High-frame-rate imaging of a carotid bifurcation using a low-complexity velocity estimation approach

摘要

Vector flow imaging (VFI) improves the operator's workflow allowing the quantitative evaluation of blood flow with no need for manual angle corrections. Currently, commercial VFI implementations are based on a line-by-line estimation, compromising the frame rate and the possibility of imaging fast flow dynamics. High-frame-rate methods are, however, computationally demanding. The objective of this work is to demonstrate that quantitative VFI can be achieved in-vivo at high-frame-rate using only six pre-beamformed lines and with lowered requirements for the ultrasound system.