Updated Technology in Ultrasound Blood Flow Imaging

Abstract

Color flow imaging (CDI) is widely used for ultrasound diagnosis today. However the spatial and temporal resolution of CDI are expected to improve further. A new technique called B-Flow, which uses a pulse compression technique, extends the broadband resolution and high frame rate of B-mode ultrasonography for blood flow imaging.
Since the intra-venous ultrasound contrast agent Levovist^TM became available, several new contrast imaging methods have been proposed. Coded harmonic angio (CHA), developed by GE, provides an effective means of suppressing non-moving tissue signals and enhancing broadband contrast signals.