Radiological review of interval cancers in an Australian mammographic screening programme

Abstract

Objectives - To determine the proportion and features of invasive interval cancers that could be considered detectable at the time of the previous screen and the proportion of cases that could be classified as true intervals, false negatives, minimal signs, or radiographically occult lesions. Setting - BreastScreen Victoria, the Victorian component of the BreastScreen Australia mammography screening programme. Methods - Two separate review methodologies were adopted. Firstly a blinded review of interval, screen detected, and normal cases was undertaken, followed by a confirmation exercise to determine the proportion of invasive interval cancers that could be considered detectable at the time..