@ARTICLE{Piotrzkowska_Hanna_Ultrasonic_2012, author={Piotrzkowska, Hanna and Nowicki, Andrzej and Litniewski, Jerzy and Szymańska, Elżbieta}, volume={vol. 37}, number={No 1}, journal={Archives of Acoustics}, pages={103-108}, howpublished={online}, year={2012}, publisher={Polish Academy of Sciences, Institute of Fundamental Technological Research, Committee on Acoustics}, abstract={The paper presents a classification of the healthy skin and the skin lesions (basal cell carcinoma) basing on a statistics of the envelope of ultrasonic echoes. The echoes envelopes distributions were modeled using Rayleigh and K-distribution. The distributions were compared with empirical data to find which of them better models the statistics of the echo-signal obtained from the human skin. The results indicated that the K-distribution provides a better fit. Also, a characteristic parameter of the K-distribution, the effective number of scatterers (M), was investigated. The values of the M parameter, obtained for the skin cancer (basal cell carcinoma), were lower as compared to those obtained for the healthy skin. The results indicate that the statistical quantitative ultrasound parameters have a potential for extracting information useful for characterization of the skin condition.}, type={Artykuły / Articles}, title={Ultrasonic Echosignal Applied to Human Skin Lesions Characterization}, URL={http://journals.pan.pl/Content/101578/PDF/14_paper.pdf}, doi={10.2478/v10168-012-0014-7}, keywords={statistics, K-distribution, Rayleigh distribution, ultrasonic scattering, human dermis}, }