Methods: A phantom, 22 volunteers and 74 patients with various cranial diseases were scanned with three methods, conventional head array ( circularly polarized) Coil, 8-channel array coil and 8-channel array coil with iPAT technique. 方法:运用常规头线圈、8通道头部线圈和8通道头部线圈加iPAT技术三种检查方法扫描水模以及颅脑健康志愿者22例和患各种脑部疾病患者74例。