眶腔通道的CT三维重建及临床意义

发布时间：2018-03-08 18:34

本文选题：眶腔通道　切入点：螺旋CT　出处：《中国临床解剖学杂志》2014年05期 　论文类型：期刊论文

【摘要】：目的为眶腔及其周围区域病变相互蔓延的临床诊断提供解剖学依据。方法选取头部无眶腔及眶腔通道病变者100例,在螺旋CT机上以眶耳线(CML)为基线连续扫描,将原始影像数据输入CT三维重建工作站,沿各眶腔通道长轴和垂直于各通道长轴分别进行CT图像重建。观察眶腔通道的位置、形态及毗邻结构,测量其径线。结果眶腔通道的骨性鼻泪管、眶下管、眶下裂、眶上裂和视神经管的长度(或长径)分别为(13.72±1.56)、(24.62±2.03)、(28.16±1.03)、(19.02±2.43)和(6.20±0.44)mm。男、女性骨性鼻泪管的长度和左右径有显著性差异(P0.05),男性骨性鼻泪管的长度大于女性,女性骨性鼻泪管的左右径均大于男性。视神经管眶口、中部和颅口的面积分别为(25.22±4.89)、(18.72±3.79)和(24.88±4.23)mm2,视神经管中部的面积最小,是视神经管狭窄的好发部位。结论 CT三维重建可直观地显示眶腔通道的微细结构,对眶腔及其周围区域恶性肿瘤、炎症等相互蔓延的影像诊断具有重要的临床意义。
[Abstract]:Objective to provide anatomic basis for the clinical diagnosis of the spread of orbital cavity and its surrounding lesions. Methods 100 cases of head lesions without orbital cavity and orbital channel were selected, and CML of orbital auricle was used as baseline continuous scanning on spiral CT. The original image data were input into the CT 3D reconstruction workstation, and the CT images were reconstructed along the long axis of each orbital channel and perpendicular to the long axis of each channel. The position, morphology and adjacent structure of the orbital channel were observed. Results the length (or long diameter) of the nasolacrimal duct, suborbital canal, suborbital fissure, supraorbital fissure and optic canal were 24.62 卤2.03 and 6.20 卤0.44 mm. respectively. There was significant difference in the length and diameter of female bony nasolacrimal duct (P 0.05). The length of male bony nasolacrimal duct was larger than that of female, and the left and right diameters of female bony nasolacrimal duct were larger than that of male. The areas of the middle part and cranial orifice were 25.22 卤4.89 卤18.72 卤3.79) and 24.88 卤4.23 mm ~ (-2), respectively. The area of the middle optic canal was the smallest, which was the predilection site of optic canal stenosis. Conclusion Three-dimensional CT reconstruction can visualize the fine structure of the orbital canal and the malignant tumor in the orbital cavity and its surrounding region. The imaging diagnosis of inflammation is of great clinical significance.
【作者单位】：新乡医学院第三附属医院;新乡医学院人体解剖学教研室;
【基金】：河南省教育厅科技攻关课题(200510472027)
【分类号】：R779.6;R816.97

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