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FIG 3. A, DSA of the left internal carotid artery at 11 months after treatment of a 3-mm aneurysm of the anterior communicating artery. The frontal head view shows a residual neck (arrow) of 2 mm-diameter (class 2).
B, Contrast-enhanced MR angiograph with MIP reconstruction in the frontal plane demonstrates (arrow) a residual neck (class 2) in accordance with DSA.
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