Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method and device for automatically optimizing Doppler imaging parameters

A Doppler imaging and automatic optimization technology, applied in measurement devices, blood flow measurement devices, re-radiation of sound waves, etc., can solve problems such as misjudgment, algorithm susceptible to noise interference, uncertain effect, etc., and achieves low complexity. , Occupy less resources, good stability

Active Publication Date: 2010-02-17
SHENZHEN MINDRAY BIO MEDICAL ELECTRONICS CO LTD
View PDF7 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The principle of the method described in this patent is simple, but the algorithm is susceptible to noise interference. For example, when there are speckle-like interference signals in the Doppler spectral line, it will cause misjudgment. situation, the algorithm cannot correctly determine whether an aliasing has occurred
[0010] In the patent document US2007016073[4], a template matching method is introduced to judge whether multiple aliasing occurs in the Doppler spectrogram. After having a large number of Doppler spectrogram templates, the The accuracy of the algorithm is high, but due to the diversity of Doppler spectrogram forms, a large number of Doppler spectrogram templates need to be collected. In addition, some special Doppler spectrograms that do not exist in the template library , the effect of template matching is not sure

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and device for automatically optimizing Doppler imaging parameters
  • Method and device for automatically optimizing Doppler imaging parameters
  • Method and device for automatically optimizing Doppler imaging parameters

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] In the present invention, a method for automatically optimizing Doppler imaging parameters is provided. now refer to image 3 The main flowchart of the method for automatically optimizing Doppler imaging parameters according to the present invention is shown to describe the present invention in detail.

[0024] The method for automatically optimizing Doppler imaging parameters according to the present invention starts at step 300 and ends at step 360 . In order to eliminate multiple aliasing as much as possible, first at step 305, the pulse repetition frequency is set to the maximum pulse repetition frequency value at the current detection depth, and the set pulse repetition frequency is provided to the ultrasonic transmitting unit. Assuming that d is the current detection depth, and c is the propagation speed of ultrasonic waves in the human body, then the maximum pulse repetition frequency at the current detection depth is defined as:

[0025] PRF ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a method and a device for automatically optimizing Doppler imaging parameters. The method comprises: an acquiring step used for acquiring at least two characteristic spectral lines under a predetermined pulse repetition frequency; a storage step used for storing the at least two characteristic spectral lines; and an optimizing step used for optimizing at least one of the Doppler imaging parameters based on the stored at least two characteristic spectral lines and a predetermined noise average power. In the predetermined time, the acquiring step acquires the at least twocharacteristic spectral lines by acquiring Doppler spectral lines under the predetermined pulse repetition frequency in real time and processing the acquired Doppler spectral lines in real time without storage. Compared with the prior art, the method and the device realize automatic optimization of the Doppler imaging parameters only by storing and processing the two characteristic spectral linesand the predetermined noise average power, thereby having the advantages of few occupied resource, low complexity and good stability.

Description

technical field [0001] The present invention relates to the field of ultrasound imaging, and more particularly, to a method and device for automatically optimizing Doppler imaging parameters for an ultrasound imaging system. Background technique [0002] Pulsed Wave Doppler (Pulsed Wave Doppler, PW) technology is widely used in the nondestructive detection and measurement of human blood flow. It can observe the blood flow characteristics of a specific area of ​​the human body, and obtain the blood flow velocity and distribution. [0003] figure 1 A typical Doppler imaging parameter optimization block diagram is shown. In PW measurement, the operator generally sets a sampling gate at a certain position in the patient's two-dimensional ultrasound image, and then transmits an ultrasonic signal to the scanning position where the sampling gate is located. The ultrasonic signal injected into the human body reaches the receiving transducer after being scattered by human cells. T...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): A61B8/06G01S7/52G01S15/89
CPCG01S15/8981A61B8/06G01S7/5205A61B8/488G01S15/8986
Inventor 张羽张官喜
Owner SHENZHEN MINDRAY BIO MEDICAL ELECTRONICS CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products