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Fig. 1 —Schematic of k-space filling using contrast-enhanced
timing-robust angiography technique. Random filling of predefined central
circle occurs that allows entire arterial bolus to be mapped to center of
k-space, maximizing contrast resolution. Remainder of k-space is filled during
arteriovenous window in concentric profile order, maximizing venous
suppression. (Fig. 1 courtesy of Koert Bloemers, Philips Medical Systems.)
