Yutaka Natsuaki1, Philipp Moritz Wagner2, J. Paul Finn2, Randall Kroeker3, Gerhard Laub1
1Siemens Medical Solutions,
Contrast-enhanced MR angiography (ceMRA) is typically performed without ECG gating, and in cardiothoracic applications, variable degrees of blurring may result due to cardiac motion. Alternatively, ceMRA can be acquired with ECG gating, whereby the segmented data acquisition is synchronized with the cardiac cycle and thus minimizes motion-induced blurring. However, conventional gated ceMRA is limited by its acquisition inefficiency, and its spatial resolution and coverage are insufficient for clinical purposes. The current work proposes a novel approach to increasing efficiency and flexibility in ECG-gated ceMRA, and achieves full-coverage high-resolution ECG-gated ceMRA within a single breath hold.