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| 1 | A New Method of 3-Dimensional Localization of Intraocular Foreign Bodies Using CT Imaging:A Role of Optic Nerve显示文摘Computed tomography(CT) is considered the most sensitive method for the detection of intraocular foreign bodies(IOFBs). The purpose of this study was to evaluate a new method of 3-dimentional(3D) localization of IOFBs that takes advantage of the anatomical structure of the optic nerve and to assess the clinical outcomes using this new method. Twenty-two trauma patients with IOFBs or suspected IOFBs admitted to our hospital were scanned with multislice CT(MSCT) between July and December 2003. All scanning was performed with a 16-row spiral CT in axial plane using a sequential scanning protocol. During the scanning, the eyeball of the patient was kept stable and was not allowed to rotate internally or externally. Section collimation was set at 16 mm × 0.75 mm. Table feed was 12 mm. Reconstruction index was 0.75 mm. After scanning, the reconstructed images were loaded into a workstation to create the multiplanar reconstruction images with the aid of the 3D software. We compared the localization results with the operative findings. Multiplanar reconstruction images showed IOFBs in all 22 patients. IOFBs occurred in the eyeball of 14 patients, in the wall of the eyeball of 5 patients and in the posterior orbits of 3 patients. Different surgical procedures were designed according to the localization by this new method and all IOFBs were successfully removed. All of these foreign bodies were metallic and the localization of IOFB using MSCT was consistent with that found by operative findings. It was suggested that MSCT is a simple and effective imaging modality for the localization of IOFBs. In our study, we localized the IOFBs more quickly and accurately by taking advantage of the fixed position of the intraocular segment of the optic nerve, and determined the necessary surgical parameters. | 姚琦 吴汉平 熊斌 韩萍 郑传胜 | 2017 | Journal of Huazhong University of Science and Technology(Medical Sciences)2017，37，1： | 1 |
| 2 | 计算机空间定位系统在眼球内异物定位中的实验研究显示文摘目的探讨运用三维造型软件确定眼内异物位置的应用价值。方法兔子10只20眼,行手术放入不同数量铁屑、竹屑和玻璃碎片,应用多层螺旋CT进行扫描,得到的原始数据通过边缘检测提取出轮廓信息,轮廓信息以数据文件形式导入造型软件中,借助软件功能重建眼球三维实体,从而获得眼球的三维立体影像。结果多层螺旋CT扫描共检查出金属异物10颗(100%),非金属异7颗(70%),异物全部位于玻璃体腔内。借助3D-MAX/solidworks造型软件获得较为直观、准确的眼球三维立体影像,能准确地显示眼内异物的位置(眼内深度和时钟位)。结论借助软件功能重建眼球三维实体,从而获得眼球较为直观、准确的三维立体影像。模型生成后确定的异物位置,可为临床眼内异物取出手术提供参考。此项技术临床可推广应用,能产生较好的社会效益。 | 叶茹珊 张宏 梁肖云 黄西萍 | 2010 | 齐齐哈尔医学院学报2010，31，24： | 0 |
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