[Demonstration and recognition of microcalcification on xeromammograms (author's transl)].

The ability to demonstrate detail and to recognise microcalcification on xero-radiographs was investigated experimentally under conditions resembling those in actual practise; the results were compared with those of film mammography, and evaluated quantitatively. Xero-radiographs were slightly better, but in general were comparable in their ability to demonstrate microcalcification. The effect of the quality of the radiation and of geometric factors is discussed, and size of the smallest recognisable particles is given. Problems of optimal exposure in xero-radiography are discussed.