Ultrasound tomography of the breast using linear arrays.
Journal
ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
Journal Volume
V
Pages
V989-V992
Date Issued
2005
Author(s)
Li, Pai-Chi
Abstract
An approach for tomographic reconstructions of the sound velocity distribution and attenuation coefficient distribution in the breast using linear arrays is proposed. The time-of-flight and attenuation data are acquired by a linear array positioned at the top of a compressed breast and a metal plate is placed at the bottom as a reflector. The refraction effects on the attenuation data are compensated using a technique based on the angular spectrum method. A reconstruction algorithm based on a convex programming formulation and incorporating the segmentation information from the B-mode image is used. The experimental setup includes a phantom made of materials mimicking different tissues in the breast. Results show that obtaining the sound velocity distribution and attenuation coefficient distribution is feasible with the proposed algorithm under current B-mode imaging setup with linear arrays. Such an imaging method has the potential of enhancing the breast cancer detection. ? 2005 IEEE.
SDGs
Other Subjects
Acoustic wave velocity; Algorithms; Attenuation; Image reconstruction; Refraction; Ultrasonic applications; Attenuation coefficient; B-mode image; Sound velocity distribution; Tomographic reconstructions; Tomography
Type
conference paper
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