کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
723356 | 892344 | 2006 | 5 صفحه PDF | دانلود رایگان |
Classical acoustic parameters (wavespeed, attenuation and backscattering coefficients and mean scatterer spacing) have been used in the characterisation of biological tissue pathologies. Liver fibrosis is a common disease, classified according to the Metavir Scale (from F0: normal, to F4: cirrhosis). The present work evaluates fibrosis discrimination by combining the mentioned parameters and applying a discriminant analysis on ultrasonic backscattering signals from 20 in vitro human liver samples. The highest correct classification percentages (85-90%) happened for parameters combination in groups of there. The limits and potentiality of the study are also discussed. A greater number of samples and non-linear classification methods are presently being pursued.
Journal: IFAC Proceedings Volumes - Volume 39, Issue 18, 2006, Pages 177–181