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FIG 2. Axial MR images.
A and B, Axial T1-weighted (500/14 [TR/TE]), postcontrast fat-suppressed image (A), and T2-weighted fast spin-echo (4500/100) fat-suppressed image (B), at the same level. Notice lumen dilation with hyperintensity of both EICAs. The left is surrounded by a thick, low-signal rim, representing thrombus along the arterial wall.
C, MIP from TOF sequence source of images on coronal plane. Notice tortuosity of both EICAs above the carotid bifurcation with further fusiform aneurysmal dilation. Notice similar changes on the left vertebral artery. (Proximal portion of the common carotid artery is not seen because of the thickness of slice selected for MIP.)
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