Abstract
Radiation exposure was measured in 100 female patients undergoing mammography by the Egan technique. Both axillary views were excluded to simulate expected exposures in a large population survey. Additionally, 40 phantom studies were performed on a modified Alderson-RANDO phantom. Every attempt was made to reproduce the clinical situation. Patient dose ranged from background on the dorsum of the left foot to a maximum of 11 R on the surface of the inner breast. This compares to a maximum of 18 R reported earlier when the axillary views were included. With axillary views omitted, bone marrow measurements showed a 300% reduction in exposure.
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