上矢状窦撕裂的CT诊断(附9例分析)

目的：分析上矢状窦撕裂的CT表现,讨论本病的CT诊断及其价值。方法：回顾分析经手术证实的9例上矢状窦撕裂的CT片,探讨其CT表现特点,评价其临床价值。结果：9例上矢状窦撕裂,其中5例撕裂位于前段,4例位于中段,血肿集中于撕裂部位,中段撕裂血肿明显较大;CT诊断正确7例。主要CT表现：9例CT扫描均见上矢状窦变形增大,其中4例表现为“带征”,3例“三角征”,2例不规则形;7例硬膜外并硬膜下血肿,血肿位于大脑镰旁,大血肿内见小血肿影。呈血肿“叠加”表现;7例中线部颅盖骨骨折;7例侧脑室下移;5例中线结构居中,4例略偏移。结论：上矢状窦撕裂的CT表现具有一定的特征,CT扫描有助于定位及定性诊断,为临床制订手术方案和确定手术入路提供依据。

CT diagnosis of superior sagittal sinus laceration (analysis of 9 cases)

Objective:To analyze the CT features of superior sagittal sinus laceration (SSSL) and discuss the its CT diagnosis and value.Methods:CT findings of 9 cases surgically proved SSSL were retrospectively analyzed. The distinct CT features of SSSL and its clinic value were evaluated.Results:9 cases lacerated the superior sagittal sinus,of 5 cases located in anterior part of superior sagittal sinus, of 4 cases located in the midst of superior sagittal sinus;7 cases were diagnosed rightly by CT. On CT, malformations and enlargements of superior sagittal sinus were seen in 9 cases,showed "cord sign"(4 cases) and "delta sign"(3 cases) or mimicking enhancement,of 7 cases were seen cranial bone fracture through median dural sinus and epidural subdural mixed hematoma simultaneously,demonstrated"superimposed"appearance; of 7 cases were deformed and pressed lateral ventricle by hematoma;of 5 cases traumatic intracranial hematoma without cerebral falx migration were seen,of 4 cases slight migration.Conclusion:CT scanning can accurately display features of SSSL, which contributes to diagnose the lesion and provides evidence for surgical planning.