Joint Fourier Transform Cross-Correlation for Liver Echotexture Classification
Tissue characterization of liver echographic scans was obtained using an optical-digital procedure of direct correlation between the unknown texture and a set of reference textures.
The method, tested on a selected group of static liver B-scans, gave a 90% accuracy. To date the search is being carried out by collecting and evaluating new cases of diffuse liver diseases: a set of 21 linear dynamic scans has been processed obtaining a 76.2% sensitivity in the correct recognition of a pathologic state. Considering only the cases with grade 1 fibrosis and/or grade 1 fatty infiltration a 69.2% sensitivity was achieved.
KeywordsFatty Infiltration Correct Recognition Tissue Characterization Reference Texture Diffuse Liver Disease
Unable to display preview. Download preview PDF.
- Birnholz, J.C., 1979, Ultrasound evaluation of diffuse liver disease, in: “Clinics in Diagnostic Ultrasound”, Vol. I, 23:33.Google Scholar
- Rizzatto, G., Sirotti, P., Bazzocchi, M., Boltro, E., Busilacchi, P., Candiani, F., Ferrari, F., Giuseppetti, G.M., Lo Russo, G., Mirk, P., Maresca, G., Rubaltelli, L., Volterrani, L., Zappasodi, F., 1982, Standardized Ultrasonic Valuation of Diffuse Liver Diseases, in: “Ultrasound 1982”, ed. R.A. Lerski, P. Morley, Pergamon Press Ltd., Oxford.Google Scholar
- Sirotti, P., Rizzatto, G., Di Stefano, E., 1985, Optical-digital Joint Fourier Transform classification of liver echotexture, in: “Acoustical Imaging”, Vol. 14, 765:768, ed. A.J. Berkhout, J. Ridder, L.F. van der Wal, Plenum Press, New York and London.Google Scholar
- Sirotti, P., Rizzatto, G., 1985, Coherent Optical Cross-Correlation for Ultrasonic Texture Classification, in: “Ultrasonic Tissue Characterization and Echographic Imaging 5. Proceedings of the fifth European Communities Workshop, ed. J.M. Thijssen and V. Mazzeo, Ferrara.Google Scholar