Negative development xeroradiography of the breast: doses and clinical indications.

Negative-mode xeroradiography is discussed in relation to the clinical indications and the radiation doses in the breast per exposure. The radiation doses have been obtained using a computer algorithm specially designed to calculate breast volumes by constructing a three-dimensional body from the two dimensional cranio-caudal and medio-lateral images. A mathematical integration procedure is then applied throughout the volume to obtain the absorbed dose.