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. Ward^1,2, 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.