METHOD FOR REDUCING SPECKLE IN VESSEL IMAGING

摘要

This invention is a method for using an ultrasound imaging system comrpising: a signal processing device (10) and an ultrasonic imaging system (12) including a catheter probe (13) wherein ultrasonic beams (14) are emitted by an exciter (16), and spokes (18) of information are collected from a target (20), the interior walls of a blood vessel based on ultrasonic reflections at a transducer (22). Ultrasound echoes representing vessel walls are distinguished from ultrasound echoes from blood by using a classifier which employs the mean and variance of the raw data of gray intensities as acquired directly from an ultrasound scanner detector. In a specific embodiment, the statistical parameters of mean and variance are determined in the course of real time processing and prior to attempted classification and then are used as parameters representing the true image as acquired.