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Figure 2 Schematic of pulse sequences for three-dimensional (3D) scout scanning (Scout Scan) and high resolution 3D magnetic resonance (MR) angiography (HR-Scan), based on prospective navigator gating and real-time motion tracking. The elements of the sequence (T2-Prepulse, saturation prepulse [REST], navigator, fat saturation prepulse [FAT SAT] and the 3D imaging sequence) are shown in temporal relationship to the electrocardiogram and trigger delay.