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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.

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Keywords

additional affect amputation analyses angiography arterial august baden bypass calf cardiovascular chosen clinical collective combination complete composed considered continuous contrast course covariates criteria cross death degree detect determine diabetes disease electronic endpoints enhanced enlarged especially evaluated evaluation event events examined experienced extracted extremities faculty female findings flow gender green hazard help hyperemia identify impact impacting impacts included inclusion infarct infarcts influence inguinal investigated last latest limb lymph male materials median medical medicine model nodes nuclear numerous occlusion occlusive occurred occurrence open outcome overall patent patient patients pelvis peripheral physiologic powerful presence proportional radiologist radiology record regard respectively risk sectional seems several side significantly starting station statistically statistics status strong studied suffer survival table thigh type variables various vessel vessels whenever years yellow