High Temporal and Spatial Resolution 3D CE-MRA of the Peripheral Vascualture Using 12-Fold 2D SENSE

Clifton R. Haider¹, James F. Glockner¹, Anthony W. Stanson¹, Casey P. Johnson¹, Stephen J. Riederer¹

In imaging a transient phenomenon such as the passage of a contrast bolus, MR image formation benefits from being temporally compact. Improvements in parallel imaging can therefore improve the efficiency with which contrast is mapped to k-space and decrease the susceptibility of the sequence to temporal blurring and venous contamination. We hypothesize that improved coil configurations can allow for robust 12-fold SENSE-accelerated time-resolved 3D CE-MRA in the peripheral vasculature. We demonstrate high quality 1 mm isotropic resolution time-resolved MR angiograms of the lower legs generated with frame times under 4 sec and image acquisition times under 16 sec.