前床突及颈内动脉床突段的多层螺旋CT测量  

MSCT measurement of anterior clinoid process and clinoid segment of internal carotid artery

作　　者：秦将均[1,3] 肖红秀[2] 涂蓉[3] 周晓陆[1] 覃群[1] 汤为[1] 

机构地区：[1]海南省农垦三亚医院放射科,海南三亚572000 [2]海南医学院人文社会科学部 [3]海南医学院附属医院放射科

出　　处：《实用放射学杂志》2014年第5期740-743,共4页Journal of Practical Radiology

基　　金：海南省自然科学基金（310155）。

摘　　要：目的：利用多层螺旋 CT（MSCT）在活体个性化观察前床突及颈内动脉（ICA）虹吸部的解剖关系并分别测量其各种数据,为术中磨除前床突提供影像学信息。方法对100例受检者（200侧）常规进行容积再现（volume rendering,VR）重建颅骨,沿眶截骨平面模拟切除颅盖骨,从头侧于轴位图像上观察前床突及其周围的解剖结构,并测量前床突的全长、中长、基底宽、中宽,于矢状位测量双侧床突段 ICA 的曲线长度。结果100例（200侧）前床突左侧全长（9.82±2.48）mm,基底宽（9.47±1.88）mm；右侧全长（10.41±2.16）mm,基底宽（9.66±2.21）mm。前床突左侧中长（5.03±1.55）mm,中宽（6.19±1.75）mm；右侧中长（5.86±2.48）mm,中宽（6.66±1.51）mm。床突段 ICA 的曲线长度左侧（6.74±2.25）mm；右侧（8.54±3.00）mm。左右两侧前床突全长、基底宽度及中宽数据采用配对样本的 t 检验,结果无统计学意义（P 〉0.05）。中长及床突段 ICA 的曲线长度数据比较的t 检验,结果有统计学意义（P〈0.05）。结论 MSCT 能清楚地显示前床突及 ICA 虹吸部的活体解剖及变异,能为术中磨除前床突提供有用的影像学信息。Objective To observe the anatomy status of the anterior clinoid process （ACP）and the anterior clinoid segment of in-ternal carotid artery （ICA）respectively by multisliced computed tomography （MSCT）,and to provide useful imaging information for ACP removal surgery.Methods A total of 100 patients （200 sides）had volume rendering reconstruction of skull.Cranium was removed along cranio-orbital bone in simulation.Then the anatomical structures of the ACP and its surrounding were observed in cephalad direction.The total length,medium length,basic width,medium width of the ACP and the sagittal view curve length of anterior clinoid segment of the ICA from both sides were measured.Results Total length of left ACP was （9.82±2.48）mm,basal width was （9.47±1.88）mm,medium length was （5.03±1.55）mm,medium width was （6.1 9 ±1.75）mm;for right side total length was （10.41±2.1 6）mm,basal width was （9.66 ±2.21）mm,medium length was （5.86 ±2.48）mm,medium width was （6.66±1.5 1）mm.Left anterior clinoid segment of ICA curve length was （6.74±2.25）mm;right was （8.54±3.00）mm.Paired sample t test showed no significant difference in total length,basal width and medium width of ACP in both sides （P 〉0.05）;while the difference in medium length and curve length of the anterior clinoid segment of ICA were statistically significant respectively （P 〈0.05）.Conclusion MSCT can clearly display the vivisection and variation status of the ACP and the anterior clinoid segment of the ICA and can provide useful imaging information for removal of ACP in operation.

关 键 词：计算机体层成像 前床突 颈内动脉 图像融合 

分 类 号：R814.42[医药卫生—影像医学与核医学] R816.1[医药卫生—放射医学]