Moyamoya disease (MMD) is a chronic progressive cerebrovascular disease of unknown etiology. It is characterized by chronic progressive stenosis or occlusion of bilateral internal carotid arteries and abnormal puff vessels at the base of the brain. MMD is one of the important causes of cerebrovascular accident in young and middle-aged people, which leads to about 22% of stroke. With the development of neurosurgery, revascularization can effectively reduce the risk of stroke and other cerebrovascular accidents by increasing cerebral perfusion. Therefore, this project is expected to improve the diagnosis and pretreatment assessment of MMD from the traditional level of symptomatology to the level of brain cognitive function through new imaging methods and clinical approaches. The study of cognitive function changes in follow-up period or after revascularization, which is of great scientific significance for understanding the plasticity of cognitive function under different cerebral perfusion conditions, will also be conducted.
To investigate the evolution of imaging appearances and cognitive function of Moyamoya disease (MMD) and to establish a prognosis evaluation system based on imaging biomarkers in MMD. The study may be helpful to optimize and improve the diagnosis and pretreatment assessment of MMD, and provide an important theoretical supplement to the existing guidelines for the management of MMD.