Journal
ACOUSTICAL PHYSICS
Volume 69, Issue 1, Pages 112-118Publisher
PLEIADES PUBLISHING INC
DOI: 10.1134/S106377102270004X
Keywords
ultrasound imaging; inhomogeneous media; two-dimensional array; skull; brain; delay-and-sum beamforming
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The paper presents the results of evaluating the thickness profile of a skull phantom using a two-dimensional ultrasound array. Two pulse-echo ultrasound methods, A-mode elementwise measurements and scanning with a focused probing beam created by the entire array using delay-and-sum (DAS) beamforming, were used in the experiment. The obtained thickness profiles were compared with the reference thickness profile obtained using X-ray computed tomography. The study showed that ultrasound DAS beamforming with a focused probing beam enables estimation of the thickness profile of the skull phantom.
The paper presents the results of evaluating the thickness profile of a skull phantom using a two-dimensional ultrasound array consisting of piezoelectric elements with a center frequency of 2.1 MHz. Two pulse-echo ultrasound methods were used in the experiment: the A-mode elementwise measurements and scanning with a focused probing beam created by the entire array using delay-and-sum (DAS) beamforming. The obtained thickness profiles are compared with the reference thickness profile obtained using X-ray computed tomography. It was shown that ultrasound DAS beamforming with a focused probing beam makes it technically possible to estimate the thickness profile of the skull phantom.
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