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新一代磁共振成像可反映脑血管痉挛病人脑血液动力学的异常。弥散加权磁共振成像(DWI)可确定脑损伤早期脑缺血区域;灌注加权磁共振成像(HWI)可显示静脉注射造影剂后,相对脑血容量(rCBV)、相对脑血流量(rCBF)及脑组织平均通过时间(tMTT)。HWI可在DW...
A new generation of magnetic resonance imaging can reflect the cerebral hemodynamics of patients with cerebral vasospasm abnormalities. Diffusion-weighted magnetic resonance imaging (DWI) can identify areas of early ischemic brain damage; perfusion-weighted magnetic resonance imaging (HWI) shows the relative cerebral blood volume (rCBV), relative cerebral blood flow Brain tissue mean transit time (tMTT). HWI available in DW ...