Use of Quantitative Ultrasound to Measure Acoustic Properties of Human Skin

• Autorzy: Piotrzkowska H. , Litniewski J. , Lewandowski M. , Szymańska E. , Nowicki A.
• Języki publikacji: EN

Abstrakty

EN

The scattering of ultrasonic waves depends on the size, shape, acoustical properties and concentration of scatterers in the tissue. The spectrum of the ultrasonic backscatter can be used to characterize non-invasively the structural and mechanical properties of tissue. We intend to apply the custom-designed high-frequency ultrasonic scanner for the skin and cutaneous lesions characterization by evaluating their attenuating and scattering properties. In this pilot study, we have explored the possibility of extracting the human skin backscattering coefficient (BC) from the ultrasonic B-scans obtained in vivo at 20–30 MHz. The measured BC values of normal skin (dermis) agree well with the published data. We have found also that the spatial resolution of the BC determination using our scanner is sufficient (aprox. 1 mm2) to characterize small skin lesions and assess their penetration depth.

Słowa kluczowe

EN

attenuation coefficient; backscattering coefficient; dermis

• Wydawca: Instytut Podstawowych Problemów Techniki PAN ; Komitet Akustyki PAN ; Polskie Towarzystwo Akustyczne
• Czasopismo: Archives of Acoustics
• Rocznik: 2009
• Tom: Vol. 34, No. 4
• Strony: 471--480
• Opis fizyczny: Bibliogr. 9 poz., wykr.

Twórcy

autor

Piotrzkowska H.

autor

Litniewski J.

autor

Lewandowski M.

autor

Szymańska E.

autor

Nowicki A.

• Institute of Fundamental Technological Research Polish Academy of Sciences Pawinskiego 5B, 02-106 Warszawa, Poland,

Bibliografia

• [1] Fourier C, Bridal S., Reproducibility of skin characterization with backscatter spectra (12-25 MHz) in healthy subjects, Ultrasound in Med. & Biol., 27, 5, 603-610 (2001).
• [2] Guittet C., Ossant F., High-frequency estimation of the ultrasonic attenuation coefficient slope obtained in human skin: simulation and in vivo results, Ultrasound in Med. & Biol., 25, 3, 421-429 (1999).
• [3] Insana M.,Wagner R., Brown D., Hall T., Describing small-scale structure in random media using pulse echo ultrasound, J. Acoust. Soc. Am., 87, 179, 179-192 (1990).
• [4] Moran C., Bush N., Ultrasonic propagation skin properties of excited human skin, Ultrasound in Med. & Biol., 21, 9, 1177-1190 (1995).
• [5] O'Donnell M., Mimbs J., Miller J., Relationship between collagen and ultrasonic backscatter myocardial tissue, J. Acoust. Soc. Am., 69, 580-588 (1981).
• [6] Pan L., Zan L., Foster F., Ultrasonic and viscoelastic properties of skin under transverse mechanical stress in vitro, Ultrasound in Med. & Biol., 24, 995-1007 (1998).
• [7] Raju B., Srinivasan M., High-frequency ultrasonic attenuation and backscatter coefficients of in vivo normal human dermis and subcutaneous fat, Ultrasound in Med. & Biol., 27, 11, 1543-1556 (2001).
• [8] Raju B., Swindells K., Quantitative ultrasonic methods for characterization of skin lesions in vivo, Ultrasound in Med. & Biol., 29, 6, 825-838 (2003).
• [9] Wickline S., Verdonk E., Sobel B., Miller J., Identification of human myocardial infarction in vitro based on the frequency dependence of ultrasonic backscatter, J. Acoust. Soc. Am., 91, 3018-3025 (1992).