螺旋CT三维成像在前床突解剖上的应用

目的探讨螺旋CT三维成像在前床突解剖上的应用,旨在为神经外科手术磨除前床突提供术前影像学数据。方法随机选取无颅脑手术的50例患者(男25例,女25例),进行螺旋CT三维重建,观察及测量前床突,并对其形态分类,观察其变异情况;选取10个成人干颅骨,将螺旋CT三维重建数据与标本测量数据相比较,证实数据的可信度。结果成人干颅骨的标本测量与CT测量资料无明显统计学差异,50例患者CT三维重建显示前床突大小形态具有多样性,其中前床突气化9例,前中床突间形成骨桥5例,前后床突间形成骨桥4例。结论前床突具有高度变异性,前床突气化及骨桥形成存在一定比例,因此前床突术前CT三维成像在指导其周围病变手术时,具有实用价值。

Objective To provide radiologic data before neurosurgical removal anterior clinoid process （ACP）.Methods Anterior clinoid process is observed and measured using spiral computer tomographic scan in axial position and three-dimensional reconstruction in 50 cases of patients without craniocerebral operations （male and female 25 cases）,In addition,compare the measurements of anterior clinoid processes between radiologic data and the sample’s in 10 dry adult skulls.Results There is no significantly statistical differences between radiologic and dry adult skulls measurements.CT three-dimensional reconstruction show that 9 cases ACP pneumatization,5cases bone bridge between the ACP and middle clinoid processes and 4 cases bone bridge between the ACP and posterior clinoid processes were found.Conclusion Anterior clinoid process is highly variable.Pneumatization and bone bridge of ACP exist certain proportion,so three-dimensional reconstruction with spiral computer tomographic is necessary to ACP’s variation before the operation.