Purpose: A radiography system especially developed for specimen radiography and allowing maximal 20-fold magnification is presented. The efficiency of the system was tested and compared with that of conventional magnification mammography systems. Methods: Twenty-three surgical and 90 core biopsies of the breast were examined for detection of microcalcifications. As criteria the number of identifiable calcifications, their shape and configuration as well as tissue contrast were chosen. Results: The new technique detected about 40% more microcalcifications, 20% more and 50% more surgical biopsies containing calcifications. Thus, in a few cases, additional core biopsies were unnecessary. Moreover, this new system yielded additional information for the pathologist and surgeon concerning the exact location of suspicious lesions that facilitated working up specimens, or indicated additional surgical removal in special cases. Conclusions: By identification of malignant lesions not detectable with conventional magnification radiography systems, as well as a more exact localization of suspicious lesions, false-negative results may be reduced.
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Fortschr Röntgenstr 1998;168:133–138
© 1998 Published by Elsevier Inc.