2019/02/05 by Sevan Harput, Kirsten Christensen-Jeffries, Harput, S. +31
Engineering · Medicine · #Photoacoustic and Ultrasonic Imaging #Ultrasound Imaging and Elastography #Ultrasound and Hyperthermia Applications
paper · pdf · doi:10.48550/arxiv.1902.02631
Super-resolution ultrasound imaging has been so far achieved in 3-D by\nmechanically scanning a volume with a linear probe, by co-aligning multiple\nlinear probes, by using multiplexed 3-D clinical ultrasound systems, or by\nusing 3-D ultrasound research systems. In this study, a 2-D sparse array was\ndesigned with 512 elements according to a density-tapered 2-D spiral layout and\noptimized to reduce the sidelobes of the transmitted beam profile. High frame\nrate volumetric imaging with compounded plane waves was performed using two\nsynchronized ULA-OP 256 systems. Localization-based 3-D super-resolution images\nof two touching sub-wavelength tubes were generated from a 120 second\nacquisition.\n