Comparison Between the 45-Sec Processing System and the 90-Sec Processing System for Mammography

Abstract

The observer performance tests of two processing systems were also canied out ． According to the imaging preperties ， the 45・ sec processing system was inferior to the 90 sec processing systern ［ n contrast and MTF ． The results of the observer performance tests using a RMI − 156 phantom also indicated that the 45 − sec precessing system was inferior to the 90 ・ sec processing system ． Qne Qf the main reasQns why the 45 ・ sec pr essing system was worse 、 is thought to be し hat tbe 45 − sec prQcessing canbe obtained sufflcient filrn con し rast and film speed ，