HYDROACOUSTICS
ANNUAL JOURNAL
START NEW VOL 20 SEARCH STATISTICS PAS - GDANSK DIVISION

Statistical analysis of ultrasound echo for skin lesions classification

pp. 171-178, vol. 15, 2012

Hanna Piotrzkowska
Institute of Fundamental Technological Research, Department of Ultrasound, Warsaw, Poland

Jerzy Litniewski
Institute of Fundamental Technological Research, Department of Ultrasound, Warsaw, Poland

Elżbieta Szymańska
CSK MSWiA Hospital, Dermatology Clinic, Warsaw, Poland

Andrzej Nowicki
Institute of Fundamental Technological Research, Department of Ultrasound, Warsaw, Poland

Key words: propagation of ultrasonic wave; human tissue; imaging

Abstract: Propagation of ultrasonic waves in the tissue is sensitive to the alternation of tissue composition and structure. This paper presents the classification of healthy skin and skin lesions (basal cell carcinoma (BCC)) based on statistic parameters of the envelope of echosignal. The statistics of envelope of the ultrasonic signal was modeled using Rayleigh and non-Rayleigh (the K-distribution) statistics. Furthermore the characteristic parameter of K-distribution, the effective number of scaterrers (M) was investigated. Comparison of the results obtained for region of the skin where the BCC was diagnosed and the regions of healthy skin has shown differences in the values of M parameter. These results indicate that this parameter has the potential for extracting information useful for characterizing skin lesions.

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© Polish Acoustical Society - Gdansk Department, Polish Academy of Sciences. This work is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported. (CC BY-NC-SA 3.0)