乳房撮影における45秒処理システムと90秒処理システムの比較

概要

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To compare the diagnostic quality of mammographs using the 45-sec prosessing system (M200/SR-IC with 45-sec processing) with that using the 90-sec processing system (HR mammo fine/MIMA with 90-sec processing), those imaging properties (characteristic curve, MTF, WS), were measured. The observer performance tests of two processing systems were also carried out. According to the imaging properties, the 45-sec processing system was inferior to the 90 sec processing system in contrast and MTF. The results of the observer performance tests using a RMI-156 phantom also indicated that the 45-sec processing system was inferior to the 90-sec processing system. One of the main reasons why the 45-sec processing system was worse, is thought to be that the 45-sec processing can be obtained sufficient film contrast and film speed.
公益社団法人日本放射線技術学会の論文
1995-01-01