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Ultrasonic system Doppler signal gap interpolation method and system

A Doppler signal and ultrasound system technology, applied in the Doppler signal gap interpolation method and system field of the ultrasound system, can solve the problems of no obvious advantages, complicated implementation, etc., achieve the effect of less high-frequency pseudo-noise and improve the interpolation quality

Active Publication Date: 2017-06-23
VINNO TECH (SUZHOU) CO LTD
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Problems solved by technology

Compared with U.S. Patent No. US5016641 and U.S. Patent Application No. US2007 / 0049823, this method has no obvious advantages. In addition, it generates filter coefficients in real time according to the frequency spectrum, which is relatively complicated to implement.

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  • Ultrasonic system Doppler signal gap interpolation method and system
  • Ultrasonic system Doppler signal gap interpolation method and system
  • Ultrasonic system Doppler signal gap interpolation method and system

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Embodiment Construction

[0077] The present invention will be described in detail below in conjunction with various embodiments shown in the drawings. However, these embodiments do not limit the present invention, and any structural, method, or functional changes made by those skilled in the art according to these embodiments are included in the protection scope of the present invention.

[0078] Such as Figure 6 As shown, the schematic diagram of the ultrasound imaging process structure in the ultrasound system.

[0079] The ultrasonic signal in the tissue is converted into an electrical analog signal by different elements of the probe transducer, amplified by the pre-amplifier module, and then converted into a digital signal by the A / D digital-to-analog conversion module; the digital signals of each different element are beam-synthesized The module synthesizes a radio frequency signal; after the radio frequency signal undergoes quadrature demodulation, the I / Q signal of the quadrature demodulation...

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Abstract

The present invention provides a Doppler signal gap interpolation method and system of an ultrasound system; the method includes: acquiring two adjacent Doppler scan signals; performing interpolation in the gap between the two Doppler scan signals calculating to obtain an interpolation sequence inserted into the gap; performing frequency domain correction on the interpolation sequence to obtain a time domain signal inserted into the gap. The Doppler signal gap interpolation method and device of the ultrasonic system of the present invention adopts a real-time self-adaptive Doppler interpolation scheme to obtain the interpolation sequence for inserting the gap; further, the frequency domain correction is performed on the interpolation sequence to obtain the Gaps in the time domain signal; the acquired spectrogram has less high-frequency pseudo-noise and is more continuous where the spectrum changes rapidly, improving the interpolation quality of the Doppler spectrum.

Description

technical field [0001] The invention belongs to the technical field of ultrasonic diagnostic imaging, and relates to an ultrasonic system Doppler signal gap interpolation method and system. Background technique [0002] Ultrasonic diagnostic equipment (B-ultrasound machine) has unique characteristics, such as real-time performance; among them, dynamic blood flow and Doppler imaging, which are commonly used in ultrasonic diagnostic equipment, have become one of the indispensable means of auxiliary diagnosis in modern medicine; Puller imaging can conveniently and quickly measure the specific flow rate of blood flow, and has become a criterion for judging certain diseases in clinical diagnosis. [0003] During the Doppler (referred to as PW) inspection process, two modes are usually used: single-synchronization mode and multi-synchronization mode; the single-synchronization mode is relatively simple, and the entire scanning process only follows a certain rate (During Doppler sc...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B8/00
Inventor 郭建军陈惠人
Owner VINNO TECH (SUZHOU) CO LTD
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