Fig. 2
From: Value of vessel wall magnetic resonance imaging in the diagnosis of cerebrovascular diseases
MRA shows remarkable stenosis of the cavernous and supraclenoid parts of both ICA as well as their main branches of both MCA and ACA (A). MR vessel wall imaging demonstrated a remarkable attenuation, narrowing of MCA and ACA [axial pre (B1), and post (B2) contrast] bilaterally, yet no abnormal post-contrast enhancement of the wall and no hemorrhagic nor fatty content; this is going with Moya-Moya disease for a patient who had already done a diagnostic cerebral angiography giving a picture of puff of smoke appearance