Light - in acoustic imaging applications, and system and method for detecting the flow, to improve the SNR performance

摘要

The present invention, light - provides a method and system combined with power Doppler signal processing, the acoustic imaging - acoustic imaging / heat. In particular, in order to detect blood flow in vivo, to image, the disclosed systems and methods may include a Doppler signal which has been encoded. Achieve the sensitivity characteristics (SNR) characteristic signal-to-noise ratio, in order to improve other words, the method and detection system of flow are disclosed, light with PD - used in acoustic imaging. Light, the encoded signal includes an acoustic imaging data - - light to (i) target area method for detecting the flow of the target region, obtaining using the acoustic imaging system, (ii) a step of decoding the encoded signal, a step of additional low pass filter and demodulator (iii) the decoded signal results in a baseband signal as a result, is passed through a wall filter and (iv) the base band signal, the result By integrating a step resulting from a signal obtained by removing the clutter as the power spectrum of the signal is removed (v) the clutter, it contains, estimating the R ₀ values.