000 02408 am a22003493u 4500
042 _adc
100 1 0 _aHarput, Sevan
_eauthor
_91868
700 1 0 _aChristensen-Jeffries, Kirsten
_eauthor
_91869
700 1 0 _aRamalli, Alessandro
_eauthor
_91870
700 1 0 _aBrown, Jemma
_eauthor
_91871
700 1 0 _aZhu, Jiaqi
_eauthor
_91872
700 1 0 _aZhang, Ge
_eauthor
_91873
700 1 0 _aLeow, Chee Hau
_eauthor
_91874
700 1 0 _aToulemonde, Matthieu
_eauthor
_91875
700 1 0 _aBoni, Enrico
_eauthor
_91876
700 1 0 _aTortoli, Piero
_eauthor
_91877
700 1 0 _aEckersley, Robert J.
_eauthor
_91878
700 1 0 _aDunsby, Chris
_eauthor
_91879
700 1 0 _aTang, Meng-Xing
_eauthor
_91880
245 0 0 _a3-D Super-Resolution Ultrasound Imaging With a 2-D Sparse Array
260 _c2020-02-01.
500 _a/pmc/articles/PMC7614008/
500 _a/pubmed/31562080
520 _aHigh-frame-rate 3-D ultrasound imaging technology combined with super-resolution processing method can visualize 3-D microvascular structures by overcoming the diffraction-limited resolution in every spatial direction. However, 3-D super-resolution ultrasound imaging using a full 2-D array requires a system with a large number of independent channels, the design of which might be impractical due to the high cost, complexity, and volume of data produced. In this study, a 2-D sparse array was designed and fabricated with 512 elements chosen from a density-tapered 2-D spiral layout. High-frame-rate volumetric imaging was performed using two synchronized ULA-OP 256 research scanners. Volumetric images were constructed by coherently compounding nine-angle plane waves acquired at a pulse repetition frequency of 4500 Hz. Localization-based 3D super-resolution images of two touching subwavelength tubes were generated from 6000 volumes acquired in 12 s. Finally, this work demonstrates the feasibility of 3-D super resolution imaging and super-resolved velocity mapping using a customized 2-D sparse array transducer.
540 _a
540 _ahttps://creativecommons.org/licenses/by/4.0/This work is licensed under a CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) International license.
546 _aen
690 _aArticle
655 7 _aText
_2local
786 0 _nIEEE Trans Ultrason Ferroelectr Freq Control
856 4 1 _uhttp://dx.doi.org/10.1109/TUFFC.2019.2943646
_zConnect to this object online.
999 _c847
_d847