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FIG 1. A 54-year-old woman with autosomal dominant polycystic kidney disease.
A and B, 1.5-T (A) and 3.0-T (B) TOF collapsed images. The distal middle cerebral artery branches are better visualized on the 3.0T MR angiogram.
C and D, Subvolume image of 1.5-T TOF MR angiogram (C) demonstrates a 3-mm superior cerebellar artery aneurysm (arrow). 3.0-T TOF MR angiogram (D) depicts the aneurysm (arrow) and the distal posterior cerebral artery branches better than the 1.5-T TOF MR angiogram.
E and F, Source images of the 1.5-T (E) and 3.0-T (F) MR angiograms. The superior signal intensity and spatial resolution of the 3.0-T examination allows visualization of temporal lobe cortex and vermis of the cerebellum.
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