Abstract #1273

Comparison of IVD-HYCR Sampling-Reconstruction with Clinical View-Shared MRA and DSA in Peripheral Vasculature

Mahdi S. Rahimi¹, Kang Wang², Lauren A. Keith³, James H. Holmes², Jean H. Brittain², Harald J. Kramer⁴, Scott B. Reeder,³⁴, Frank R. Korosec³,⁴

¹Biomedical Engineering, University of Wisconsin Madison, Madison, WI, United States; ²Global Applied Science Lab, GE Healthcare, Madison, WI, United States; ³Medical Physics, University of Wisconsin Madison, Madison, WI, United States; ⁴Radiology, University of Wisconsin Madison, Madison, WI, United States

Peripheral vascular disease is one of the leading causes of disabilities in the United States. Despite recent advances in contrast enhanced MR angiography, new techniques for better diagnosis and monitoring of the disease are of interest. Patients with PVD were scanned using an undersampled Interleaved Variable Density (IVD) sampling pattern and a constrained reconstruction algorithm (HYCR), and images were compared with X-Ray Digital Subtraction Angiography (DSA). Optimized IVD-HYCR technique shows higher spatial and temporal resolutions and superior temporal behavior compared to existing clinical view-sharing methods and the images agree well with DSA.