[Cancers detected at over-reading: analysis of data from the Loire-Atlantic breast cancer screening program, 2003-2005 (update)].
Systematic over-reading of screening mammograms increases the number of cancers detected. Published results will vary based on the particularities of different programs. A feature of the revised French program is that over-reading is limited to ACR BI-RADS 1 and 2 mammograms. In the Loire-Atlantic region, 8.7% of detected cancers between 2003-2005 were detected at over-reading. We have reviewed our database to analyze the features of these cancers detected only by the second reviewer during this period and search for causes of non-detection by the initial reviewer. Cancers detected only by the second reviewer were generally small. Breast parenchyma was mainly type 1 or 2 of the BI-RADS classification. In our study, 60% of these cancers initially missed were considered as "detection errors" because there were not detected by the initial reviewer whereas 40% were considered as "interpretation errors" because they were detected by the initial reviewer but interpreted as benign.
Doutriaux-Dumoulin
I
I
Service d'Imagerie médicale, Centre René Gauducheau, CRLCC Nantes-Atlantique, boulevard J. Monod, 44805 Nantes-Saint Herblain.
Allioux
A
A
Campion
L
L
Meingan
P
P
Molina
L
L
D001940:Breast / Q000473:pathology; D001943:Breast Neoplasms / Q000145:classification / Q000000981:diagnostic imaging*; D002114:Calcinosis / Q000145:classification / Q000000981:diagnostic imaging; D002278:Carcinoma in Situ / Q000145:classification / Q000000981:diagnostic imaging; D018270:Carcinoma, Ductal, Breast / Q000145:classification / Q000000981:diagnostic imaging; D018275:Carcinoma, Lobular / Q000145:classification / Q000000981:diagnostic imaging; D003951:Diagnostic Errors; D005260:Female; D005602:France; D006801:Humans; D008198:Lymph Nodes / Q000000981:diagnostic imaging; D008327:Mammography / Q000379:methods*; D008403:Mass Screening / Q000379:methods*; D012189:Retrospective Studies; D016217:Ultrasonography, Mammary