Abstract
We retrospectively evaluated whether multi-detector row computed tomography (MDCT) could contribute to the early detection of contralateral breast cancer in women with a diagnosis of breast cancer and no suspicious lesions on a mammogram or an ultrasonogram of the contralateral breast. A total of 518 women with newly diagnosed unilateral breast cancer underwent MDCT. Multi-detector row CT was performed using a 16-detector row CT scanner set for 2-mm collimation, 120 kilovolt (peak), and 180 mA. Axial images of the contralateral breast were evaluated. Four hundred fifty-nine women were eligible for this study. There were suspicious malignant lesions only on MDCT in 21. Multi-detector row CT contributed to the diagnosis of contralateral occult breast cancer in 12 women (2.6%), including 1 in whom breast cancer was later diagnosed at another institution. Multi-detector row CT has a potential role in detecting contralateral breast cancer in women who are at high risk.
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