
Keywords: نسبت نامتقارن; EC-IC bypass; Ischemia; Moyamoya disease; Occipital artery; 123I -IMP; N-isopropyl [123I]-p-iodoamphetamine; 3D; 3-dimensional; AR; Asymmetry ratio; CBF; Cerebral blood flow; CBV; Cerebral blood volume; EC-IC; Extracranial to intracranial; ICA; Internal c