一种基于去偏的超快超声微血管成像噪声抑制方法
By adjusting the pulse excitation or completely shutting down the ultrasound emission in the ultrasound imaging system, bias noise is suppressed, solving the problems of high noise and poor imaging effect in ultrafast ultrasound microvascular imaging, and achieving efficient noise suppression and improved imaging quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- NORTHEASTERN UNIV CHINA
- Filing Date
- 2023-10-27
- Publication Date
- 2026-07-17
AI Technical Summary
In existing ultrafast ultrasound microvascular imaging technology, electronic noise exhibits a bias phenomenon, resulting in poor image quality, especially in the deep imaging region where noise is high and blood flow signal intensity is weak. Existing methods are computationally complex and time-consuming.
Two noise suppression methods are employed: when the hardware level is high, the pulse excitation is modified in the digital beamformer to shut down part of the ultrasonic transmission; when the hardware level is low, the ultrasonic probe transmission power is completely turned off for noise acquisition and calculation, and the ultrasonic transmission is then turned on or off after the noise stability is determined.
It effectively suppresses bias noise, improves the imaging signal-to-noise ratio and noise ratio, enhances imaging quality, and is compatible with various ultrafast micro-blood flow imaging schemes. It does not require changes to the core algorithm, simplifies operation, and reduces computational complexity.
Smart Images
Figure CN117281552B_ABST