Imaging method and device based on plane wave

An imaging method and imaging device technology, applied in blood flow measurement devices, acoustic wave diagnosis, infrasonic wave diagnosis, etc., can solve the problem of not being able to quantitatively reflect blood flow information in a specific area, and achieve the effect of simplifying the operation process and improving efficiency

Active Publication Date: 2019-12-20
VINNO TECH (SUZHOU) CO LTD
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Embodiments of the present invention provide a plane wave-based imaging method and device to solve the technical problem in the prior art that plane wave coherent composite imaging cannot quantitatively reflect blood flow information in a specific area

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
  • Imaging method and device based on plane wave
  • Imaging method and device based on plane wave
  • Imaging method and device based on plane wave

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] figure 1 It is a schematic flow chart of the plane wave-based imaging method provided by Embodiment 1 of the present invention. This embodiment is applicable to the situation of reducing the power consumption of the beamformer. The method can be performed by a device for reducing the power consumption of the beamformer. The device can be It is implemented in a software / hardware manner, and can be integrated into ultrasonic imaging equipment, especially portable and hand-held ultrasonic imaging equipment.

[0046] see figure 1 , the method for reducing the power consumption of a beamformer, comprising:

[0047] S110, sequentially adjusting the deflection angle of the plane wave according to the system preset angle, and using a selected sampling gate to receive echo signals at each deflection angle.

[0048]N plane wave angles A1, A2, ..., AN preset in the internal file of the ultrasound imaging system can be read, such as -15°, -10°, 0°, 10°, 15°. The number N of plan...

Embodiment 2

[0056] figure 2 It is a schematic flowchart of the plane wave-based imaging method provided by Embodiment 2 of the present invention. This embodiment is optimized on the basis of the above-mentioned embodiments. In this embodiment, after calculating the IQ data at each deflection angle, the following steps are added: according to the IQ data, calculate the Spectrum of , determine the optimal deflection angle under each sampling gate.

[0057] see figure 2 , an imaging method based on plane waves, including:

[0058] S210, sequentially adjusting the deflection angles of the plane wave according to the system preset angles, and using a selected sampling gate to receive echo signals at each deflection angle.

[0059] S220. Perform beamforming on the echo signals, and calculate IQ data at each deflection angle.

[0060] S230. Calculate the frequency spectrum of each sampling gate at each deflection angle according to the IQ data, determine the optimal deflection angle for ea...

Embodiment 3

[0068] image 3 It is a schematic flowchart of the plane wave-based imaging method provided by Embodiment 3 of the present invention. This embodiment is optimized on the basis of the above-mentioned embodiments. In this embodiment, adjusting the plane wave deflection angles in sequence according to the system preset angles includes: calculating and adjusting the number of plane wave deflection angles according to the current pulse repetition frequency; When the number of system preset angles is greater than the number of adjusted plane wave deflection angles, the preset angles at both ends of the system preset angles are retained, and the pairwise adjacent system preset angle groups are divided by Sort from small to large; calculate the difference between the number of system preset angles and the number of adjusted plane wave deflection angles, and select two adjacent system preset angle groups according to the sorting ; Eliminate system default angles with larger absolute v...

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 discloses an imaging method and device based on plane waves. Wherein, the method includes: sequentially adjusting the deflection angle of the plane wave according to the system preset angle, and using a selected sampling gate to receive echo signals at each deflection angle; performing beamforming on the echo signals, and calculating each IQ data at deflection angles; compound weighting is performed on the spectrum at all deflection angles under each sampling gate to generate a Doppler spectrum. And it can automatically obtain the best offset angle to realize the automatic deflection of the spectrum Doppler angle. The instantaneous blood flow velocity information of multiple regions can be quantitatively analyzed at the same time, which simplifies the blood flow velocity scanning operation process and improves the efficiency of blood flow velocity scanning.

Description

technical field [0001] The invention relates to the technical field of medical ultrasonic imaging, in particular to an imaging method and device based on plane waves. Background technique [0002] Pulse Spectrum Doppler Imaging Technology and Color Doppler Imaging Technology are currently the two most important means in the field of blood flow imaging. Color Doppler imaging technology can provide intuitive blood flow distribution, but lacks the ability to quantitatively analyze blood flow velocity; spectral Doppler imaging technology can accurately and quantitatively detect blood flow velocity, so spectral Doppler imaging technology It is widely used in blood flow detection. [0003] Spectral Doppler imaging relies on the Doppler effect. When the direction of the ultrasound beam is perpendicular to the direction of the blood flow, according to the Doppler effect, the Doppler frequency deviation is almost zero at this time. Therefore, in this case, the sensitivity to blood...

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
Patent Type & Authority Patents(China)
IPC IPC(8): A61B8/00A61B8/06
CPCA61B8/00A61B8/06A61B8/4411A61B8/488A61B8/5207
Inventor 吴方刚凌涛
Owner VINNO TECH (SUZHOU) CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap