Blood flow visualization method, apparatus, digital scan converter, and ultrasound imaging system

By performing gain amplification, numerical inversion, and data compensation on the ultrasound echo data, the numerical difference between the noise signal and the blood flow signal is amplified, thus solving the interference of the noise signal on the blood flow signal and improving the accuracy of the blood flow imaging.

CN115886872BActive Publication Date: 2026-01-06SONOSCAPE MEDICAL CORP
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Patent Information

Application Number
CN202111166669.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2021-09-30
Publication Date
2026-01-06
Estimated Expiration
2041-09-30

AI Technical Summary

Technical Problem

In existing technologies, it is difficult to effectively suppress the interference of noise signals on blood flow signals, especially under low signal-to-noise ratio conditions, where noise signals can easily confuse weak blood flow signals and affect the blood flow imaging effect.

Method used

By performing gain amplification, numerical inversion, and data compensation on the ultrasound echo data, the value of the noise signal is increased while the value of the blood flow signal is decreased, thereby widening the numerical difference between the noise signal and the blood flow signal and generating a blood flow imaging map.

Benefits of technology

It effectively improves the anti-noise interference capability of blood flow signals, enhances the contrast effect between blood flow areas and non-blood flow areas in blood flow imaging, improves image accuracy, and solves the noise flicker problem.

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Abstract

This application discloses a blood flow imaging method, apparatus, digital scan converter, and ultrasound imaging system. The method includes: acquiring real-time acquired ultrasound echo data; the ultrasound echo data includes blood flow signal data and noise signal data, wherein the average value of the blood flow signal data is higher than the average value of the noise signal data; performing gain amplification processing on the ultrasound echo data; performing numerical inversion processing on the ultrasound echo data so that the average value of the blood flow signal data is lower than the average value of the noise signal data; performing data compensation processing to shift the ultrasound echo data of each pixel to the positive domain after data compensation of the same amplitude; and mapping the values ​​of the compensated ultrasound echo data onto a chromatogram to generate a blood flow imaging map. This application expands the numerical difference between the noise signal and the blood flow signal, improves the anti-noise interference capability of the blood flow signal, and significantly improves the image quality of the blood flow imaging map.
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