US20130172748A1 - Providing user interface in ultrasound system - Google Patents
Providing user interface in ultrasound system Download PDFInfo
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- US20130172748A1 US20130172748A1 US13/730,501 US201213730501A US2013172748A1 US 20130172748 A1 US20130172748 A1 US 20130172748A1 US 201213730501 A US201213730501 A US 201213730501A US 2013172748 A1 US2013172748 A1 US 2013172748A1
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- ultrasound
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/48—Diagnostic techniques
- A61B8/488—Diagnostic techniques involving Doppler signals
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/13—Tomography
- A61B8/14—Echo-tomography
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- G06K9/46—
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/06—Measuring blood flow
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/08—Detecting organic movements or changes, e.g. tumours, cysts, swellings
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/13—Tomography
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/46—Ultrasonic, sonic or infrasonic diagnostic devices with special arrangements for interfacing with the operator or the patient
- A61B8/461—Displaying means of special interest
- A61B8/463—Displaying means of special interest characterised by displaying multiple images or images and diagnostic data on one display
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/46—Ultrasonic, sonic or infrasonic diagnostic devices with special arrangements for interfacing with the operator or the patient
- A61B8/461—Displaying means of special interest
- A61B8/465—Displaying means of special interest adapted to display user selection data, e.g. icons or menus
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/46—Ultrasonic, sonic or infrasonic diagnostic devices with special arrangements for interfacing with the operator or the patient
- A61B8/467—Ultrasonic, sonic or infrasonic diagnostic devices with special arrangements for interfacing with the operator or the patient characterised by special input means
- A61B8/469—Ultrasonic, sonic or infrasonic diagnostic devices with special arrangements for interfacing with the operator or the patient characterised by special input means for selection of a region of interest
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/88—Sonar systems specially adapted for specific applications
- G01S15/89—Sonar systems specially adapted for specific applications for mapping or imaging
- G01S15/8906—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques
- G01S15/8979—Combined Doppler and pulse-echo imaging systems
- G01S15/8984—Measuring the velocity vector
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/88—Sonar systems specially adapted for specific applications
- G01S15/89—Sonar systems specially adapted for specific applications for mapping or imaging
- G01S15/8906—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques
- G01S15/8979—Combined Doppler and pulse-echo imaging systems
- G01S15/8988—Colour Doppler imaging
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- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
- G01S7/52017—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00 particularly adapted to short-range imaging
- G01S7/52053—Display arrangements
- G01S7/52057—Cathode ray tube displays
- G01S7/5206—Two-dimensional coordinated display of distance and direction; B-scan display
- G01S7/52063—Sector scan display
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- G—PHYSICS
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- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
- G01S7/52017—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00 particularly adapted to short-range imaging
- G01S7/52053—Display arrangements
- G01S7/52057—Cathode ray tube displays
- G01S7/52071—Multicolour displays; using colour coding; Optimising colour or information content in displays, e.g. parametric imaging
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
- G01S7/52017—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00 particularly adapted to short-range imaging
- G01S7/52053—Display arrangements
- G01S7/52057—Cathode ray tube displays
- G01S7/52073—Production of cursor lines, markers or indicia by electronic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
- G01S7/52017—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00 particularly adapted to short-range imaging
- G01S7/52085—Details related to the ultrasound signal acquisition, e.g. scan sequences
- G01S7/52095—Details related to the ultrasound signal acquisition, e.g. scan sequences using multiline receive beamforming
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T5/00—Image enhancement or restoration
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/20—Analysis of motion
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/18—Methods or devices for transmitting, conducting or directing sound
- G10K11/26—Sound-focusing or directing, e.g. scanning
- G10K11/34—Sound-focusing or directing, e.g. scanning using electrical steering of transducer arrays, e.g. beam steering
- G10K11/341—Circuits therefor
Abstract
There are provided embodiments for providing a user interface for performing a filtering process upon a vector Doppler image. In one embodiment, by way of non-limiting example, an ultrasound system comprises: a processing unit configured to form vector information of a target object based on ultrasound data corresponding to the target object and form a user interface for performing the filtering process upon the vector Doppler image based on the vector information.
Description
- The present application claims priority from Korean Patent Application No. 10-2011-0144476 filed on Dec. 28, 2011, the entire subject matter of which is incorporated herein by reference.
- The present disclosure generally relates to ultrasound systems, and more particularly to providing a user interface for performing a filtering process upon a vector Doppler image in an ultrasound system.
- An ultrasound system has become an important and popular diagnostic tool since it has a wide range of applications. Specifically, due to its non-invasive and non-destructive nature, the ultrasound system has been extensively used in the medical profession. Modern high-performance ultrasound systems and techniques are commonly used to produce two-dimensional or three-dimensional ultrasound images of internal features of target objects (e.g., human organs).
- The ultrasound system may provide ultrasound images of various modes including a brightness mode image representing reflection coefficients of ultrasound signals (i.e., ultrasound echo signals) reflected from a target object of a living body with a two-dimensional image, a Doppler mode image representing velocity of a moving target object with spectral Doppler by using a Doppler effect, a color Doppler mode image representing velocity of the moving target object with colors by using the Doppler effect, an elastic image representing mechanical characteristics of tissues before and after applying compression thereto and the like.
- The ultrasound system may transmit the ultrasound signals to the living body and receive the ultrasound echo signals from the living body to form Doppler signals corresponding to a region of interest, which is set on the brightness mode image. The ultrasound system may further form the color Doppler mode image representing the velocity of the moving target object with colors based on the Doppler signals. In particular, the color Doppler image may represent the motion of the target object (e.g., blood flow) with the colors. The color Doppler image may be used to diagnose diseases of blood vessels, heart and the like. However, it is difficult to represent an accurate motion of the target object (e.g., blood flow) since the respective colors indicated by a motion value is a function of the velocity of the target object, which moves forward in a transmission direction of the ultrasound signals and moves backward in the transmission direction of the ultrasound signals.
- To resolve this problem, a vector Doppler method capable of obtaining the velocity and direction of the blood flow is used. A cross beam-based method of the vector Doppler method may acquire velocity magnitude components from at least two different directions, and combine the velocity magnitude components to detect vector information having a two-dimensional or three-dimensional direction information and a magnitude information.
- There are provided embodiments for providing a user interface for performing a filtering process upon a vector Doppler image.
- In one embodiment, by way of non-limiting example, an ultrasound system comprises: a processing unit configured to form vector information of a target object based on ultrasound data corresponding to the target object, and form a user interface for performing a filtering process upon a vector Doppler image based on the vector information.
- In another embodiment, there is provided a method of providing a user interface, comprising: a) forming vector information of a target object based on ultrasound data corresponding to the target object; and b) forming a user interface for performing a filtering process upon a vector Doppler image based on the vector information.
- The Summary is provided to introduce a selection of concepts in a simplified form that are further described below in the Detailed Description. This Summary is not intended to identify key or essential features of the claimed subject matter, nor is it intended to be used in determining the scope of the claimed subject matter.
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FIG. 1 is a block diagram showing an illustrative embodiment of an ultrasound system. -
FIG. 2 is a schematic diagram showing an example of a brightness mode image and a first region of interest. -
FIG. 3 is a block diagram showing an illustrative embodiment of an ultrasound data acquiring unit. -
FIGS. 4 to 7 are schematic diagrams showing examples of transmission directions and reception directions. -
FIG. 8 is a schematic diagram showing an example of sampling data and pixels of an ultrasound image. -
FIGS. 9 to 12 are schematic diagrams showing examples of performing a reception beam-forming. -
FIG. 13 is a schematic diagram showing an example of setting weights. -
FIG. 14 is a schematic diagram showing an example of setting a sampling data set. -
FIG. 15 is a flow chart showing a process of providing a user interface for a filtering process upon a vector Doppler image. -
FIG. 16 is a schematic diagram showing an example of the transmission directions, the reception directions, the vector information and an over-determined problem. -
FIG. 17 is a schematic diagram showing an example of the brightness mode image, the vector Doppler image and the user interface. -
FIGS. 18 to 20 are schematic diagrams showing an example of the user interface. - A detailed description may be provided with reference to the accompanying drawings. One of ordinary skill in the art may realize that the following description is illustrative only and is not in any way limiting. Other embodiments of the present invention may readily suggest themselves to such skilled persons having the benefit of this disclosure.
- Referring to
FIG. 1 , anultrasound system 100 in accordance with an illustrative embodiment is shown. As depicted therein, theultrasound system 100 may include auser input unit 110. - The
user input unit 110 may be configured to receive input information from a user. In one embodiment, the input information may include first input information for setting a first region of interest ROI1 on a brightness mode image BI, as shown inFIG. 2 . The first region of interest ROI1 may include a color box for obtaining a Doppler mode image. The Doppler mode image may include a vector Doppler image corresponding to motion (i.e., velocity and direction) of a target object. The input information may further include second input information for setting at least one region for representing only the motion of target in a specific direction on the vector Doppler image. However, it should be noted herein that the input information may not be limited thereto. InFIG. 2 , the reference numeral BV represents a blood vessel. Theuser input unit 110 may include a control panel, a track ball, a touch screen, a keyboard, a mouse and the like. - The
ultrasound system 100 may further include an ultrasounddata acquiring unit 120. The ultrasounddata acquiring unit 120 may be configured to transmit ultrasound signals to a living body. The living body may include the target object (e.g., blood flow, blood vessel, heart, etc.). The ultrasounddata acquiring unit 120 may be further configured to receive ultrasound signals (i.e., ultrasound echo signals) from the living body to acquire ultrasound data corresponding to an ultrasound image. -
FIG. 3 is a block diagram showing an illustrative embodiment of the ultrasounddata acquiring unit 120. Referring toFIG. 3 , the ultrasounddata acquiring unit 120 may include anultrasound probe 310. - The
ultrasound probe 310 may include a plurality of elements 311 (seeFIG. 4 ) for reciprocally converting between ultrasound signals and electrical signals. Theultrasound probe 310 may be configured to transmit the ultrasound signals to the living body. The ultrasound signals transmitted from theultrasound probe 310 may be plane wave signals that the ultrasound signals are not focused at a focusing point, or focused signals that the ultrasound signals are focused at the focusing point. However, it should be noted herein that the ultrasound signals may not be limited thereto. Theultrasound probe 310 may be further configured to receive the ultrasound echo signals from the living body to output electrical signals (hereinafter referred to as “reception signals”). The reception signals may be analog signals. Theultrasound probe 310 may include a convex probe, a linear probe and the like. - The ultrasound
data acquiring unit 120 may further include a transmittingsection 320. The transmittingsection 320 may be configured to control the transmission of the ultrasound signals. The transmittingsection 320 may be also configured to generate electrical signals (hereinafter referred to as “transmission signals”) in consideration of theelements 311. - In one embodiment, the transmitting
section 320 may be configured to generate transmission signals (hereinafter referred to as “brightness mode transmission signals”) for obtaining the brightness mode image BI in consideration of theelements 311. Thus, theultrasound probe 310 may be configured to convert the brightness mode transmission signals provided from the transmittingsection 320 into the ultrasound signals, transmit the ultrasound signals to the living body, and receive the ultrasound echo signals from the living body to output reception signals (hereinafter referred to as “brightness mode reception signals”). - The transmitting
section 320 may be further configured to generate transmission signals (hereinafter referred to as “Doppler mode transmission signals”) corresponding to an ensemble number in consideration of theelements 311 and at least one transmission direction of the ultrasound signals (i.e., transmission beam). Thus, theultrasound probe 310 may be configured to convert the Doppler mode transmission signals provided from the transmittingsection 320 into the ultrasound signals, transmit the ultrasound signals to the living body in the at least one transmission direction, and receive the ultrasound echo signals from the living body to output reception signals (hereinafter referred to as “Doppler mode reception signals”). The ensemble number may represent the number of transmitting and receiving the ultrasound signals to and from the living body. - As one example, the transmitting
section 320 may be configured to generate the Doppler mode transmission signals corresponding to the ensemble number in consideration of a transmission direction Tx and theelements 311, as shown inFIG. 4 . The transmission direction may be one of a direction (i.e., 0 degree) perpendicular to a longitudinal direction of theelements 311 to a maximum steering direction of the transmission beam. - As another example, the transmitting
section 320 may be configured to generate first Doppler mode transmission signals corresponding to the ensemble number in consideration of a first transmission direction Tx1 and theelements 311, as shown inFIG. 5 . Thus, theultrasound probe 310 may be configured to convert the first Doppler mode transmission signals provided from the transmittingsection 320 into the ultrasound signals, transmit the ultrasound signals to the living body in the first transmission direction Tx1, and receive the ultrasound echo signals from the living body to output first Doppler mode reception signals. The transmittingsection 320 may be further configured to generate second Doppler mode transmission signals corresponding to the ensemble number in consideration of a second transmission direction Tx2 and theelements 311, as shown inFIG. 5 . Thus, theultrasound probe 310 may be configured to convert the second Doppler mode transmission signals provided from the transmittingsection 320 into the ultrasound signals, transmit the ultrasound signals to the living body in the second transmission direction Tx2, and receive the ultrasound echo signals from the living body to output second Doppler mode reception signals. InFIG. 5 , the reference numeral PRI represents a pulse repeat interval. - In another embodiment, the transmitting
section 320 may be configured to generate the brightness mode transmission signals for obtaining the brightness mode image BI in consideration of theelements 311. Thus, theultrasound probe 310 may be configured to convert the brightness mode transmission signals provided from the transmittingsection 320 into the ultrasound signals, transmit the ultrasound signals to the living body, and receive the ultrasound echo signals from the living body to output the brightness mode reception signals. - The transmitting
section 320 may be further configured to generate the Doppler mode transmission signals corresponding to the ensemble number in consideration of the at least one transmission direction and theelements 311. Thus, theultrasound probe 310 may be configured to convert the Doppler mode transmission signals provided from the transmittingsection 320 into the ultrasound signals, transmit the ultrasound signals to the living body, and receive the ultrasound echo signals from the living body to output the Doppler mode reception signals. The ultrasound signals may be transmitted in an interleaved transmission scheme. The interleaved transmission scheme will be described below in detail. - For example, the transmitting
section 320 may be configured to generate the first Doppler mode transmission signals in consideration of the first transmission direction Tx1 and theelements 311, as shown inFIG. 6 . Thus, theultrasound probe 310 may be configured to convert the first Doppler mode transmission signals provided from the transmittingsection 320 into the ultrasound signals, and transmit the ultrasound signals to the living body in the first transmission direction Tx1. The transmittingsection 320 may be further configured to generate the second Doppler mode transmission signals in consideration of the second transmission direction Tx2 and theelements 311, as shown inFIG. 6 . Thus, theultrasound probe 310 may be configured to convert the second Doppler mode transmission signals provided from the transmittingsection 320 into the ultrasound signals, and transmit the ultrasound signals to the living body in the second transmission direction Tx2. Theultrasound probe 310 may be further configured to receive the ultrasound echo signals (i.e., ultrasound echo signals corresponding to first Doppler mode transmission signals) from the living body to output the first Doppler mode reception signals. Theultrasound probe 310 may be further configured to receive the ultrasound echo signals (i.e., ultrasound echo signals corresponding to second Doppler mode transmission signals) from the living body to output the second Doppler mode reception signals. - Thereafter, the transmitting
section 320 may be configured to generate the first Doppler mode transmission signals based on the pulse repeat interval, as shown inFIG. 6 . Thus, theultrasound probe 310 may be configured to convert the first Doppler mode transmission signals provided from the transmittingsection 320 into the ultrasound signals, and transmit the ultrasound signals to the living body in the first transmission direction Tx1. Then, the transmittingsection 320 may be further configured to generate the second Doppler mode transmission signals based on the pulse repeat interval, as shown inFIG. 6 . Accordingly, theultrasound probe 310 may be configured to convert the second Doppler mode transmission signals provided from the transmittingsection 320 into the ultrasound signals, and transmit the ultrasound signals to the living body in the second transmission direction Tx2. Theultrasound probe 310 may be further configured to receive the ultrasound echo signals (i.e., ultrasound echo signals corresponding to first Doppler mode transmission signals) from the living body to output the first Doppler mode reception signals. Theultrasound probe 310 may be further configured to receive the ultrasound echo signals (i.e., ultrasound echo signals corresponding to second Doppler mode transmission signals) from the living body to output the second Doppler mode reception signals. - As described above, the transmitting
section 320 may be configured to generate the first Doppler mode transmission signals and the second Doppler mode transmission signals corresponding to the ensemble number. - In yet another embodiment, the transmitting
section 320 may be configured to generate the brightness mode transmission signals for obtaining the brightness mode image BI in consideration of theelements 311. Thus, theultrasound probe 310 may be configured to convert the brightness mode transmission signals provided from the transmittingsection 320 into the ultrasound signals, transmit the ultrasound signals to the living body, and receive the ultrasound echo signals from the living body to output the brightness mode reception signals. - The transmitting
section 320 may be further configured to generate the Doppler mode transmission signals corresponding to the ensemble number in consideration of the at least one transmission direction and theelements 311. Thus, theultrasound probe 310 may be configured to convert the Doppler mode transmission signals provided from the transmittingsection 320 into the ultrasound signals, transmit the ultrasound signals to the living body in the at least one transmission direction, and receive the ultrasound echo signals from the living body to output the Doppler mode reception signals. The ultrasound signals may be transmitted according to the pulse repeat interval. - For example, the transmitting
section 320 may be configured to generate the first Doppler mode transmission signals in consideration of the first transmission direction Tx1 and theelements 311 based on the pulse repeat interval, as shown inFIG. 7 . Thus, theultrasound probe 310 may be configured to convert the first Doppler mode transmission signals provided from the transmittingsection 320 into the ultrasound signals, transmit the ultrasound signals to living body in the first transmission direction Tx1, and receive the ultrasound echo signals from the living body to output the first Doppler mode reception signals. The transmittingsection 320 may be further configured to generate the second Doppler mode transmission signals in consideration of the second transmission direction Tx2 and theelements 311 based on the pulse repeat interval, as shown inFIG. 7 . Thus, theultrasound probe 310 may be configured to convert the second Doppler mode transmission signals provided from the transmittingsection 320 into the ultrasound signals, transmit the ultrasound signals to the living body in the second transmission direction Tx2, and receive the ultrasound echo signals from the living body to output the second Doppler mode reception signals. - As described above, the transmitting
section 320 may be configured to generate the first Doppler mode transmission signals and the second Doppler mode transmission signals corresponding to the ensemble number based on the pulse repeat interval. - Referring back to
FIG. 3 , the ultrasounddata acquiring unit 120 may further include areceiving section 330. The receivingsection 330 may be configured to perform an analog-digital conversion upon the reception signals provided from theultrasound probe 310 to form sampling data. The receivingsection 330 may be further configured to perform a reception beam-forming upon the sampling data in consideration of theelements 311 to form reception-focused data. The reception beam-forming will be described below in detail. - In one embodiment, the receiving
section 330 may be configured to perform the analog-digital conversion upon the brightness mode reception signals provided from theultrasound probe 310 to form sampling data (hereinafter referred to as “brightness mode sampling data”). The receivingsection 330 may be further configured to perform the reception beam-forming upon the brightness mode sampling data to form reception-focused data (hereinafter referred to as “brightness mode reception-focused data”). - The receiving
section 330 may be further configured to perform the analog-digital conversion upon the Doppler mode reception signals provided from theultrasound probe 310 to form sampling data (hereinafter referred to as “Doppler mode sampling data”). The receivingsection 330 may be further configured to perform the reception beam-forming upon the Doppler mode sampling data to form reception-focused data (hereinafter referred to as “Doppler mode reception-focused data”) corresponding to at least one reception direction of the ultrasound echo signals (i.e., reception beam). - As one example, the receiving
section 330 may be configured to perform the analog-digital conversion upon the Doppler mode reception signals provided from theultrasound probe 310 to form the Doppler mode sampling data. The receivingsection 330 may be further configured to perform the reception beam-forming upon the Doppler mode sampling data to form first Doppler mode reception-focused data corresponding to a first reception direction Rx1 and second Doppler mode reception-focused data corresponding to a second reception direction Rx2, as shown inFIG. 4 . - As another example, the receiving
section 330 may be configured to perform the analog-digital conversion upon the first Doppler mode reception signals provided from theultrasound probe 310 to form first Doppler mode sampling data corresponding to the first transmission direction Tx1, as shown inFIG. 5 . The receivingsection 330 may be further configured to perform the reception beam-forming upon the first Doppler mode sampling data to form the first Doppler mode reception-focused data corresponding to the first reception direction Rx1. The receivingsection 330 may be also configured to perform the analog-digital conversion upon the second Doppler mode reception signals provided from theultrasound probe 310 to form second Doppler mode sampling data corresponding to the second transmission direction Tx2, as shown inFIG. 5 . The receivingsection 330 may be further configured to perform the reception beam-forming upon the second Doppler mode sampling data to form the second Doppler mode reception-focused data corresponding to the second reception direction Rx2. If the reception direction is perpendicular to theelements 311 of theultrasound probe 310, then a maximum aperture size may be used. - The reception beam-forming may be described with reference to the accompanying drawings.
- In one embodiment, the receiving
section 330 may be configured to perform the analog-digital conversion upon the reception signals provided through a plurality of channels CHk, wherein 1≦k≦N, from theultrasound probe 310 to form sampling data Si,j, wherein the i and j are a positive integer, as shown inFIG. 8 . The sampling data Si,j may be stored in astorage unit 140. The receivingsection 330 may be further configured to detect pixels corresponding to the sampling data based on positions of theelements 311 and positions (orientation) of pixels of the ultrasound image UI with respect to theelements 311. That is, the receivingsection 330 may select the pixels, which the respective sampling data are used as pixel data thereof, during the reception beam-forming based on the positions of theelements 311 and the orientation of the respective pixels of the ultrasound image UI with respect to theelements 311. The receivingsection 330 may be configured to cumulatively assign the sampling data corresponding to the selected pixels as the pixel data. - For example, the receiving
section 330 may be configured to set a curve (hereinafter referred to as “reception beam-forming curve”) CV6,3 for selecting pixels, which the sampling data S6,3 are used as the pixel data thereof, during the reception beam-forming based on the positions of theelements 311 and the orientation of the respective pixels of the ultrasound image UI with respect to theelements 311, as shown inFIG. 9 . The receivingsection 330 may be further configured to detect the pixels P3,1, P3,2, P4,2, P4,3, P4,4, P4,5, P4,6, P4,7, P4,8, P4,9, . . . P3,N corresponding to the reception beam-forming curve CV6,3 from the pixels Pa,b of the ultrasound image UI, wherein 1≦a≦M, 1≦b≦N. That is, the receivingsection 330 may select the pixels P3,1, P3,2, P4,2, P4,3, P4,4, P4,5, P4,6, P4,7, P4,8, P4,9, . . . P3,N on which the reception beam-forming curve CV6,3 passes among the pixels Po of the ultrasound image UI. The receivingsection 330 may be also configured to assign the sampling data S6,3 to the selected pixels P3,1, P3,2, P4,2, P4,3, P4,4, P4,5, P4,6, P4,7, P4,8, P4,9, . . . P3,N, as shown inFIG. 10 . - Thereafter, the receiving
section 330 may be configured to set a reception beam-forming curve CV6,4 for selecting pixels, which the sampling data S6,4 are used as the pixel data thereof, during the reception beam-forming based on the positions of theelements 311 and the orientation of the respective pixels of the ultrasound image UI with respect to theelements 311, as shown inFIG. 11 . The receivingsection 330 may be further configured to detect the pixels P2,1, P3,1, P3,2, P4,2, P4,3, P4,4, P5,4, P5,5, P5,6, P5,7, P5,8, P4,9, P5,9, . . . P4,N, P3,N corresponding to the reception beam-forming curve CV6,4 from the pixels Po of the ultrasound image UI. That is, the receivingsection 330 may select the pixels P2,1, P3,1, P3,2, P4,2, P4,3, P4,4, P5,4, P5,5, P5,6, P5,7, P5,8, P4,9, P5,9, . . . P4,N, P3,N on which the reception beam-forming curve CV6,4 passes among the pixels Pa,b of the ultrasound image UI. The receivingsection 330 may be additionally configured to assign the sampling data S6,4 to the selected pixels P2,1, P3,1, P3,2, P4,2, P4,3, P4,4, P5,4, P5,5, P5,6, P5,7, P5,8, P4,9, P5,9, . . . P4,N, P3,N, as shown inFIG. 12 . In this way, the respective sampling data, which are used as the pixel data, may be cumulatively assigned to the pixels as the pixel data. - The receiving
section 330 may be configured to perform the reception beam-forming (i.e., summing) upon the sampling data, which are cumulatively assigned to the respective pixels Pat, of the ultrasound image UI to form the reception-focused data. - In another embodiment, the receiving
section 330 may be configured to perform the analog-digital conversion upon the reception signals provided through the plurality of cannels CHk from theultrasound probe 310 to form the sampling data Si,j, as shown inFIG. 8 . The sampling data Si,j may be stored in thestorage unit 140. The receivingsection 330 may be further configured to detect pixels corresponding to the sampling data based on the positions of theelements 311 and the positions (orientation) of the pixels of the ultrasound image UI with respect to theelements 311. That is, the receivingsection 330 may select the pixels, which the respective sampling data are used as the pixel data thereof, during the reception beam-forming based on the positions of theelements 311 and the orientation of the respective pixels of the ultrasound image UI with respect to theelements 311. The receivingsection 330 may be configured to cumulatively assign the sampling data corresponding to the selected pixels as the pixel data. The receivingsection 330 may be further configured to determine pixels existing in the same column among the selected pixels. The receivingsection 330 may be also configured to set weights corresponding to the respective determined pixels. The receivingsection 330 may be additionally configured to apply the weights to the sampling data of the respective pixels. - For example, the receiving
section 330 may be configured to set the reception beam-forming curve CV6,3 for selecting pixels, which the sampling data S6,3 are used as the pixel data thereof, during the reception beam-forming based on the positions of theelements 311 and the orientation of the respective pixels of the ultrasound image UI with respect to theelements 311, as shown inFIG. 9 . The receivingsection 330 may be further configured to detect the pixels P3,1, P3,2, P4,2, P4,3, P4,4, P4,5, P4,6, P4,7, P4,8, P4,9, . . . P3,N corresponding to the reception beam-forming curve CV6,3 from the pixels Pa,b of the ultrasound image UI, wherein 1≦a≦M, 1≦b≦N. That is, the receivingsection 330 may select the pixels P3,1, P3,2 P4,2, P4,3, P4,4, P4,5, P4,6, P4,7, P4,8, P4,9, . . . P3,N on which the reception beam-forming curve CV6,3 passes among the pixels Pa,b of the ultrasound image UI. The receivingsection 330 may be also configured to assign the sampling data S6,3 to the selected pixels P3,1, P3,2, P4,2, P4,3, P4,4, P4,5, P4,6, P4,7, P4,8, P4,9, . . . P3,N as shown inFIG. 10 . The receivingsection 330 may be further configured to determine pixels P3,2 and P4,2, which exist in the same column among the selected pixels P3,1, P3,2, P4,2, P4,3, P4,4, R1,5, P4,6, P4,7, P4,8, P4,9, . . . P3,N. The receivingsection 330 may be further configured to calculate a distance W1 from a center of the determined pixel P3,2 to the reception beam-forming curve CV6,3 and a distance W2 from a center of the determined pixel P4,2 to the reception beam-forming curve CV6,3, as shown inFIG. 13 . The receivingsection 330 may be additionally configured to set a first weight α1 corresponding to the pixel P3,2 based on the distance W1 and a second weight α2 corresponding to the pixel P4,2 based on the distance W2. The first weight α1 and the second weight α may be set to be in proportional to or in inverse proportional to the calculated distances. The receivingsection 330 may be further configured to apply the first weight α1 to the sampling data S6,3 assigned to the pixel P3,2 and to apply the second weight α2 to the sampling data S6,3 assigned to the pixel P42. The receivingsection 330 may be configured to perform the above process upon the remaining sampling data. - The receiving
section 330 may be configured to perform the reception beam-forming upon the sampling data, which are cumulatively assigned to the respective pixels Pa,b of the ultrasound image UI to form the reception-focused data. - In yet another embodiment, the receiving
section 330 may be configured to perform the analog-digital conversion upon the reception signals provided through the plurality of channels CHk from theultrasound probe 310 to form the sampling data Si,j, as shown inFIG. 8 . The sampling data may be stored in thestorage unit 140. The receivingsection 330 may be further configured to set a sampling data set based on the sampling data Si,j. That is, the receivingsection 330 may set the sampling data set for selecting pixels, which the sampling data are used as the pixel data thereof, during the reception beam-forming. - For example, the receiving
section 330 may be configured to set the sampling data S1,1, S14, . . . S1,t, S2,1, S2,4, . . . Sp,t as the sampling data set (denoted by a box) for selecting the pixels, which the sampling data are used as the pixel data thereof, during the reception beam-forming, as shown inFIG. 14 . - The receiving
section 330 may be further configured to detect the pixels corresponding to the respective sampling data of the sampling data set based on the positions of theelements 311 and the positions (orientation) of the respective pixels of the ultrasound image UI with respect to theelements 311. That is, the receivingsection 330 may select the pixels, which the respective sampling data of the sampling data set are used as the pixel data thereof, during the reception beam-forming based on the positions of theelements 311 and the orientation of the respective pixels of the ultrasound image UI with respect to theelements 311. The receivingsection 330 may be further configured to cumulatively assign the sampling data to the selected pixels in the same manlier as the above embodiments. The receivingsection 330 may be also configured to perform the reception beam-forming upon the sampling data, which are cumulatively assigned to the respective pixels of the ultrasound image UI to form the reception-focused data. - In yet another embodiment, the receiving
section 330 may be configured to perform down-sampling upon the reception signals provided through the plurality of channels CHk from theultrasound probe 310 to form down-sampled data. As described above, the receivingsection 330 may be further configured to detect the pixels corresponding to the respective sampling data based on the positions of theelements 311 and the positions (orientation) of the respective pixels of the ultrasound image UI with respect to theelements 311. That is, the receivingsection 330 may select the pixels, which the respective sampling data are used as the pixel data thereof, during the reception beam-forming based on the positions of theelements 311 and the orientation of the pixels of the ultrasound image UI with respect to theelements 311. The receivingsection 330 may be further configured to cumulatively assign the respective sampling data to the selected pixels in the same manner as the above embodiments. The receivingsection 330 may be further configured to perform the reception beam-forming upon the sampling data, which are cumulatively assigned to the respective pixels of the ultrasound image UI to form the reception-focused data. - However, it should be noted herein that the reception beam-forming may not be limited thereto.
- Referring back to
FIG. 3 , the ultrasounddata acquiring unit 120 may further include an ultrasounddata forming section 340. The ultrasounddata forming section 340 may be configured to form the ultrasound data corresponding to the ultrasound image based on the reception-focused data provided from the receivingsection 330. The ultrasounddata forming section 340 may be further configured to perform a signal process (e.g., gain control, etc) upon the reception-focused data. - In one embodiment, the ultrasound
data forming section 340 may be configured to form ultrasound data (hereinafter referred to as “brightness mode ultrasound data”) corresponding to the brightness mode image based on the brightness mode reception-focused data provided from the receivingsection 330. The brightness mode ultrasound data may include radio frequency data. - The ultrasound
data forming section 340 may be further configured to form ultrasound data (hereinafter referred to as “Doppler mode ultrasound data”) corresponding to the first region of interest ROI1 based on the Doppler mode reception-focused data provided from the receivingsection 330. The Doppler mode ultrasound data may include in-phase/quadrature data. However, it should be noted herein that the Doppler mode ultrasound data may not be limited thereto. - For example, the ultrasound
data forming section 340 may form first Doppler mode ultrasound data based on the first Doppler mode reception-focused data provided from the receivingsection 330. The ultrasounddata forming section 340 may further form second Doppler mode ultrasound data based on the second Doppler mode reception-focused data provided from the receivingsection 330. - Referring back to
FIG. 1 , theultrasound system 100 may further include aprocessing unit 130 in communication with the user input unit HO and the ultrasounddata acquiring unit 120. Theprocessing unit 130 may include a central processing unit, a microprocessor, a graphic processing unit and the like. -
FIG. 15 is a flow chart showing a process of providing the user interface. Theprocessing unit 130 may be configured to form the brightness mode image BI based on the brightness mode ultrasound data provided from the ultrasounddata acquiring unit 120, at step S1502 inFIG. 15 . The brightness mode image BI may be displayed on adisplay unit 150. - The
processing unit 130 may be configured to set the first region of interest ROI1 on the brightness mode image BI based on the input information (i.e., first input information) provided from theuser input unit 110, at step S1504 inFIG. 15 . Thus, the ultrasounddata acquiring unit 120 may be configured to transmit the ultrasound signals to the living body and receive the ultrasound echo signals from the living body to acquire the Doppler mode ultrasound data corresponding to the first region of interest ROI1. - The
processing unit 130 may be configured to form vector information based on the Doppler mode ultrasound data provided from the ultrasounddata acquiring unit 120, at step S1506 inFIG. 15 . That is, theprocessing unit 130 may form the vector information corresponding to the motion (i.e., velocity and direction) of the target object based on the Doppler mode ultrasound data. - Generally, when the transmission direction of the ultrasound signals is equal to the reception direction of the ultrasound echo signals and a Doppler angle is 0, the following relationship may be established:
-
- In
equation 1, X represents a reflector velocity (i.e., velocity of target object), C0 represents a sound speed in the living body, fd represents a Doppler shift frequency, and f0 represents an ultrasound frequency. - The Doppler shift frequency fd may be calculated by the difference between a frequency of the ultrasound signals (i.e., transmission beam) and a frequency of the ultrasound echo signals (i.e., reception beam). Also, the velocity component X cos θ projected to the transmission direction may be calculated by
equation 1. - When the transmission direction of the ultrasound signals (i.e., transmission beam) is different from the reception direction of the ultrasound echo signals (i.e., reception beam), the following relationship may be established:
-
- In
equation 2, θT represents an angle between the ultrasound signals (i.e., transmission beam) and the blood flow, and θR represents an angle between the ultrasound echo signals (i.e., reception beam) and the blood flow. -
FIG. 16 is a schematic diagram showing an example of the transmission directions, the reception directions, the vector information and an over-determined problem. Referring toFIG. 16 , when the ultrasound signals (i.e., transmission beam) are transmitted in a first direction D1 and the ultrasound echo signals (i.e., reception beam) are received in the first direction D1, the following relationship may be established: -
{right arrow over (α1)}{right arrow over (X)}=α 11 x 1+α12 x 2 =y 1 =X cos θ (3) - In
equation 3, {right arrow over (α)}==(α11α12) represents a unit vector of the first direction D1, {right arrow over (X)}=(x1, x2) represents variables, and y1 is calculated byequation 1. - When the ultrasound signals (i.e., transmission beam) are transmitted in a second direction D2 and the ultrasound echo signals (i.e., reception beam) are received in a third direction D3, the following relationship may be established:
-
(α21+α31)x 1+(α22+α32)x 2=(y 2 +y 3)X cos θ2 +X cos θ 3 (4) -
Equations equations equations -
α11 x 1+α12 x 2+α13 x 3 =y (5) - In the case of the two-dimensional environment (i.e., two-dimensional vector), at least two equations are required to calculate the variables x1 and x2. For example, when the ultrasound signals (i.e., transmission beam) are transmitted in the third direction D3 and the ultrasound echo signals (i.e., reception beam) are received in the second direction D2 and a fourth direction D4 as shown in
FIG. 16 , the following equations may be established: -
(α31+α21)x 1+(α32+α22)x 2=(y 3 +y 2) -
(α31+α41)x 1+(α32+α42)x 2=(y 3 +y 4) (6) - The vector {right arrow over (X)}=x2) may be calculated by the equations of
equation 6. - When the reception beam-forming is performed in at least two angles (i.e., at least two reception directions), at least two equations may be obtained and represented as the over-determined problem, as shown in
FIG. 16 . The over-determined problem is well known in the art. Thus, it has not been described in detail so as not to unnecessarily obscure the present disclosure. The over-determined problem may be solved by a pseudo inverse method, a weighted least square method and the like based on noise characteristics added to the Doppler shift frequency. That is, M×N equations may be obtained by M transmission directions and the reception beam-forming of N reception directions at every transmission. - The
processing unit 130 may be configured to form a vector Doppler image VDI as shown inFIG. 17 based on the vector information, at step S1508 inFIG. 15 . The methods of forming the vector Doppler image VDI are well known in the art. Thus, they have not been described in detail so as not to unnecessarily obscure the present disclosure. - Optionally, the
processing unit 130 may be configured to compound the brightness mode image BI and the vector Doppler image VDI to form a compound image. - The
processing unit 130 may be configured to form the user interface GUI as shown inFIG. 17 based on the vector information, at step S1510 inFIG. 15 . The user interface GUI may be an interface mapping the vector information corresponding to the motion (i.e., velocity and direction) of the target object to colors. That is, the user interface GUI may be an interface for performing a filtering process upon the vector Doppler image VDI. The user interface GUI may be displayed on thedisplay unit 150. - The
processing unit 130 may be configured to set a second region of interest on the user interface GUI based on the input information (i.e., second input information), at step S1512 inFIG. 15 . - As one example, when the second input information for setting a region RG on the user interface GUI in touch type as shown in
FIGS. 18 and 19 is provided from theuser input unit 110, theprocessing unit 130 may be configured to set the second region of interest ROI2 including the region RG corresponding to the second input information with respect to a center of the user interface GUI. - As another example, the second input information for setting two regions RG1, RG2 on the user interface GUI in the touch type as shown in
FIG. 20 is provided from theuser input unit 110, and theprocessing unit 130 may be configured to set the second region of interest ROI2 including the two regions RG1, RG2 corresponding to the second input information based on the center of the user interface GUI. - The
processing unit 130 may be configured to perform a filtering process upon the vector Doppler image VDI based on the second region of interest ROI2, at step S1514 inFIG. 15 . In one embodiment, theprocessing unit 130 may be configured to perform the filtering process for representing only the vector information (i.e., velocity and direction of the target object) corresponding to the second region of interest ROI2 upon the vector Doppler image VDI. That is, theprocessing unit 130 may perform the filtering process for not representing the vector information not corresponding to the second region of interest ROI2 upon the vector Doppler image VDI. - In the above embodiment, the filtering process for representing only the vector information corresponding to the second region of interest ROI2 is performed upon the vector Doppler image VDI. However, it should be noted herein that the filtering process may not be limited thereto.
- Referring back to
FIG. 1 , theultrasound system 100 may further include thestorage unit 140. Thestorage unit 140 may store the ultrasound data (i.e., brightness mode ultrasound data and Doppler mode ultrasound data) acquired by the ultrasounddata acquiring unit 120. Thestorage unit 140 may additionally store the vector information formed by theprocessing unit 130. - The
ultrasound system 100 may further include thedisplay unit 150. Thedisplay unit 150 may be configured to display the brightness mode image BI formed by theprocessing unit 130. Thedisplay unit 150 may be also configured to display the vector Doppler image VDI formed by theprocessing unit 130. Thedisplay unit 150 may be additionally configured to display the user interface GUI formed by theprocessing unit 130. - Although embodiments have been described with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this disclosure. More particularly, numerous variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, alternative uses will also be apparent to those skilled in the art.
Claims (24)
1. An ultrasound system, comprising:
a processing unit configured to form vector information of a target object based on ultrasound data corresponding to the target object, the processing unit being further configured to form a user interface for performing a filtering process upon a vector Doppler image based on the vector information.
2. The ultrasound system of claim 1 , wherein the processing unit is configured to form the vector information corresponding to a velocity and a direction of the target object in consideration of at least one transmission direction and at least one reception direction corresponding to the at least one transmission direction based on the ultrasound data.
3. The ultrasound system of claim 1 , wherein the user interface includes an interface mapping the vector information to colors.
4. The ultrasound system of claim 1 , further comprising:
a user input unit configured to receive input information for setting at least one region on the user interface from a user.
5. The ultrasound system of claim 4 , wherein the processing unit is configured to:
set a region of interest including the at least one region with respect to a center of the user interface; and
perform the filtering process upon the vector Doppler image based on vector information corresponding to the region of interest.
6. The ultrasound system of claim 5 , wherein the processing unit is configured to perform the filtering process for representing vector information corresponding to the region of interest upon the vector Doppler image.
7. The ultrasound system of claim 1 , further comprising:
an ultrasound data acquiring unit configured to transmit ultrasound signals to a living body including the target object in at least one transmission direction, the ultrasound data acquiring unit being further configured to receive ultrasound echo signals from the living body in at least one reception direction to acquire the ultrasound data corresponding to the at least one reception direction.
8. The ultrasound system of claim 7 , wherein the ultrasound data acquiring unit is configured to:
transmit the ultrasound signals to the living body in a first transmission direction; and
receive the ultrasound echo signals from the living body in a first reception direction and a second reception direction to acquire the ultrasound data corresponding to the respective first and second reception directions.
9. The ultrasound system of claim 7 , wherein the ultrasound data acquiring unit is configured to:
transmit the ultrasound signals to the living body in a first transmission direction and a second transmission direction; and
receive the ultrasound echo signals from the living body in a first reception direction to acquire the ultrasound data corresponding to the first reception direction of the respective first and second transmission directions.
10. The ultrasound system of claim 7 , wherein the ultrasound data acquiring unit is configured to:
transmit the ultrasound signals to the living body in a first transmission direction and a second transmission direction; and
receive the ultrasound echo signals from the living body in a first reception direction and a second reception direction to acquire the ultrasound data corresponding to the respective first and second reception directions.
11. The ultrasound system of claim 7 , wherein the ultrasound data acquiring unit is configured to transmit the ultrasound signals in an interleaved transmission scheme.
12. The ultrasound system of claim 7 , wherein the ultrasound signals include plane wave signals or focused signals.
13. A method of providing a user interface, comprising:
a) forming vector information of a target object based on ultrasound data corresponding to the target object; and
b) forming a user interface for performing a filtering process upon a vector Doppler image based on the vector information.
14. The method of claim 13 , wherein the step a) comprises:
forming the vector information corresponding to a velocity and a direction of the target object in consideration of at least one transmission direction and at least one reception direction corresponding to the at least one transmission direction based on the ultrasound data.
15. The method of claim 14 , wherein the user interface includes an interface mapping the vector information to colors.
16. The method of claim 14 , further comprising:
c) receiving input information for setting at least one region on the user interface from a user.
17. The method of claim 16 , further comprising:
setting a region of interest including the at least one region with respect to a center of the user interface; and
performing the filtering process upon the vector Doppler image based on vector information corresponding to the region of interest.
18. The method of claim 17 , wherein the step of performing the filtering process comprises:
performing the filtering process for representing vector information corresponding to the region of interest upon the vector Doppler image.
19. The method of claim 13 , further comprising:
transmitting ultrasound signals to a living body including the target object in at least one transmission direction and receiving ultrasound echo signals from the living body in at least one reception direction to acquire the ultrasound data corresponding to the at least one reception direction, prior to performing the step a).
20. The method of claim 19 , wherein the step of acquiring the ultrasound data comprises:
transmitting the ultrasound signals to the living body in a first transmission direction; and
receiving the ultrasound echo signals from the living body in a first reception direction and a second reception direction to acquire the ultrasound data corresponding to the respective first and second reception directions.
21. The method of claim 19 , wherein the step of acquiring the ultrasound data comprises:
transmitting the ultrasound signals to the living body in a first transmission direction and a second transmission direction; and
receiving the ultrasound echo signals from the living body in a first reception direction to acquire the ultrasound data corresponding to the first reception direction of the respective first and second transmission directions.
22. The method of claim 19 , wherein the step of acquiring the ultrasound data comprises:
transmitting the ultrasound signals to the living body in a first transmission direction and a second transmission direction; and
receiving the ultrasound echo signals from the living body in a first reception direction and a second reception direction to acquire the ultrasound data corresponding to the respective first and second reception directions.
23. The method of claim 19 , wherein the ultrasound signals are transmitted in an interleaved transmission scheme.
24. The method of claim 19 , wherein the ultrasound signals include plane wave signals or focused signals.
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Also Published As
Publication number | Publication date |
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EP2609868B1 (en) | 2020-03-18 |
KR101406807B1 (en) | 2014-06-12 |
KR20130076064A (en) | 2013-07-08 |
US20170188998A1 (en) | 2017-07-06 |
EP2609868A1 (en) | 2013-07-03 |
US11406362B2 (en) | 2022-08-09 |
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