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This paper proposes a new strategy for surface roughness analysis and characterisation based on the wavelet transform. After a short review of wavelet-based methods used in the field of surface roughness analysis, results obtained using a new tool of analysis called the frequency normalised wavelet transform (FNWT) are presented.
To evaluate the incidence of coronary artery disease in peripheral vascular surgery, three groups of patients (table. I) were studied retrospectively: 286 patients who had vascular surgery with no concern for the location of arterial lesions (group I); 130 patients electively operated for infra-renal abdominal aortic aneurysm (group II); and 120 patients… (More)
The authors report a case of differentiated myxoid liposarcoma with a survival of 27 years as a result of repeated resections. They emphasise the value of a precise study of the histological type and grade: well differentiated and/or myxoid forms of liposarcomas appear to have a more favourable long term prognosis. This prognosis justifies repeated… (More)