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Radiology, Vol 173, 65-69, Copyright © 1989 by Radiological Society of North America
ARTICLES |
L Tabar and AG Haus
Falun Central Hospital, Sweden.
Sensitometrically exposed film strips and clinical mammograms from single-emulsion Kodak Ortho M SO-177 and double-emulsion Kodak T-Mat M II films were processed in separate film processors set up for standard and extended-cycle processing. For the extended-cycle method, it is necessary to use a process that is dedicated to mammographic films only. Radiation dose reductions of approximately 30% for Ortho M film and 13% for T-Mat M II film were achieved with the extended-cycle process. In the mammogram comparisons, higher-contrast images were obtained with Ortho M film in the extended-cycle process, which allowed for improved demonstration of marginal structural characteristics of soft-tissue masses and better differentiation of benign and malignant tumors. No significant differences in contrast were observed in the T- Mat M II mammograms obtained with the extended-cycle process.
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