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Abstract #3348

Noncontrast MR Angiography for Comprehensive Assessment of Abdominopelvic Arteries using Quadruple Inversion-Recovery Preconditioning & 3D Balanced Steady-State Free Precession Imaging

Iliyana P. Atanasova1,2, Daniel Kim1, Ruth P. Lim1, Pippa Storey1, Vivian S. Lee1

1New York University, New York, United States; 2Columbia University, New York, United States

A new non-contrast MRA pulse sequence was developed using 4 inversion-recovery (IR) pulses and 3D b-SSFP readout to provide complete coverage from renal to external iliac arteries with excellent background suppression. Respiratory triggered, non-contrast angiograms were obtained in four volunteers and one patient referred for contrast-enhanced MRA. In all subjects, MRAs exhibited excellent arterial conspicuity from the renal to the external iliac arteries with optimal background suppression. Infrarenal aortic atherosclerosis was well-visualized in the patient in good agreement with CE MRA. The new NC MRA pulse sequence provides high spatial resolution arteriograms within clinically feasible scan times of 6 min.