Ultrasound Spectral Doppler Imaging Method

An imaging method and spectrum technology, applied in the computer field, can solve problems affecting imaging effects and loss of spatial information

Active Publication Date: 2020-07-10
WHALE IMAGING INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional ultrasonic spectral Doppler system displays the flow velocity distribution of red blood cells in the axial gating, and it needs to summarize the spectral information, so that all the spatial information in the spectrogram will be lost, affecting the imaging effect

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  • Ultrasound Spectral Doppler Imaging Method

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Embodiment 1

[0025] Such as figure 1 As shown, an embodiment of the present invention provides an ultrasonic spectral Doppler imaging method, including:

[0026] 11. Get the big strobe;

[0027] 12. Dividing the large strobe into multiple small strobes;

[0028] 13. Applying the plurality of small gates for imaging.

[0029] Optionally, the acquisition of the large strobe includes:

[0030] The large gate is acquired by ultrasonic pulse transmission and reception at a single beamline position, and the frequency spectrum of the large gate in the pulse repetition frequency PRF direction represents the flow velocity distribution of the gate.

[0031] Optionally, the dividing the large gate into multiple small gates includes:

[0032] dividing the large gate into a plurality of small gates according to transmit and receive parameters of the ultrasound system;

[0033] Or, set the gate size according to the system parameters, and divide the large gate into multiple small gates;

[0034] A...

Embodiment 2

[0079] This embodiment introduces the Doppler imaging method of the embodiment of the present invention in detail. In the multi-gate pulse wave Doppler system of the embodiment of the present invention, the ultrasonic scanner repeatedly scans at the position of the control line defined as the "line of concern". A large gate is a segment of this line of interest that can be used to compute the spectrogram. In conventional pulse wave Doppler systems, the gating distance is between 1 mm and several centimeters. In multi-gated Doppler systems, the gate size can exceed 10 cm.

[0080] Rf(d,n) represents the sampled radio frequency (RF) signal, where d represents the axial index, and t represents the time direction (PRF direction) index. We perform axial demodulation and filtering to obtain the IQ (in-phase quadrature) complex baseband signal s(d,n). K represents the total number of small strobes. We first calculate the average value of the axial signal for the small gate k, whe...

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Abstract

The embodiment of the invention discloses an ultrasonic spectral Doppler imaging method, and belongs to the field of computers, which can improve the imaging effect. The ultrasonic spectral Doppler imaging method includes: acquiring a big gate; dividing the big gate into a plurality of small gates; and using the plurality of small gates to perform imaging. The method acquires the big gate, divides the big gate into the plurality of small gates, and uses the plurality of small gates to perform imaging, thereby improving the imaging effect.

Description

technical field [0001] The invention relates to the field of computers, in particular to an ultrasonic spectrum Doppler imaging method. Background technique [0002] Ultrasound spectral Doppler has the characteristics of non-invasive, real-time, and easy operation, and is widely used. The traditional ultrasonic spectral Doppler system displays the flow velocity distribution of red blood cells within the axial gating. It needs to summarize the spectral information, so that all the spatial information in the spectrogram will be lost, which will affect the imaging effect. Contents of the invention [0003] An embodiment of the present invention provides an ultrasonic spectral Doppler imaging method, which can improve the imaging effect. [0004] The embodiment of the present invention adopts following technical scheme: [0005] A method of ultrasonic spectral Doppler imaging, comprising: [0006] Get big strobe; [0007] The large strobe is divided into multiple small str...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B8/06G06T15/00
CPCA61B8/06A61B8/488A61B8/5207G06T15/005
Inventor 贺兴柏魏世宇
Owner WHALE IMAGING INC
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