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Fig. 3B Coronal maximum-intensity-projection images of two patients.
Image of 79-year-old man in 50-mL group after endovascular stent-graft
procedure of abdominal aortic aneurysm shows uniform enhancement throughout
thoracoabdominal-aortoiliac system: top of aortic arch, 349 H; origin of
celiac axis, 330 H; and origin of common iliac artery, 325 H. Administration
of 50 mL of contrast medium followed by 20-mL saline flush diminished
perivenous artifacts generated by pooling of contrast agent in SVC and reduced
high attenuation in pulmonary trunk; SVC (arrow) was 118 H and main
pulmonary artery (arrowhead) was 258 H.