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FIG 2. Underestimation of stenoses.
A, DSA image of the left common carotid artery depicts a proximal moderate stenosis (straight arrow) and an extremely short distal stenosis (curved arrow) of the internal carotid artery.
B, 3D contrast-enhanced MR angiographic MIP image (magnification factor, 2) depicts the moderate proximal stenosis (straight arrow) and a short band of decreased enhancement (curved arrow) without clear definition of a stenosis.
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