Analysis of the clinical characteristics and manifestation of CT and DSA of moyamoya disease

Objective:To discuss the clinical characteristics and the manifestation of CT and DSA of moyamoya disease. Methods:Clinical symptoms, CT findings, and angiographic features of 54 patients with moyamoya disease were analyzed.Results:Of 54 cases, 29 patients had undergone different degree of clinical symptoms of cerebral ischemia before they fall ill, no well-definded symptoms were found in other 25 patients. Intracranial hemorrhage and infarction were detected on CT in 46 and 7 cases respectively. Stenosis or occlusion of internal carotid bifurcation or proximal of anterior cerebral artery or middle artery were depicted in all the patients by DSA, and abnormal vascular network at basal area was also seen in all cases. Collateral circulation vessels were found on ICA or ECA, and the time of cerebral blood flow circulation were prolonged.Conclusion:The symptoms of moyamoya disease were atypical. If temporary cerebral ischemia are suffered frequently and primary hemorrhage in ventricle or infarction in basal area or intracranial are detected by CT in young man, moyamoya disease should been suspected. The examination of DSA could not only verify the diagnosis, but also identify the degree of the disease, which would be helpful to the therapy plan.