Evaluation of Skin Viscoelasticity and Anisotropy by Measurement of Speed of Shear Wave Propagation With Viscoelasticity Skin Analyzer1  Akiva Vexler, Igor Polyansky, Raphael Gorodetsky  Journal of Investigative Dermatology  Volume 113, Issue 5, Pages 732-739 (November 1999) DOI: 10.1046/j.1523-1747.1999.00751.x Copyright © 1999 The Society for Investigative Dermatology, Inc Terms and Conditions

Figure 1 Block diagram of the VESA device. Journal of Investigative Dermatology 1999 113, 732-739DOI: (10.1046/j.1523-1747.1999.00751.x) Copyright © 1999 The Society for Investigative Dermatology, Inc Terms and Conditions

Figure 2 Effect of the agar and agarose gel density on the SWP recorded in these gels. Two independent experiments for each gel are presented. Journal of Investigative Dermatology 1999 113, 732-739DOI: (10.1046/j.1523-1747.1999.00751.x) Copyright © 1999 The Society for Investigative Dermatology, Inc Terms and Conditions

Figure 3 Effect of the thickness of agar gels of different densities placed on different silicone rubbers on the SWP recorded in the gels. Journal of Investigative Dermatology 1999 113, 732-739DOI: (10.1046/j.1523-1747.1999.00751.x) Copyright © 1999 The Society for Investigative Dermatology, Inc Terms and Conditions

Figure 4 Anisotropy in the stiffness of artificial materials and intact human skin. (a) Silicone rubber and agarose gel; (b) skin of the upper part of volar forearm. Journal of Investigative Dermatology 1999 113, 732-739DOI: (10.1046/j.1523-1747.1999.00751.x) Copyright © 1999 The Society for Investigative Dermatology, Inc Terms and Conditions

Figure 5 SWP in the skin of the forearm. Correlation between the SWP in the skin of right and left forearms in healthy females (a) and males (b) measured in vertical and horizontal directions. Journal of Investigative Dermatology 1999 113, 732-739DOI: (10.1046/j.1523-1747.1999.00751.x) Copyright © 1999 The Society for Investigative Dermatology, Inc Terms and Conditions

Figure 6 SWP in the skin of upper, middle and lower parts of both forearms of healthy males and females measured in vertical and horizontal directions. Journal of Investigative Dermatology 1999 113, 732-739DOI: (10.1046/j.1523-1747.1999.00751.x) Copyright © 1999 The Society for Investigative Dermatology, Inc Terms and Conditions

Figure 7 Effect of hydrating cream on skin viscoelasticity. Hydrating creams (A, B) and placebo was applied on the forearm skin and SWP was measured in vertical (a) and horizontal (b) directions. Journal of Investigative Dermatology 1999 113, 732-739DOI: (10.1046/j.1523-1747.1999.00751.x) Copyright © 1999 The Society for Investigative Dermatology, Inc Terms and Conditions

Figure 8 Correlation between the SWP in the skin of right and left breasts in healthy women measured in vertical and horizontal directions. Journal of Investigative Dermatology 1999 113, 732-739DOI: (10.1046/j.1523-1747.1999.00751.x) Copyright © 1999 The Society for Investigative Dermatology, Inc Terms and Conditions

Figure 9 The effect of age on breast skin viscoelasticity. Age-dependence of the SWP (a) and anisotropy (b) is demonstrated in the breast skin of healthy women. Journal of Investigative Dermatology 1999 113, 732-739DOI: (10.1046/j.1523-1747.1999.00751.x) Copyright © 1999 The Society for Investigative Dermatology, Inc Terms and Conditions