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Fig. 5A. 39-year-old healthy man who underwent unenhanced MR
angiography performed with breath-hold ECG-triggered three-dimensional
half-Fourier fast spin-echo sequence using selective inversion-recovery
tagging pulse (TAG-C) to suppress signal flow from both superior mesenteric
and splenic veins into portal vein (same subject as in Fig.
1A,1B,1C).
Maximum-intensity-projection image shows entire signal reduction
(arrow) in main portal vein. Compare with
Figure 2A.