KR101649272B1 - Ultrasonic diagnosis apparatus, method for photographing ultrasonic image, probe, and computer-readable recording medium - Google Patents
Ultrasonic diagnosis apparatus, method for photographing ultrasonic image, probe, and computer-readable recording medium Download PDFInfo
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- KR101649272B1 KR101649272B1 KR1020140127687A KR20140127687A KR101649272B1 KR 101649272 B1 KR101649272 B1 KR 101649272B1 KR 1020140127687 A KR1020140127687 A KR 1020140127687A KR 20140127687 A KR20140127687 A KR 20140127687A KR 101649272 B1 KR101649272 B1 KR 101649272B1
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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
- A61B8/44—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device
- A61B8/4483—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device characterised by features of the ultrasound transducer
- A61B8/4488—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device characterised by features of the ultrasound transducer the transducer being a phased array
-
- 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
- A61B8/485—Diagnostic techniques involving measuring strain or elastic properties
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/56—Details of data transmission or power supply
- A61B8/565—Details of data transmission or power supply involving data transmission via a network
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/0207—Driving circuits
- B06B1/0215—Driving circuits for generating pulses, e.g. bursts of oscillations, envelopes
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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
- G01S15/8909—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques using a static transducer configuration
- G01S15/8915—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques using a static transducer configuration using a transducer array
-
- 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
- G01S7/52019—Details of transmitters
- G01S7/5202—Details of transmitters for pulse systems
- G01S7/52022—Details of transmitters for pulse systems using a sequence of pulses, at least one pulse manipulating the transmissivity or reflexivity of the medium
-
- 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
- G01S7/52023—Details of receivers
- G01S7/52036—Details of receivers using analysis of echo signal for target characterisation
- G01S7/52042—Details of receivers using analysis of echo signal for target characterisation determining elastic properties of the propagation medium or of the reflective target
-
- 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
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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
- G10K11/345—Circuits therefor using energy switching from one active element to another
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/44—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device
- A61B8/4405—Device being mounted on a trolley
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/44—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device
- A61B8/4444—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device related to the probe
- A61B8/4472—Wireless probes
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B2201/00—Indexing scheme associated with B06B1/0207 for details covered by B06B1/0207 but not provided for in any of its subgroups
- B06B2201/70—Specific application
- B06B2201/76—Medical, dental
Abstract
According to an aspect of an embodiment of the present invention, there is provided a method of imaging an ultrasound image using an ultrasound diagnostic apparatus including a transducer array including n transducers, the method comprising: irradiating an ultrasound wave to a target object, ; Selecting a first activation range and a second activation range that are ranges of transducers activated among n transducers of the transducer array, depending on the object or measurement result; Irradiating the object with ultrasound using a transducer belonging to each of the first activation range and the second activation range and detecting an echo image from the target object; And measuring a propagation velocity of a transverse wave generated from the object from the echo image.
Description
Embodiments of the present invention relate to an ultrasound imaging method, an ultrasound diagnostic apparatus, and a computer-readable recording medium storing a computer program for performing the ultrasound imaging method.
The ultrasound diagnostic apparatus irradiates an ultrasound signal generated from a transducer of a probe to a target object, receives information of an echo signal reflected from the target object, and obtains an image of a site inside the target object. In particular, the ultrasonic diagnostic apparatus is used for medical purposes such as observation of an object, foreign object detection, and injury measurement. Such an ultrasonic diagnostic apparatus is more stable than the diagnostic apparatus using X-ray, is capable of displaying an image in real time, and is safe because there is no radiation exposure, so that it is widely used with other diagnostic apparatuses.
According to an aspect of an embodiment of the present invention,
(n is a natural number) transducers, wherein transducers belonging to the first and second activation ranges, which are the ranges of the transducers activated among the n transducers, A probe for detecting an echo signal from the object; And
Wherein the control unit selects the first activation range and the second activation range in accordance with the object or the measurement result, generates an echo image from the echo signal, and generates a target body change speed that is a speed at which the change of the object moves from the echo image An ultrasound diagnostic apparatus including a control unit for measuring an ultrasound echo signal is provided.
Wherein the probe irradiates an ultrasonic wave using a transducer belonging to the first activation range, detects an echo signal from the object, irradiates ultrasonic waves using a transducer belonging to the second activation range after a predetermined time interval, The echo signal is detected from the object, and the predetermined time interval may be determined according to the object or the measurement result.
Wherein the probe irradiates ultrasonic waves using a transducer belonging to the first activation range, detects an echo signal from the object, and detects the second activation range of the position shifted from the first activation range in accordance with the first movement speed And an echo signal is detected from the object, and the first moving speed may be determined according to the object or the measurement result.
The probe may detect ultrasonic waves of a plane wave from the transducers belonging to each of the first activation range and the second activation range and detect an echo signal from a transducer belonging to the activation range.
Wherein the probe moves from the transducers belonging to each of the first activation range and the second activation range to the focus beam while moving the irradiation position of the focus beam within each of the first activation range and the second activation range, It is possible to detect an echo signal corresponding to the irradiation position of the focus beam.
The first moving speed may be determined according to at least one of an inspection position and a medical record of the object.
Wherein the controller corrects the first moving speed when the measured moving speed of the object changes is greater than or equal to the first moving speed and the reference value and the probe moves the moving object at a position shifted according to the corrected first moving speed An ultrasonic wave is irradiated using a transducer belonging to the selected activation range and an echo signal can be detected from the object.
Wherein the control unit calculates a mutation image using two sequentially captured echo images, detects a change position of the object from the mutation image, and calculates the object change travel speed using the change position of the object .
Wherein the probe further comprises m multiplexers for coupling the selected transducer to a signal transmission channel connected to the controller, wherein a transducer belonging to each of the first activation range and the second activation range is coupled to the m multiplexers Lt; / RTI >
The controller may measure the moving speed of the object by using the probe, and may determine the first moving speed according to the measurement result.
The probe may generate a transverse wave at the target by irradiating ultrasonic waves to the target, the change of the target may be a transverse wave generated at the target, and the target change speed may be a progress speed of the transverse wave.
The probe may generate a transverse wave by irradiating ultrasonic waves of a focus beam to the object.
The probe may generate a transverse wave at a plurality of points of the object.
Wherein the controller selects the first activation range located at one end of the transducer array and selects the second activation range located at the other end of the transducer array, And an activation range of a position shifted in accordance with a first movement speed toward the center of the transducer array alternately from the second activation range to detect an echo signal from the object, May be determined according to the object or the measurement result.
According to another aspect of the present invention, there is provided a method of photographing an ultrasound image using an ultrasonic diagnostic apparatus including a transducer array including n (n is a natural number) transducers, Selecting a first activation range and a second activation range that are ranges of activated transducers of the n transducers of the transducer array; Irradiating the object with ultrasonic waves using a transducer belonging to each of the first activation range and the second activation range and detecting an echo signal from the object; And measuring a change speed of the object, which is a rate at which the change of the object is shifted from the echo signal.
Wherein the step of selecting the first activation range and the second activation range further comprises the step of determining a predetermined time interval according to the object or the measurement result, wherein the step of detecting the echo signal comprises: Irradiating ultrasonic waves using a transducer belonging thereto and detecting an echo signal from the object; And irradiating ultrasonic waves using the transducers belonging to the second activation range after the predetermined time interval and detecting an echo signal from the object.
Wherein the step of selecting the first activation range and the second activation range further includes the step of determining a first movement speed in accordance with the object or the measurement result, Irradiating an ultrasonic wave using a transducer belonging to the ultrasonic probe and detecting an echo signal from the object; And detecting the echo signal from the object by irradiating the ultrasonic wave using the second activation range of the position shifted from the first activation range according to the first movement speed.
The step of detecting the echo signal may include irradiating ultrasonic waves of a plane wave to the object from a transducer belonging to each of the first activation range and the second activation range; And detecting echo signals from m transducers belonging to the first activation range and the second activation range, respectively.
Wherein the step of detecting the echo signal includes the steps of moving the irradiating position of the focus beam within each of the first activation range and the second activation range while moving the irradiation position of the focus beam from the transducers belonging to the first activation range and the second activation range Irradiating the object with ultrasound of a focus beam; And detecting an echo signal corresponding to an irradiation position of the focus beam.
The first moving speed may be determined according to at least one of an inspection position and a medical record of the object.
The ultrasonic imaging method further comprises: correcting the first moving speed when the measured moving speed of the object varies from the first moving speed by a reference value or more; Detecting an echo signal from the object by irradiating ultrasonic waves to the object using a transducer belonging to an activated range selected at a position shifted according to the corrected first moving speed; And measuring the moving speed of the object from the echo signal detected based on the corrected first moving speed.
Wherein the step of measuring the moving speed of the object changes comprises: calculating a mutation image using two echo images sequentially photographed; Detecting a change position of the object from the variation image; And calculating the moving speed of the target body using the detected position of change of the target body.
Wherein the ultrasonic diagnostic apparatus includes m multiplexers for connecting a selected transducer to a signal transmission channel connected to the controller, wherein the transducers belonging to each of the first activation range and the second activation range include m It may be a transducer selected by a multiplexer.
The step of determining the first moving speed may include measuring the moving speed of the object by using the probe and determining the first moving speed in accordance with the measurement result.
Wherein the ultrasonic imaging method further comprises the step of generating a transverse wave at the object by irradiating ultrasonic waves to the object, wherein the change of the object is a transverse wave generated at the object, Speed.
The step of generating the transverse waves may generate a transverse wave by irradiating the object with an ultrasonic wave of a focus beam.
The generating of the transverse waves may include generating transverse waves at a plurality of points of the object.
Wherein the selecting of the first activation range and the second activation range comprises selecting the first activation range located at one end of the transducer array and selecting the second activation range located at the other end of the transducer array, Wherein the step of detecting the echo signal comprises the step of detecting the activation of the position shifted in accordance with the first movement speed toward the center of the transducer array alternately from the first activation range and the second activation range, And detecting an echo signal from the object, wherein the first moving speed can be determined according to the object or the measurement result.
According to another aspect of an embodiment of the present invention,
a transducer array including n (n is a natural number) transducers;
A first activation range and a second activation range that are the ranges of the transducers to be activated among the n transducers are selected according to the object or the measurement result and the transducers belonging to the first activation range and the second activation range are used A control unit for irradiating ultrasonic waves and detecting an echo signal from the object; And
And a communication unit for transmitting the echo signal to another electronic device.
According to another aspect of an embodiment of the present invention, there is provided a computer program for performing a method of imaging an ultrasound image using an ultrasound diagnostic apparatus including a transducer array including n transducers read out and executed by a processor A computer-readable recording medium storing program codes, the method comprising:
Selecting a first activation range and a second activation range that are ranges of transducers activated among n transducers of the transducer array according to the object or measurement result;
Irradiating the object with ultrasonic waves using a transducer belonging to each of the first activation range and the second activation range and detecting an echo signal from the object; And
And measuring a change speed of the object, which is a rate at which the change of the object is shifted from the echo signal.
The present invention may be readily understood by reference to the following detailed description and the accompanying drawings, in which reference numerals refer to structural elements.
1 is a block diagram showing the configuration of an ultrasonic
2 is a diagram illustrating the structure of an ultrasound
3 is a view showing a
4 is a diagram for explaining a process of detecting the progress of change of the object.
5 is a flowchart illustrating an ultrasound imaging method according to an embodiment of the present invention.
FIG. 6 is a view illustrating an active range moving according to an embodiment.
FIG. 7 is a view illustrating an active range moving according to an embodiment.
8 is a view for explaining a process of obtaining an echo image in each activation range AR according to an embodiment.
FIG. 9 is a diagram for explaining a process of obtaining an echo image in each activation range AR according to an embodiment.
10 is a flowchart illustrating an ultrasound imaging method according to an embodiment of the present invention.
11 is a view for explaining a process of generating a transverse wave in the
Fig. 12 is a view for explaining the progress of a transverse wave.
FIG. 13 is a view for explaining a process of photographing a variation of a tissue according to an embodiment.
FIG. 14 is a diagram for explaining a process of calculating a first movement speed when measuring a transverse wave propagation velocity according to an embodiment. FIG.
15 is a diagram for explaining a process of calculating a first moving speed according to an embodiment.
16 is a diagram for explaining a process of obtaining an echo image in each activation range AR according to an embodiment.
17 is a view for explaining a process of generating a transverse wave according to an embodiment.
18 is a view for explaining a transverse wave measuring process according to an embodiment.
19 is a view for explaining a transverse wave measuring process according to an embodiment.
20 is a flowchart illustrating an ultrasound imaging method according to an embodiment of the present invention.
21 is a flowchart illustrating an ultrasound imaging method according to an embodiment of the present invention.
22 is a diagram illustrating the structure of a
23 is a view for explaining a mode in which the active range is shifted in the
24 is a view for explaining a mode in which the active range is shifted in the
25 is a view showing a
While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments. Also, in certain cases, there may be a term selected arbitrarily by the applicant, in which case the meaning thereof will be described in detail in the description of the corresponding invention. Therefore, the term used in the present invention should be defined based on the meaning of the term, not on the name of a simple term, but on the entire contents of the present invention.
When an element is referred to as " including " an element throughout the specification, it is to be understood that the element may include other elements as well, without departing from the spirit or scope of the present invention. In addition, the term " "... Module " or the like means a unit for processing at least one function or operation, which may be implemented in hardware or software, or a combination of hardware and software.
The term "ultrasound image " in the entire specification refers to an image of an object obtained using ultrasound. In addition, the subject may comprise a person or an animal, or a part of a person or an animal. For example, the subject may include a liver, a heart, a uterus, a brain, a breast, an organ such as the abdomen, or a blood vessel. In addition, the object may comprise a phantom, and the phantom may refer to a material having a volume very close to the biological density and the effective atomic number.
Also, throughout the specification, the term "user" may be a medical professional such as a doctor, a nurse, a clinical pathologist, a medical imaging specialist, or the like, but is not limited thereto.
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
1 is a block diagram showing the configuration of an ultrasonic
The ultrasonic
The
The
The receiving
The
The B mode processing unit 312 extracts and processes the B mode component from the ultrasonic data. The
Similarly, the
The
The
The
The
The
The short
The
The
The
The
The
The
Some or all of the
2 is a diagram illustrating the structure of an ultrasound
The ultrasound
The ultrasonic
The wave propagating in the object includes, for example, a shear wave in the object tissue caused by the ultrasonic
The movement of a predetermined object within the object means that a part or foreign matter of the object moves within the object. For example, the movement of a predetermined object in the object means that a part of the tissue of the object moves through a digestive organs such as a blood vessel of a subject, a lymphatic duct, a duct, esophagus, stomach, small intestine, large intestine and the like. As another example, the movement of a predetermined object in the object means that the foreign object moves through the digestive organs such as a blood vessel, a lymphatic duct, a duct, an esophagus, a stomach, a small intestine,
The
The
First, the
Alternatively, the
The
Here, the fact that the transducer is activated means that an ultrasonic signal is transmitted using the transducer and an echo signal is detected. For example, only m transducers m (m is a natural number less than n), which are part of n transducers of the
The
The
The
The first moving speed is determined according to the object. The first moving speed is determined based on information previously stored according to the type of the object. For example, the object may be classified into different kinds according to the body tissues such as bone, muscle, liver, stomach, heart, brain, blood vessel, etc., and the
The first moving speed is determined according to the measurement result. The first moving speed is determined by first measuring the speed at which the change of the object moves under predetermined conditions, and determining the first moving speed according to the measurement result . When the speed is firstly measured, it is possible to measure the speed while fixing the position of the range of the activated transducer, or to measure the speed while moving the position of the range of the transducer activated at a predetermined speed, according to the embodiment Do.
When the first movement speed is determined, the
Further, the
Further, the
That is, the ultrasonic
3 is a view showing a
The
According to one embodiment of the present invention, the ultrasonic
According to an embodiment of the present invention, the transmitting end and the receiving end may be connected to the
According to another embodiment of the present invention, the ultrasonic
The ultrasonic
The time interval between the P1 section, the P2 section, and the P3 section may be determined by the minimum time required for ultrasonic transmission and echo signal detection. For example, the time interval between the P1 section, the P2 section, and the P3 section may be determined to be longer than the minimum time required for ultrasonic transmission and echo signal detection.
The interval between activated
4 is a diagram for explaining a process of detecting the progress of change of the object.
The ultrasonic
The
According to one embodiment, the variation of the
According to another embodiment, the shifted image can be calculated as a difference image of two consecutive echo images.
The variation calculated at every pixel is stored as a variation image. For example, the
5 is a flowchart illustrating an ultrasound imaging method according to an embodiment of the present invention.
The ultrasound imaging method according to the present embodiment can be performed by the ultrasound
The ultrasonic
In the case where the ultrasonic
On the other hand, the ultrasonic
Next, the ultrasonic
As an example, the ultrasonic
As another example, the ultrasonic
The ultrasonic
The ultrasonic
The ultrasonic
FIG. 6 is a view illustrating an active range moving according to an embodiment.
The
FIG. 7 is a view illustrating an active range moving according to an embodiment.
As shown in Fig. 7, the
6 and 7, the case where the activation range is selected at a position shifted in one direction according to one embodiment has been described as an example. However, the present disclosure is not so limited, and an activation range including various numbers of transducers at various positions of the transducer array may be selected depending on the object or measurement result.
6 and 7 show the case of selecting the activation ranges including the same number (i.e., 128) of transducers. However, according to another embodiment of the present disclosure, the ultrasonic
For example, the ultrasonic
Further, according to another embodiment of the present disclosure, the ultrasonic
For example, the ultrasonic
Further, according to another embodiment of the present disclosure, the ultrasonic
For example, the ultrasound
8 is a view for explaining a process of obtaining an echo image in each activation range AR according to an embodiment. FIG. 9 is a diagram for explaining a process of obtaining an echo image in each activation range AR according to an embodiment.
When irradiating the
According to one embodiment, when obtaining an echo image in each activation range (AR), a scanning method using an ultrasonic wave of a focus beam can be used. As shown in Fig. 8, according to the present embodiment, the
The position of the activation range can be moved in accordance with the first movement speed. The scan using the transducers belonging to the respective activation ranges proceeds to end within a predetermined time interval. For example, the scan using each activation range can be performed at the maximum speed supported by the ultrasonic
10 is a flowchart illustrating an ultrasound imaging method according to an embodiment of the present invention.
The ultrasonic
11 is a view for explaining a process of generating a transverse wave in the
As shown in Fig. 11, when an ultrasonic wave of a focus beam is irradiated to the
Elastography, which uses ultrasound to measure the stiffness of a tissue, can be used for early diagnosis of various cancers. This cancer diagnosis method is a method of discriminating cancer by measuring the hardness of the tissue in consideration of the fact that the cancer is harder than the normal tissue. The transversely elasticity technique of measuring the shear modulus by generating the transverse wave and measuring the propagation velocity of the transverse wave has the advantage of quantitatively indicating the strength of the tissue. The present embodiment provides an ultrasonic diagnostic apparatus and an ultrasonic imaging method capable of observing the propagation of a transverse wave at a high speed in a transversely elastic technique.
The ultrasonic
Further, the ultrasonic
Next, the ultrasonic
Next, the ultrasonic
FIG. 13 is a view for explaining a process of photographing a variation of a tissue according to an embodiment.
During the transition of the tissue, the
FIG. 14 is a diagram for explaining a process of calculating a first movement speed when measuring a transverse wave propagation velocity according to an embodiment. FIG.
According to an embodiment of the present invention, when the ultrasonic
Where E is the Young's modulus and ρ is the density.
15 is a diagram for explaining a process of calculating a first moving speed according to an embodiment.
According to one embodiment, the first moving speed may be determined based on the type of the object and the identification information of the object. When the patient is diagnosed using the ultrasound
16 is a diagram for explaining a process of obtaining an echo image in each activation range AR according to an embodiment.
According to one embodiment, ultrasonic waves of a plane wave are irradiated when an ultrasonic wave is irradiated to obtain an echo image in each activation range (AR). Since the propagation velocity of the transverse waves is very fast, the
17 is a view for explaining a process of generating a transverse wave according to an embodiment.
According to the present embodiment, the ultrasonic
In order to measure transverse waves generated at a plurality of points, the
The ultrasonic
The
18 is a view for explaining a transverse wave measuring process according to an embodiment.
According to this embodiment, a transverse wave is generated at a plurality of points, and the ultrasonic
According to this embodiment, it is possible to detect a transverse wave generated at a plurality of points and detect a transverse wave having a large amplitude in the entire image area at the early stage of the echo signal detection time. Therefore, the transverse wave detection speed becomes faster and the accuracy of transverse wave detection improves .
19 is a view for explaining a transverse wave measuring process according to an embodiment.
According to this embodiment, a transverse wave is generated at a plurality of points, and the echo image can be obtained while the active section AR is alternately advanced from both ends of the
According to another embodiment, when the difference between the measured transverse wave propagation velocity and the first transit velocity is equal to or greater than the reference value, the ultrasonic
20 is a flowchart illustrating an ultrasound imaging method according to an embodiment of the present invention.
First, the ultrasonic
Next, the ultrasonic
According to another embodiment of the present invention, the ultrasonic
21 is a flowchart illustrating an ultrasound imaging method according to an embodiment of the present invention.
First, the ultrasonic
Next, the ultrasonic
Next, the ultrasound
22 is a diagram illustrating the structure of a
According to one embodiment of the present disclosure, the
The two-
23 is a view for explaining a mode in which the active range is shifted in the
The ultrasonic
According to another embodiment, the activation range may be implemented in various forms such as concentric triangles, squares, pentagons, and the like.
24 is a view for explaining a mode in which the active range is shifted in the
The ultrasonic
25 is a view showing a
The
The
The
The
The short-range communication module means a module for short-range communication within a predetermined distance. The local area communication technology according to an exemplary embodiment of the present invention includes a wireless LAN, a Wi-Fi, a Bluetooth, a zigbee, a Wi-Fi Direct, an ultra wideband (UWB) IrDA, Infrared Data Association), BLE (Bluetooth Low Energy), NFC (Near Field Communication), and the like.
The wired communication module refers to a module for communication using an electrical signal or an optical signal. The wired communication technology according to an exemplary embodiment may include a pair cable, a coaxial cable, an optical fiber cable, an ethernet cable, have.
The mobile communication module transmits and receives radio signals to and from at least one of a base station, an external terminal, and a server on a mobile communication network. Here, the wireless signal may include various types of data depending on a voice call signal, a video call signal, or a text / multimedia message transmission / reception.
According to one embodiment, the
According to another embodiment, the
The ultrasound imaging method according to embodiments of the present invention may be implemented with a software module or an algorithm. Methods implemented with software modules or algorithms may be stored on a computer readable recording medium as computer readable codes or program instructions executable on the processor. Here, the computer-readable recording medium may be a magnetic recording medium such as a read-only memory (ROM), a random-access memory (RAM), a floppy disk, a hard disk, ), And a DVD (Digital Versatile Disc). The computer-readable recording medium may be distributed over networked computer systems so that computer readable code can be stored and executed in a distributed manner. The recording medium is readable by a computer, is stored in a memory, and can be executed in a processor. When the recording medium is connected to the ultrasound diagnostic apparatus 200, the ultrasound diagnostic apparatus 200 may be configured to perform the ultrasound imaging method according to the embodiments of the present invention.
It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Therefore, the disclosed methods should be considered in an illustrative rather than a restrictive sense. It is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.
Claims (30)
The first activation range and the second activation range are selected on the basis of a measurement result obtained by measuring a target change speed at which the target or the target changes at a moving speed in accordance with a predetermined condition, And a control unit for generating the echo image and measuring the moving speed of the object from the echo image.
Irradiating an ultrasonic wave using the transducer belonging to the first activation range, detecting an echo signal from the object, irradiating an ultrasonic wave using a transducer belonging to the second activation range after a predetermined time interval, Respectively,
Wherein the predetermined time interval is determined according to the object or the measurement result.
Wherein the probe irradiates ultrasonic waves using a transducer belonging to the first activation range, detects an echo signal from the object, and detects the second activation range of the position shifted from the first activation range in accordance with the first movement speed An echo signal is detected from the object,
Wherein the first moving speed is determined according to the object or the measurement result.
Irradiates ultrasonic waves of a plane wave from the transducers belonging to the first activation range and the second activation range to the object and detects an echo signal from the transducers belonging to the activation range.
And irradiating the focus beam to the object from the transducers belonging to the first activation range and the second activation range while moving the irradiation position of the focus beam within the first activation range and the second activation range, And detects an echo signal corresponding to an irradiation position of the focus beam.
Wherein the first moving speed is determined according to at least one of an examination position and a medical record of the object.
Wherein the control unit corrects the first moving speed when the measured moving speed of the object varies from the first moving speed by a reference value or more,
Wherein the probe irradiates an ultrasonic wave using a transducer belonging to an active range selected at a position shifted according to the corrected first movement speed and detects an echo signal from the object.
Wherein the control unit calculates a mutation image using two echo images sequentially photographed, detects a change position of the object from the mutation image, and calculates the object change travel speed using the change position of the object , Ultrasonic diagnostic apparatus.
The probe further includes m multiplexers for coupling the selected transducer to a signal transmission channel connected to the controller,
Wherein the transducers belonging to each of the first activation range and the second activation range are transducers selected by the m multiplexers.
Wherein the control unit measures the moving speed of the object by using the probe and determines the first moving speed in accordance with the measurement result.
Wherein the probe generates ultrasonic waves on the object to generate a transverse wave on the object,
Wherein the change of the object is a transverse wave generated in the object,
Wherein the object change moving speed is a traveling speed of the transverse wave.
Wherein the probe generates a transverse wave by irradiating ultrasonic waves of a focus beam to the object.
Wherein the probe generates a transverse wave at a plurality of points of the object.
Wherein the controller selects the first activation range located at one end of the transducer array and selects the second activation range located at the other end of the transducer array,
Wherein the probe irradiates an ultrasonic wave using an activation range of a position shifted from the first activation range and the second activation range in accordance with a first movement speed toward the center of the transducer array and outputs an echo signal Respectively,
Wherein the first moving speed is determined according to the object or the measurement result.
Which is a range of an active transducer among the n transducers of the transducer array, based on a measurement result of a subject or a change speed of a target which is a speed at which a change of the object moves, according to a predetermined condition, Selecting a range and a second activation range;
Irradiating the object with ultrasonic waves using a transducer belonging to each of the first activation range and the second activation range and detecting an echo signal from the object; And
And measuring the moving speed of the object from the echo signal.
Further comprising the step of determining a predetermined time interval according to the object or the measurement result,
Wherein the step of detecting the echo signal comprises:
Irradiating ultrasonic waves using a transducer belonging to the first activation range and detecting an echo signal from the object; And
And irradiating ultrasonic waves using the transducers belonging to the second activation range after the predetermined time interval, and detecting an echo signal from the object.
Further comprising the step of determining a first movement speed in accordance with the object or the measurement result,
The step of detecting the echo signal
Irradiating ultrasonic waves using a transducer belonging to the first activation range and detecting an echo signal from the object; And
And irradiating the ultrasonic wave using the second activation range at a position shifted from the first activation range according to the first movement speed, and detecting an echo signal from the object.
Wherein the step of detecting the echo signal comprises:
Irradiating ultrasonic waves of a plane wave to the object from a transducer belonging to each of the first activation range and the second activation range; And
Detecting echo signals from m transducers belonging to the first activation range and the second activation range, respectively.
Moving the irradiation position of the focus beam within each of the first activation range and the second activation range,
Irradiating an ultrasonic wave of a focus beam to the object from a transducer belonging to each of the first activation range and the second activation range; And
And detecting an echo signal corresponding to an irradiation position of the focus beam.
Wherein the first moving speed is determined according to at least one of an inspection position and a medical record of the object.
Correcting the first moving speed when the measured moving speed of the object is different from the first moving speed by at least a reference value;
Detecting an echo signal from the object by irradiating ultrasonic waves to the object using a transducer belonging to an activated range selected at a position shifted according to the corrected first moving speed; And
And measuring the moving speed of the object from the echo signal detected based on the corrected first moving speed.
Wherein the step of measuring the moving speed of the object comprises:
Calculating a mutation image using two echo images sequentially photographed;
Detecting a change position of the object from the variation image; And
And calculating the moving speed of the target body using the detected change position of the target body.
Wherein the ultrasonic diagnostic apparatus comprises m multiplexers for coupling the selected transducer to the signal transfer channel and wherein the transducers belonging to each of the first activation range and the second activation range are selected by the m multiplexers Ultrasonic imaging method, which is a transducer.
Wherein the determining the first movement speed comprises:
Measuring the moving speed of the object using the probe, and determining the first moving speed according to the measurement result.
Wherein the ultrasonic imaging method further comprises the step of generating a transverse wave at the object by irradiating ultrasonic waves to the object,
Wherein the change of the object is a transverse wave generated in the object,
Wherein the moving speed of the object change is a traveling speed of the transverse wave.
Wherein the step of generating the transverse waves generates a transverse wave by irradiating the object with an ultrasonic wave of a focus beam.
Wherein generating the transverse waves comprises generating transverse waves at a plurality of points of the object.
Wherein the step of selecting the first activation range and the second activation range comprises:
Selecting the first activation range located at one end of the transducer array and selecting the second activation range located at the other end of the transducer array,
Wherein the step of detecting the echo signal comprises:
Detecting an echo signal from the object by irradiating ultrasonic waves using an activation range of a position shifted from the first activation range and the second activation range in accordance with a first movement speed toward a center of the transducer array alternately Lt; / RTI >
Wherein the first moving speed is determined according to the object or the measurement result.
A first activation range which is a range of the transducers to be activated among the n transducers and a second activation range which is a range of activated transducers of the n transducers based on a measurement result obtained by measuring a target change speed at which the object, A control unit for selecting an activation range and irradiating ultrasound using the transducers belonging to the first activation range and the second activation range and detecting an echo signal from the target object; And
And a communication unit for transmitting the echo signal to another electronic device.
Which is a range of an active transducer among the n transducers of the transducer array, based on a measurement result of a subject or a change speed of a target which is a speed at which a change of the object moves, according to a predetermined condition, Selecting a range and a second activation range;
Irradiating the object with ultrasonic waves using a transducer belonging to each of the first activation range and the second activation range and detecting an echo signal from the object; And
And measuring the object change speed from the echo signal.
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US14/590,118 US10324065B2 (en) | 2014-01-06 | 2015-01-06 | Ultrasound diagnostic apparatus, ultrasound image capturing method, and computer-readable recording medium |
PCT/KR2015/000118 WO2015102474A1 (en) | 2014-01-06 | 2015-01-06 | Ultrasound diagnostic apparatus, ultrasound image capturing method, and computer-readable recording medium |
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