正常成人颅骨多层螺旋CT三维重建表现

目的：探讨正常成人颅骨多层螺旋CT（multi-slice computed tomography,MSCT）三维重建表现。材料和方法：收集2009年5月7月于我科行容积CT数字减影血管造影检查者颅脑资料130例,头颅数据行容积再现（volume render,VR）、最大密度投影（maxi mumintensity projections,MIP）三维重建,观察颅骨解剖;蛛网膜颗粒压迹、血管压迹的表现;颅缝整体形态及闭合情况。结果：本组共检出蛛网膜颗粒压迹27例（20.77%,27/130例）,血管压迹51例（39.23%,51/130例）。颅缝整体形态分3型：普通型（86.15%,112/130例）;②囟门骨型（5.38%,7/130例）;③骨内颅缝型（8.46%,11/130例）。每条颅缝闭合形态分5型：Ⅰ型,完全闭合型（3.0%,16/531条）;Ⅱ型,嵌合型（78.3%,416/531条）;Ⅲ型,缝间骨型（7.0%,37/531条）;Ⅳ型,未完全闭合型（3.6%,19/531条）,颅缝平均宽度1.41mm±0.70mm;Ⅴ型,混合型（8.1%,43/531条）。结论：MSCT三维重建技术显示颅骨解剖结构清晰,VR更好地显示颅骨三维解剖,MIP显示颅缝闭合情况、蛛网膜颗粒压迹、血管压迹更清晰和敏感,颅缝整体形态分3型,闭合状态分5型。

Normal Appearance of 3D Reconstruction of Multi-slice Computed Tomography in Adult skull

Purpose To describe the normal appearances of skull on 3D-reconstruction of Multi-slice CT in adult.Materials and Methods 130 patient data of Volume CT digital subtraction angiography(VCTDSA)with cephalocervical and cephalic vessel that were checked at our hospital from May to July 2009 were analyzed.All of them were subjected to 3D reconstruction of the skull by volume render(VR)and maximum intensity projection(MIP).The anatomy of skull,vascular grooves,pacchionian impressions,the types and closure status ...