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目的 研究脑血管造影阴性的自发性蛛网膜下腔出血 (SAH)的病因。方法 分析脑血管造影阴性的SAH2 5例。绝大多数均经CT、DSA、MRI检查。结果 2 5例中 ,脊髓动静脉畸形 1例 ,血液病 1例 ,另 2例可能为破裂出血的隐匿型血管畸形或海绵状血管瘤。结论 初次血管造影阴性的SAH的处理及预后与CT上出血的特征有密切关系 ,对于环中脑池蛛网膜下腔出血 (PNSH)应避免重复造影 ,脑脊髓MRI检查对明确病因有一定帮助。
Objective To study the etiology of spontaneous subarachnoid hemorrhage (SAH) negative for cerebrovascular angiography. Methods Five cases of SAH2 negative for cerebrovascular angiography were analyzed. The vast majority of CT, DSA, MRI examination. Results Among the 25 cases, 1 case had spinal cord arteriovenous malformations, 1 case had blood diseases, and the other 2 cases were occult blood vessel malformations or cavernous hemangiomas with ruptured hemorrhage. Conclusions The treatment and prognosis of SAH with negative primary angiography are closely related to the characteristics of hemorrhage on CT. Avoiding duplication of imaging in annular central cerebral veno-subarachnoid hemorrhage (PNSH) should be avoided. MRI of cerebral spinal cord may be helpful for the definite etiology.