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Abstract #1203

Reprojected Line Scan Phase Contrast MRA of Peripheral Arterial Disease

Robert R. Edelman1,2, Erik Offerman, Christopher Glielmi3, Eugene Dunkle, Navyash Gupta, Ioannis Koktzoglou,4

1Radiology, NorthShore University HealthSystem, Evanston, IL, United States; 2Radiology, Northwestern University, Chicago, IL, United States; 3Siemens Healthcare; 4Radiology, University of Chicago, Chicago, IL, United States

Hemodynamically significant peripheral arterial disease (PAD) can cause debilitating symptoms. Relatively long scan times preclude applying standard phase contrast technique across the entire peripheral vascular territory. We optimized a reprojected line scan PC (rLSPC) technique and tested whether it could be used to evaluate flow patterns throughout the peripheral vascular system within practical scan times. Strong agreement between rLSPC and 2D PC was obtained for mean arterial velocity and time to peak flow. The technique appears capable of providing at least a qualitative display of normal and abnormal flow patterns throughout the peripheral vascular territory within practically useful scan times.