Abstract #1686

Contrast-enhanced MRA with GRASP outperforms the conventional TWIST in aortic dissection patient cohort

Camilla Giulia Calastra¹, Fabian Haupt¹, Elena Kleban¹, Adrian Huber¹, Daniel Becker ², Hendrik von-Tengg Kobligk¹, and Bernd Jung¹

¹DIPR (Department of Interventional and Pediatric Radiology), Inselspital, Bern, Switzerland, ²Department of Cardiovascular Surgery, Inselspital, Bern, Switzerland

Synopsis

Keywords: Vessels, Cardiovascular, Magnetic Resonance AngiographyThis work compares the application of two magnetic resonance angiography (MRA) sequences on an aortic dissection patient cohort: the conventional cartesian-sampling-based, TWIST sequence, and the new radial-sampling-based GRASP sequence. The 1.5T MRA data from six patients with aortic dissection were assessed qualitatively and quantitatively to investigate overall image quality and spatial and temporal blurring. GRASP outperformed TWIST in temporal SNR, vessel sharpness and reduction in image blurring; streaking artifacts were clearly visible, but did not affect the diagnostic image quality.

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