Abstract #1284

Improved Venous Suppression in Non-Contrast MRA with the Spiral Turbo Spin Echo Sequence

Samuel Fielden¹, John P. Mugler, III¹,², Patrick Norton², Christopher Kramer²,³, Craig Meyer¹,²

¹Biomedical Engineering, University of Virginia, Charlottesville, VA, United States; ²Radiology, University of Virginia, Charlottesville, VA, United States; ³Medicine, University of Virginia, Charlottesville, VA, United States

We have previously shown that flow-independent angiography can be performed with TSE-based sequences, as these sequences provide fast T2-weighted volumetric images. In order to achieve better arterial/venous contrast, longer echo spacings can be used to shorten the apparent T2 of venous blood. Here we utilize spiral readouts in a 3D TSE sequence in order to extend echo spacings while maintaining acquisition efficiency in order to produce fast, volumetric, non-subtractive non-contrast peripheral angiograms.