Abstract
C adolinium-enhanced three-dimensional (3D) MR angiography has been advocated as a potential method for evaluation of the vascular system [ 1-3]. Using a 1.5-T scanner with an enhanced gradient system (Signa; General Electric Medical Systems, Milwaukee, WI) that can reach a maximum gradient strength of 2.3 G/cm in 150 isec, we shortened the acquisition time of this sequence so that it can be performed in a single breath-hold [4, 5]. Our pictorial essay illustrates images obtained with this enhanced breath-hold 3D spoiled gradient-echo sequence in patients with normal main and accessory renal arteries (Figs. 1-3), renal artery stenosis (Figs. 4-7), nonstenotic renal vasculopathies (Figs. 8-10), aortic dissection (Fig. 1 1 ), and renal transplants (Fig. I 2).
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