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通过非侵袭性的方法观察中枢神经系统血管结构一直是影像技术关注的焦点。自上世纪90年代中期以来,磁共振血管成像(magneticresonance angiography,MRA)和CT血管造影成像(computedtomo graphicangiography,CTA)技术已经在挑战传统的血管造影术。在血管性疾病诊断的许多方面,血
Observation of the central nervous system vascular structure by non-invasive methods has been the focus of imaging technology. Magnetic resonance angiography (MRA) and computed tomography (CTA) techniques have challenged traditional angiography since the mid-1990s. In many aspects of the diagnosis of vascular disease, blood