Abstract
The paper presents the classification of the healthy skin and the skin lesions (basal cell carcinoma and actinic keratosis), basing on the statistical parameters of the envelope of ultrasonic echoes. The envelope was modeled using Rayleigh and non-Rayleigh (K-distribution) statistics. Furthermore, the characteristic parameter of the K-distribution, the effective number of scatterers was investigated. Also the attenuation coefficient was used for the skin lesion assessment.
The comparison of the results obtained for the region of skin where the pathological states were diagnosed with the results obtained for healthy skin has shown differences in the values of attenuation coefficient and effective number of scatterers (M). The attenuation coefficient was higher in the case of pathological state of the skin. The effective number of scatterers, obtained for the skin cancer was lower comparing to the value obtained for healthy skin. No differences were found in the values of M parameters calculated for healthy skin and precancerous state. The results, indicate that the combination of quantitative ultrasound parameters, has the potential for extracting information useful for the skin conditions characterization.
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Piotrzkowska, H., Litniewski, J., Nowicki, A., Szymańska, E. (2012). Statistical Properties of Echosignal Obtained from Human Dermis In Vivo. In: Nowicki, A., Litniewski, J., Kujawska, T. (eds) Acoustical Imaging. Acoustical Imaging, vol 31. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-2619-2_13
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DOI: https://doi.org/10.1007/978-94-007-2619-2_13
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