The diagnostic value of the automated breast volume scanner in ductal carcinoma in situ

Objective To investigate the value of the automated breast volume scanner (ABVS) in the diagnosis of ductal carcinoma in situ (DCIS). Methods Sixty-seven patients who were diagnosed as DCIS by histopathology from December, 2010 to December, 2012 were retrospectively analyzed. Their image results and detection rates of mammography, conventional ultrasound and ABVS were analyzed and compared by Nonparametric Cochran's Q test, and the further comparison were performed between groups by McNemar test. Results The cases diagnosed as mass (with or without microcalcifications) by mammography, conventional ultrasound and ABVS were 13 (19%), 22 (33%) and 25 (37%), respectively. The detection rates of conventional ultrasound and ABVS were higher than mammography, and the differences were statistically significant ( χ2=7.11, 10.08, both P 0.05). The cases diagnosed as simple microcalcification or associated with microcalcification by mammography, conventional ultrasound and ABVS were 42 (63%), 30 (45%) and 39 (58%), respectively. The detection rates of simple microcalcification or associated with microcalcifications by mammography and ABVS were higher than conventional ultrasound, and the differences were statistically significant ( χ2=8.64, 5.82, both P 0.05). The detection rates of DCIS by mammography, conventional ultrasound and ABVS were 84%, 70% and 91%. The detection rates of DCIS by mammography and ABVS were higher than conventional ultrasound, and the differences were statistically significant. But the rate between mammography and ABVS showed no statistical significance. Conclusions ABVS can improve the ultronic detection rate of breast DCIS. Its detection rate is similar with mammography performance. Key words: Ductal carcinoma in situ; Ultrasonography; Mammography; Automated