  Then, the image composition unit 20 composes the generated B-mode image data, TDI image data, contour line data, and Doppler image data so as to overlap each other to generate TDI composite image data, and the TDI composite image data and the FFT waveform image The composite image data is generated by synthesizing the data so that at least the main part is not overlapped. In the generated composite image data, a delete button for accepting a delete operation of each gate of the Doppler gate of the TDI image data corresponds to each gate. A delete button that is arranged at a position and accepts an FFT waveform deletion operation corresponding to each gate of the FFT waveform image data is arranged at a position in each FFT waveform image, and the composite image data in which the delete button is arranged is displayed on the display unit 21. To display.

  For example, as shown in FIG. 7, the display unit 21 includes an outline O1 based on the outline data, an automatically set Doppler gate DG1, and delete buttons B11, B12, and B13 corresponding to the gates G1, G2, G3, and G4. , B14 and the delete buttons B21, B22, B23, B24 in the FFT waveform images F21, F22, F23, F24 corresponding to the gates G1, G2, G3, G4 based on the TDI composite image F1 and the FFT waveform image data, respectively. A composite image having the FFT waveform image F2 having

  When a delete button from the user is clicked via the operation unit 11, the Doppler gate and the FFT waveform corresponding to the clicked delete button are deleted, and the Doppler processing unit 16 corresponds to the deleted gate. The calculation of blood flow velocity (FFT waveform image data generation) is terminated.

  In the above operation, the delete button is arranged as a display element. However, the present invention is not limited to this. Other display elements for selecting each gate of the automatically set Doppler gate and its FFT waveform image, such as a check box and a selection button, may be displayed.

  As described above, according to this modification, the operation unit 11 receives the gate selection input of the set Doppler gate, and the gate position setting unit 19 resets the gate position of the selected Doppler gate. For this reason, the user can freely select a desired gate.

(Third Modification)
A third modification of the above embodiment will be described with reference to FIG. FIG. 8 is a diagram showing a composite image of the TDI composite image F1 and the blood flow velocity data I1, I2, I3, and I4 at the positions of the gates G1, G2, G3, and G4.

  This modification is an example in which a blood flow velocity measured corresponding to each gate is displayed as a number in an automatically set Doppler gate. In the present modification, the ultrasonic diagnostic imaging apparatus 100 is used as in the above embodiment.

  Next, with reference to FIG. 8, the operation | movement and display example of the ultrasonic image diagnostic apparatus 100 in this modification are demonstrated. The operation of the first stage is the same as the operation of the first stage of the above embodiment.

  As a second-stage operation, processing after the Doppler gate setting is executed in the ultrasonic diagnostic imaging apparatus 100. First, similarly to the above-described embodiment, the TDI composite image data synthesized so that the B-mode image data and the TDI image data having the Doppler gate are overlapped is displayed on the display unit 21.

  Then, B-mode image data and TDI image data are generated in the same manner as in the above embodiment. The Doppler processing unit 16 calculates the blood flow velocity at each gate position of the set Doppler gate based on the input D-mode sound ray data, and outputs the calculated blood flow velocity data to the image synthesis unit 20. To do.

  Then, the image composition unit 20 synthesizes the generated B-mode image data, TDI image data, contour line data, and blood flow velocity data so as to overlap each other, generates TDI composite image data, and displays it on the display unit 21.

  For example, as shown in FIG. 8, the display unit 21 includes an outline O1 based on the outline data, an automatically set Doppler gate DG1, and blood flow velocity data I1, I2 corresponding to the gates G1, G2, G3, G4. , I3, and I4, a TDI composite image F1 is displayed.

  As described above, according to the present modification, the transmission unit 12 outputs a D-mode transmission signal to the ultrasound probe 2 in accordance with the set Doppler gate. The Doppler processing unit 16 calculates the blood flow velocity of the set gate position and width of the Doppler gate from the D-mode sound ray data, and outputs the blood flow velocity numerical data as the blood flow velocity information. The image synthesizing unit 20 synthesizes the generated TDI synthesized image data, the set Doppler gate, and the blood flow velocity numerical data, and displays them on the display unit 21. For this reason, the user can easily visually recognize the blood flow velocity information by numerical values.

  Further, the image composition unit 20 synthesizes each set gate of the Doppler gate and numerical data of the blood flow velocity at each gate position in association with each other by an arrow. Therefore, the user can easily visually recognize the correspondence between each gate and the blood flow velocity numerical data as blood flow velocity information.

  The association between each gate of the Doppler gate and the blood flow velocity information is not limited to the configuration performed by the arrows. The association may be performed by another correspondence line such as a straight line, or the display order of each gate and each blood flow velocity information may be matched. In FIG. 8, the gates G1, G2, G3, G4 and the blood flow velocity data I1, I2, I3, I4 are in the same order from the top.

(Fourth modification)
With reference to FIG. 9, the 4th modification of the said embodiment is demonstrated. FIG. 9 is a diagram showing a composite image of the TDI composite image F1 and the electrocardiogram image F4 with the composite image of the blood flow velocity data I1, I2, I3 and I4 at the positions of the gates G1, G2, G3 and G4.

  This modification is an example in which the blood flow velocity measured corresponding to each gate is updated in synchronization with the R wave of the electrocardiogram waveform in the automatically set Doppler gate. The R wave of the electrocardiogram waveform is a wave when the heart contracts, and is a wave located between the P wave and the S wave of the electrocardiogram waveform. In the present modification, the ultrasonic diagnostic imaging apparatus 100 is used as in the above embodiment.

  Next, with reference to FIG. 9, the operation | movement and display example of the ultrasonic image diagnostic apparatus 100 in this modification are demonstrated. The operation of the first stage is the same as the operation of the first stage of the above embodiment.

  As a second-stage operation, processing after the Doppler gate setting is executed in the ultrasonic diagnostic imaging apparatus 100. First, similarly to the above-described embodiment, the TDI composite image data synthesized so that the B-mode image data and the TDI image data having the Doppler gate are overlapped is displayed on the display unit 21.

  Then, the controller 10 receives ECG information of the subject from the ECG 4. Then, B-mode image data and TDI image data are generated in the same manner as in the above embodiment. However, the control unit 10 controls the transmission signal output of the transmission unit 12 so that the timing of ultrasonic transmission in the D mode becomes the generation timing of the R wave of the input electrocardiogram information. Corresponding electrocardiogram waveform image data is generated and output to the image composition unit 20. The Doppler processing unit 16 calculates the blood flow velocity at each gate position of the set Doppler gate based on the input D-mode sound ray data, and outputs the calculated blood flow velocity data to the image synthesis unit 20. To do.

  Then, the image composition unit 20 composes the generated B-mode image data, TDI image data, contour line data, and blood flow velocity data so as to overlap to generate TDI composite image data, and the TDI composite image data and the electrocardiogram image The data is combined so as not to overlap, and is displayed on the display unit 21 as composite image data.

  For example, as shown in FIG. 9, the display unit 21 includes an outline O1 based on the outline data, an automatically set Doppler gate DG1, and blood flow velocity data I1, I2 corresponding to the gates G1, G2, G3, G4. , I3, and I4, and a composite image of the electrocardiogram image F4 based on the electrocardiogram image data is displayed.

  Thereafter, the TDI composite image and the electrocardiogram image are updated and displayed in real time according to the transmission / reception of the ultrasonic wave, and the blood flow velocity data according to the transmission / reception of the D mode ultrasonic wave corresponding to each R wave of the electrocardiogram information. Is updated and displayed. In this way, the blood flow velocity data is fixedly displayed until the next R wave is generated.

  As described above, according to the present modification, the ECG 4 that detects the electrocardiogram information of the subject's heart is connected to the ultrasonic diagnostic imaging apparatus 100, and the R wave generation timing as the predetermined timing of the detected electrocardiogram information is detected. The control unit 10 is configured to cause the transmission unit to output a D-mode transmission signal in accordance with the set Doppler gate. Therefore, D-mode ultrasound transmission / reception and blood flow velocity information can be measured at the R wave generation timing of the electrocardiogram information to prevent the blood flow velocity information from changing frequently and being invisible to the user. Can do.

  Note that the timing for transmitting and receiving D-mode ultrasonic waves (the timing for displaying blood flow velocity data corresponding to the Doppler gate) is not limited to when an R wave of electrocardiogram information is generated. For example, the control unit 10 uses the conventionally known image processing or the like, from the B-mode image data generated by the B-mode image processing unit 14 or the TDI image data generated by the color flow processing unit 15, It is good also as a structure which detects the end diastole, systole, etc., and transmits / receives the D mode ultrasonic wave at the detection timing.

(Fifth modification)
A fifth modification of the above embodiment will be described with reference to FIG. FIG. 10 is a diagram showing a TDI composite image including Doppler gates DG1 and DG3.

  This modification is an example in which two Doppler gates are automatically set. In the present modification, the ultrasonic diagnostic imaging apparatus 100 is used as in the above embodiment.

  Next, with reference to FIG. 10, an operation and a display example of the ultrasonic diagnostic imaging apparatus 100 in the present modification will be described. The operation of the first stage is the same as the operation of the first stage of the above embodiment.

  As a second-stage operation, processing after the Doppler gate setting is executed in the ultrasonic diagnostic imaging apparatus 100. First, the operation unit 11 accepts an operation input of scanning lines of two Doppler gates from a user corresponding to the TDI composite image being displayed.

  Then, under the control of the control unit 10, the gate position setting unit 19 is set to at least one position based on the scanning lines of the two input Doppler gates and the contour line data generated by the contour extraction unit 18. Two Doppler gates each having a gate are set, and the Doppler gate image data is generated. Then, the image composition unit 20 synthesizes the TDI composite image data including the contour line data and the Doppler gate image data so as to overlap each other, generates new TDI composite image data, and outputs the TDI composite image data to the display unit 21 for display.

  For example, as shown in FIG. 10, the display unit 21 displays a TDI composite image F1 having an outline O1 based on the outline data and automatically set Doppler gates DG1 and DG3. The Doppler gate DG3 has two gates G5 and G6. The subsequent operation is the same as that of the above embodiment.

  As described above, according to the present modification, the operation unit 11 receives the operation input of the scanning lines of the two Doppler gates, and the gate position setting unit 19 performs the operation input of the scanning line and the contour line of the extracted contour line data. The gate positions and widths (predetermined widths) of the two Doppler gates are set at positions that contact the intersections with the two. For this reason, two Doppler gates can be set automatically, and the burden of setting the Doppler gate can be further reduced.

  The number of Doppler gates to be automatically set is not limited to 2, and may be 3 or more.

(Sixth Modification)
A sixth modification of the above embodiment will be described. This modification is an example in which a plurality of gates at close positions among the gates of the Doppler gate are combined into one. When the gates of the Doppler gate are automatically arranged based on the contour line data or the motion area data, a plurality of gates may be gathered at close positions depending on the shape of the contour line or the motion area. In this case, if the blood flow velocity at substantially the same position is measured, at least one blood flow velocity may become unnecessary information.

  Therefore, for example, in the operation of the second stage of the above embodiment, the gate position setting unit 19 is based on the scanning line of the Doppler gate input by the operation and the contour line data generated by the contour extracting unit 18. The gates are set at at least one position in contact with the outside of the tissue at the intersection of the scanning line and the contour line inputted by the operation, and when there are two or more gates within a predetermined distance on the scanning line, they are set as 1 Put them together in one gate. For example, the average position of a plurality of gates may be set as the position of the gate after being combined, and one position of the plurality of gates may be set as the position of the gate after being combined. The subsequent operation is the same as the operation in the second stage of the above embodiment.

  As described above, according to the present modification, the gate position setting unit 19 collectively resets the plurality of gates into one gate when the plurality of gate positions of the set Doppler gates are within a predetermined distance. For this reason, in the place where the gates of the Doppler gates are densely gathered, a plurality of blood flow velocity information can be combined into one, unnecessary blood flow velocity information can be reduced, and the blood flow velocity information can be made easily visible to the user.

  Note that the descriptions in the above-described embodiments and modifications are examples of a suitable ultrasonic diagnostic imaging apparatus according to the present invention, and the present invention is not limited to this.

  For example, it is good also as a structure which combines at least 2 of the said embodiment and modification.

  In addition, the detailed configuration and detailed operation of each part constituting the ultrasonic diagnostic imaging apparatus 100 in the above-described embodiments and modifications can be appropriately changed without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 100 Ultrasonic image diagnostic apparatus 1 Ultrasonic image diagnostic apparatus main body 10 Control part 11 Operation part 12 Transmission part 13 Reception part 14 B-mode image processing part 15 Color flow processing part 16 Doppler processing part 17 Motion area detection part 18 Contour extraction part 19 Gate position setting unit 20 Image composition unit 21 Display unit 2 Ultrasonic probe 3 Cable 4 ECG

Claims (14)

An ultrasonic diagnostic imaging apparatus that transmits and receives ultrasonic waves by an ultrasonic probe that transmits a transmission ultrasonic wave to a subject according to a transmission signal, receives a reflected ultrasonic wave, and generates a reception signal,
A transmission unit that generates a transmission signal and outputs the transmission signal to the ultrasonic probe;
A receiving unit for generating sound ray data in accordance with a reception signal input from the ultrasonic probe;
An image generating unit that generates tomographic image data indicating the tissue of the subject from the sound ray data;
A motion region detector for detecting a motion region of a tissue from the generated tomographic image data;
An operation unit that receives an operation input of a scanning line of at least one Doppler gate;
An ultrasound diagnostic imaging apparatus comprising: a gate position setting unit that sets a gate position of the Doppler gate based on the operation-inputted scanning line and the detected motion region. A contour extracting unit for extracting a tissue contour from the detected motion region data;
The ultrasonic image diagnosis apparatus according to claim 1, wherein the gate position setting unit sets the gate position of the Doppler gate at a position based on an intersection of the operation-input scanning line and the extracted contour line. The contour extraction unit extracts a tissue contour line from the detected motion region data, or extracts a tissue contour line from the detected motion region data and colors it,
The ultrasonic diagnostic imaging apparatus according to claim 2, further comprising a first image composition unit that synthesizes the extracted contour line or the extracted contoured color line and the generated tomographic image data. . The transmission unit outputs a D-mode transmission signal to the ultrasonic probe according to the set Doppler gate,
4. The super-device according to claim 1, further comprising a Doppler processing unit that calculates a blood flow velocity at the gate position of the set Doppler gate and outputs blood flow velocity information from the sound ray data in the D mode. Sound image diagnostic equipment.   The ultrasonic image diagnostic apparatus according to claim 4, wherein the blood flow velocity information is numerical data of blood flow velocity or waveform image data in which blood flow velocity is spectrum-displayed.   The ultrasonic image according to claim 4, further comprising a second image synthesis unit that synthesizes the generated tomographic image data, the set Doppler gate, and the blood flow velocity information and displays the synthesized information on a display unit. Diagnostic device.   The ultrasonic image diagnosis apparatus according to claim 6, wherein the second image composition unit synthesizes each gate of the set Doppler gate and the blood flow velocity information at each gate position in association with each other. The operation unit receives a gate selection input of the set Doppler gate,
The ultrasonic image diagnostic apparatus according to claim 1, wherein the gate position setting unit resets a gate position of the selectively input Doppler gate. The operation unit receives a correction input of the gate position and width of the set Doppler gate,
9. The ultrasonic diagnostic imaging apparatus according to claim 1, wherein the gate position setting unit resets a gate position and a width of the corrected Doppler gate. 9. The ultrasonic diagnostic imaging apparatus is connected to an electrocardiograph that detects electrocardiogram information of the subject's heart,
And a control unit that causes the transmission unit to output a D-mode transmission signal at the set position of the Doppler gate at a predetermined timing of the motion state of the tissue of the detected electrocardiogram information or the generated tomographic image data. Item 10. The ultrasonic diagnostic imaging apparatus according to any one of Items 1 to 9.   The ultrasonic wave according to any one of claims 1 to 10, wherein the gate position setting unit sets a gate position of the Doppler gate in accordance with a change in tissue movement based on the detected movement region. Diagnostic imaging device.   The ultrasonic image diagnostic apparatus according to any one of claims 1 to 11, wherein the gate position setting unit sets a gate width of the Doppler gate from a range of tissue motion based on the detected motion region.   The gate position setting unit according to any one of claims 1 to 12, wherein when the plurality of gate positions of the set Doppler gates are within a predetermined distance, the plurality of gates are collectively set as one gate. The ultrasonic diagnostic imaging apparatus described.   The ultrasonic image diagnostic apparatus according to any one of claims 1 to 13, wherein the tomographic image data is at least one of B-mode image data and TDI image data.