迟发性脑血管痉挛是颅内动脉瘤破裂后产生并发症及致死的一个重要原因。传统的血管造影术可以直接提供受累血管的形态学资料,是明确血管痉挛最为准确可靠的方法,但它是一种有创性检查,对病人会造成一定损伤,不宜反复实施。为此,作者运用磁共振血管成像(MRA)诊断和监测颅内动脉瘤破裂蛛网膜下腔出血后脑血管痉挛,并与血管造影术进行比较。 Delayed cerebral vasospasm is an important cause of complications and death after intracranial aneurysm rupture. Traditional angiography can directly provide information about the morphology of affected blood vessels. It is the most accurate and reliable method for identifying vasospasm. However, it is an invasive test that causes some damage to patients and should not be repeated. To this end, the authors used magnetic resonance angiography (MRA) to diagnose and monitor cerebral vasospasm after intracranial aneurysm rupture of subarachnoid hemorrhage and compared with angiography.