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Abstract #1258

The Number of Patent Calf Vessels in Contrast-Enhanced MRA Significantly Impacts the Patients Survival

Elke Angelika Lassel1, Gina-Lisa Friese1, Lothar R Pilz2, Stefan O Schoenberg1, Henrik J Michaely1

1Department of Clinical Radiology and Nuclear Medicine, University Medical Centre Mannheim, Mannheim, Baden-Wrttemberg, Germany; 2Statistics, Medical Faculty Mannheim at Heidelberg University, Germany

The aim of this study was to identify MRA-based factors that influence the patients outcome, especially the overall survival, the time to infarct and limb amputation. Based on 124 patients with MRA of the lower extremities with at least 1 year follow-up time the impact of different MR-based and clinical parameters on survival and time to the first cardiovascular event were assessed by a Cox proportional hazard model. The only factor with significant impact on overall survival was the number of patent calf vessels (HR=0.688; p=0.0048) while the time to the first cardiovascular event was dependent on various factors.