Monday, November 26 | 3:00 p.m.-3:10 p.m. | SSE01-01 | Arie Crown Theater
Preoperative MRI decreases re-excision rates, with no significant difference in mastectomy rates or cancer detection, according to a study to be presented on Monday afternoon by researchers from Emory University.
Dr. Bhavika Patel and colleagues constructed a study that included a control group of 163 breast cancer patients who did not receive a preoperative breast MRI because the modality wasn't yet available (from 2002 to 2005) and a group of 163 patients who did (2006 to 2009).
The difference in mastectomy rates for the pre- and post-MRI populations was not statistically significant, according to Patel and colleagues, but the difference was significant for re-excision rates. Women in the pre-MRI era were 4.33 times more likely to undergo re-excision than those in the post-MRI era (p < 0.0001), and women who had preoperative MRI were more likely to have negative margins or close margins.
