2019/02/05 by Sevan Harput, Harput, S., K. Christensen-Jeffries +37
Engineering · Medicine · Physics and Astronomy · #Photoacoustic and Ultrasonic Imaging #Ultrasound Imaging and Elastography #Ultrasound and Hyperthermia Applications #physics.med-ph
paper · pdf · doi:10.48550/arxiv.1902.02631
arXiv admin note: substantial text overlap with arXiv:1902.01608
arxiv created 2019/02/05 · arxiv updated 2019/02/08
Super-resolution ultrasound imaging has been so far achieved in 3-D by mechanically scanning a volume with a linear probe, by co-aligning multiple linear probes, by using multiplexed 3-D clinical ultrasound systems, or by using 3-D ultrasound research systems. In this study, a 2-D sparse array was designed with 512 elements according to a density-tapered 2-D spiral layout and optimized to reduce the sidelobes of the transmitted beam profile. High frame rate volumetric imaging with compounded plane waves was performed using two synchronized ULA-OP 256 systems. Localization-based 3-D super-resolution images of two touching sub-wavelength tubes were generated from a 120 second acquisition.