论文部分内容阅读
目的分析35例脑静脉窦血栓患者的临床资料及CT、MRI影像学特征,结合文献复习,旨在提高对脑静脉窦血栓的认识,从而早期诊断指导临床及时治疗。方法回顾性分析静脉窦血栓患者的病史,结合患者的临床表现、发病起因,对常规头颅CT及MRI平扫、增强扫描、磁共振静脉血管成像、磁敏感加权成像表现进行系统的归纳分析,总结静脉窦血栓的影像学特征。结果 35例脑静脉窦血栓患者共45处血栓形成,其中上矢状窦血栓形成17处(37.8%),左侧横窦血栓形成6处(13.3%),右侧横窦血栓形成8处(17.8%),左侧乙状窦血栓形成4处(8.9%),右侧乙状窦血栓形成5处(11.1%),直窦血栓形成5处(11.1%)。28例可观察到血栓的直接征象,间接征象包括静脉淤血性脑梗死(24例),出血(8例),磁敏感加权成像上较其他序列更易发现脑内出血灶,磁共振静脉血管成像可见皮层浅静脉增粗、增多;增强扫描可见静脉窦血栓处呈“空三角征”。结论联合应用不同的影像技术可提高对脑静脉窦血栓诊断的准确性,从而指导脑静脉窦血栓的早期诊断及早期治疗,减少病死率、病残率及后遗症的发生。
Objective To analyze the clinical data, CT and MRI features of 35 patients with cerebral venous sinus thrombosis and to review the literatures in order to improve the understanding of cerebral venous sinus thrombosis and to guide early clinical diagnosis and treatment. Methods Retrospective analysis of the history of patients with sinus thrombosis, combined with the clinical manifestations, the causes of onset, conventional cranial CT and MRI plain scan, enhanced scan, magnetic resonance venography, magnetic susceptibility weighted imaging system were summarized and summarized Image characteristics of sinus thrombosis. Results A total of 45 thrombosis occurred in 35 patients with cerebral venous sinus thrombosis, including 17 (37.8%) in upper sagittal sinus thrombosis, 6 (13.3%) in left transverse sinus and 8 17.8%), left sinus sigmoid thrombosis in 4 (8.9%), right sigmoid sinus thrombosis in 5 (11.1%) and straight sinus thrombosis in 5 (11.1%). The direct signs of thrombus were observed in 28 cases. Indirect signs included venous congestion (24 cases) and hemorrhage (8 cases). Cerebral hemorrhage was more easily detected in magnetic resonance weighted imaging than in other sequences. Magnetic resonance venous angiography showed cortical Superficial vein thickening, increased; enhanced scan shows sinus venous thrombosis was “empty triangle sign ”. Conclusion Combined application of different imaging techniques can improve the accuracy of the diagnosis of cerebral venous sinus thrombosis, which can guide the early diagnosis and early treatment of cerebral venous sinus thrombosis and reduce the incidence of mortality, morbidity and complications.