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Contrast-enhanced 3D MR angiography with simultaneous acquisition of spatial harmonics: A pilot study
D K Sodickson1, C A McKenzie, W Li
1Departments of Medicine, Cardiovascular Division, and Radiology, Beth Israel Deaconess Medical Center, Boston, Mass, USA. dsodicks@caregroup.harvard.edu
Abstract:
A partially parallel image acquisition technique, simultaneous acquisition of spatial harmonics, or SMASH, was used to increase the spatial and/or temporal resolution in contrast material-enhanced three-dimensional magnetic resonance angiography of the abdominal aorta and renal arteries. In eight healthy subjects, the breath-hold duration was halved at constant spatial resolution, or the spatial resolution was doubled at fixed breath-hold duration, with a 30%-55% reduction in the signal-to-noise ratio but otherwise preserved or improved image quality.