Abstract #4465

Pre-Operative Perforator Flap MRA for Autologous Breast Reconstruction

Nanda Deepa Thimmappa¹, Silvina P. Dutruel¹, Mengchao Pei¹, Joshua L. Levine², Julie Vasile³, David Greenspun³, Constance Chen³, Christina Rhode⁴, Christina Y. Ahn⁵, Robert Allen³, Martin R. Prince¹

¹Radiology, Weill Cornell Medical College, New York, NY, United States; ²Plastic surgery, The Center for the Advancement of Breast Reconstruction at NYEE, New York, NY, United States; ³Plastic & Reconstructive Surgery, New York, NY, United States; ⁴NewYork-Presbyterian Hospital/Columbia, New York, NY, United States; ⁵Plastic surgery, NYU Langone Medical Center, New York, NY, United States

This retrospective analysis explores the accuracy of MRA mapping of perforator vessels for autologous breast reconstruction finding MRA to be accurate within 1 cm in all 107 patients. With pre-operative MRA, the flap necrosis rate decreased to 3% compared to an historical average of 14% in the literature. Importantly MR also detected occult metastatic disease in 4 patients. Finally, an automated method of calculating perforator coordinates is presented which eliminated typographical errors associated with manual reporting.