Analysis of Factors Affecting Shear Wave Speed in in vivo Skin

Published

Conference Paper

© 2019 IEEE. In 10 patients with cutaneous sclerotic skin conditions, shear wave elasticity imaging (SWEI) was used to measure shear wave speed in the skin in vivo. The dermis was segmented using an thresholding-based algorithm and group speeds were found in both the dermis and the subcutaneous tissue. Phase velocities were calculated in the layer, and a linear regression was fit to obtain a dispersion slope. A statistically significant non-zero dispersion was found in the skin in vivo. An ordinary least squares multiple linear regression was performed to assess what factors affected the dispersion slope. Thickness did not have a statistical effect on the dispersion slope in each model, and subcutaneous speed was only found to have a statistical effect at one of two investigated frequency-thickness products. This work shows SWEI based dispersion in the skin in vivo and demonstrates the importance of subcutaneous speed in future models.

Full Text

Duke Authors

Cited Authors

  • Knight, AE; Pely, AB; Jin, FQ; Cardones, AR; Palmeri, ML; Nightingale, KR

Published Date

  • October 1, 2019

Published In

Volume / Issue

  • 2019-October /

Start / End Page

  • 970 - 973

Electronic International Standard Serial Number (EISSN)

  • 1948-5727

International Standard Serial Number (ISSN)

  • 1948-5719

International Standard Book Number 13 (ISBN-13)

  • 9781728145969

Digital Object Identifier (DOI)

  • 10.1109/ULTSYM.2019.8925965

Citation Source

  • Scopus