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. 2015 Sep 15;55(10):796–804. doi: 10.2176/nmc.oa.2015-0044

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© 2015 The Japan Neurosurgical Society

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-nd/4.0/

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Fig. 1. — Representative three-dimensional constructive interference in steady state (A, C) and magnetic resonance (MR) angiography findings (B, D) of a 41-year-old male with severe stenosis of the left middle cerebral artery (A, B) and a 36-year-old female with bilateral moyamoya disease (C, D). A: The outer diameter of the bilateral C1, M1, and A1 is printed. B: MR angiography shows severe stenosis of the left M1 (arrow). C: The outer diameter of the bilateral C1, M1, and A1 is printed. D: On MR angiography, the internal carotid arteries are occluded on both sides, being graded as stage 5.