Viscoelastic Characterization of in vivo Human Dermis Using High-Frequency Ultrasonic Crawling Wave Elastography

IEEE Access

Gilmer Flores¹  Roberto J. Lavarello¹  Fernando Zvietcovich²  Ana C. Saavedra²  Benjamin Castaneda³  Junior Arroyo³ 

[1] , Lima, Peru;Department of Engineering, Pontificia Universidad Cat&x00F3;lica del Per&x00FA;

关键词: Skin characterization;    elastography;    crawling wave elastography;    high-frequency ultrasound;    shear waves;    surface acoustic waves;   

DOI  :  10.1109/ACCESS.2022.3166514

来源: DOAJ

【 摘 要 】

High-frequency (center frequency of 18MHz) ultrasound was combined with crawling wave elastography to characterize skin viscoelastic properties in two anatomical sites (i.e., thigh and forearm) in humans in the range of 200–400 Hz. The Voigt model was used to obtain shear elasticity and shear viscosity estimates. The forearm’s mean shear elasticity and shear viscosity were 6 kPa and 5.5 Pa.s, respectively, exhibiting significantly higher values than in the thigh (3.4 kPa and 3.2 Pa.s, respectively, p < 0.05). These results suggest that skin viscoelastic properties can be estimated in vivo using high-frequency crawling wave elastography and show translation potential for future application in the clinical screening of skin disorders.

【 授权许可】

Unknown