부산대학교 도서관

We determined the re-attendance rate at screening mammography after a single or a repeated false positive recall and we assessed the effects of transition from screen-film mammography (SFM) to full-field digital mammography (FFDM) on screening outcome in women recalled twice for the same mammographic abnormality. The study population consisted of a consecutive series of 302,912 SFM and 90,288 FFDM screens. During a 2 years follow-up period (until the next biennial screen), we collected the breast imaging reports and biopsy results of all recalled women. Re-attendance at biennial screening mammography was 93.2% (95% CI 93.1-93.3%) for women with a negative screen (i.e., no recall at screening mammography), 65.4% (95% CI 64.0-66.8%) for women recalled once, 56.7% (95% CI 47.1-66.4%) for women recalled twice but for different lesions and 44.3% (95% CI 31.4-57.1%) for women recalled twice for the same lesion. FFDM recalls comprised a significantly larger proportion of women who had been recalled twice for the same lesion (1.9% of recalls (52 women) at FFDM vs. 0.9% of recalls (37 women) at SFM, P < 0.001) and the positive predictive value of these recalls (PPV) was significantly lower at FFDM (15.4 vs. 35.1%, P = 0.03). At review, 20 of 52 women (39.5%, all with benign outcome) would not have been recalled for a second time at FFDM if the previous hard copy SFM screen had been available for comparison. We conclude that a repeated false positive recall for the same lesion significantly lowered the probability of screening re-attendance. The first round of FFDM significantly increased the proportion of women recalled twice for the same lesion, with a significantly lower PPV of these lesions. Almost 40% of repeatedly recalled women would not have been recalled the second time if the previous hard copy SFM screen had been available for comparison at the time of FFDM. Keywords Breast cancer screening * Re-attendance * Digital screening * False positive recall
Introduction In the last two decades, many Western countries have implemented screening mammography programs with the aim to reduce mortality from breast cancer through early detection [1]. Screening programs seek [...]