Ruth P. Lim1, Ryan Avery2, Mary
Bruno2, David Mossa2,
1Radiology , NYU Langone Medical Center, New York, NY, United States; 2Radiology, NYU Langone Medical Center, New York, NY, United States; 3Siemens Healthcare, United States
Competing demands of high spatial resolution and short (breath-hold) acquisition times are challenging for ECG-gated contrast enhanced thoracic MRA. We compare two ECG-gated contrast enhanced MRA techniques, one that employs a standard Cartesian acquisition of one partition per heartbeat, and a recently developed technique that uses a zigzag sampling approach in the ky - kz plane for improved scanning efficiency and co-ordination of contrast timing with the cardiac phase of the acquisition. We describe our initial experience in a clinical population.