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Fig. 1A —Diagram illustrates technique used for optimized background suppression, and graph shows acceptable contrast-to-noise ratios (CNRs) were obtained. Schematic diagram illustrates magnetization prepared steady-state free precession (SSFP) technique for intraarterial near-real-time contrast-enhanced MRI. To gain sufficient background suppression and enhanced T1 weighting, nonselective excitation pulse of 130° and frequency-selective fat-saturation pulse were inserted between consecutive 2D projection acquisitions.