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Fig. 3C. —80-year-old woman referred for MR imaging with claudication. Sagittal curved reconstruction of subtracted, volume-rendered, contrast-enhanced 3D MR angiographic data (4.6/1.8, 25° flip angle) obtained through level of borderline lesion of interest (straight arrow) shows second plaque in posterior aorta (curved arrow), just inferior to origin of superior mesenteric artery (s), that is not seen on frontal views on MR angiography or digital subtraction angiography. Multiplanar reformatting capabilities of 3D MR imaging methods can improve detection of aortic plaques in anterior or posterior wall that can easily be overlooked on digital subtraction angiography.