颅内静脉窦血栓形成的影像学诊断

Cerebral Sinovenous Thrombosis──Value of lmaging Diagnosis

报告１１例临床及影像学确诊的颅内静脉窦血栓形成，通过对其病因及临床表现分析，表明口服避孕药及饮酒是本病重要诱发因素，头痛、恶心、呕吐、视乳头水肿和腰穿脑脊液压力增高是其主要临床表现。对头颅ＣＴ扫描、磁共振成像（ＭＲＩ）和全脑血管造影（ＤＳＡ）等影像学检查进行分析和比较表明；ＤＳＡ仍是颅内静脉窦血栓形成不可替代的确诊手段；ＭＲＩ以其高分辨率、多方向扫描及无创伤等优点，已成为一种可靠的、首选的诊断措施；而头颅ＣＴ扫描的诊断价值较小。

ll cases of clinically and radiologically proved cerebral sinovenous thrombosis were reported.The causes and manifestations of the disease were analysed,indicating that oral contraceptive and alcohol were important inducing factors,while headache,nausea,vomiting,papilledema and increased CSF pressure were predominant clinical features. Comparative studies were made among CT scans,MRl and DSA examinations. The authors concluded that DSA remained a gold-standard in diagnosing the disease,MRI was the first choice because of its intrinsic high reso lution and multiplanar scanning capability,while CT scans possessed limited diagnostic value.