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Abstract #1276

A Comparison Between Ankle-Brachial Index & Quiescent-Interval Single Shot Non-Enhanced MRA for the Evaluation of Hemodynamically-Significant Peripheral Arterial Disease

Emily V. M. Ward1,2, Asad a Usman2, Philip a Hodnett3, James C. Carr2, Robert R. Edelman1

1Department of Radiology, Northshore University HealthSystem, Evanston Hospital, Chicago, IL, United States; 2Department of Radiology, Northwestern Memorial Hospital, Chicago, IL, United States; 3Department of Radiology, NYU Langone Center, New York, United States

Our objective was to determine whether a rapid, non-contrast MRA technique might provide superior accuracy to ABI and reduce the need for additional imaging procedures prior to a revascularization procedure. Using CE-MRA as the reference standard, the sensitivity and specificity of ABI and non contrast QISS MRA for 50% or greater stenosis or occlusion was determined.