磁共振血管成像、虚拟现实技术在蝶骨嵴脑膜瘤术前计划中的应用
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国家自然科学基金(30872675,30901549),上海市科委专项重点基金(08411965100).


Application of magnetic resonance angiography and virtual reality technique in preoperative planning for sphenoid ridge meningioma
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Supported by National Natural Science Foundation of China(30872675,30901549) and Fund from Shanghai Committee of Science and Technology (08411965100).

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    摘要:

    目的 探讨磁共振血管成像、虚拟现实技术在蝶骨嵴脑膜瘤术前计划中的应用。 方法 10例蝶骨嵴脑膜瘤患者术前行头颅CT、MRI和MRA等检查,然后将这些数据输入新加坡Volume Interactions公司研发的Dextroscope术前计划系统,在虚拟现实环境中对肿瘤及其周围组织进行重建等处理,构建出立体的空间三维图像;再利用系统工具对肿瘤及其周围组织进行观察、手术模拟等操作,在术前充分获得肿瘤、颅底骨质及神经、血管等相互关系的信息,制定详细的手术计划,并与术中情况进行对照。 结果 10例患者均成功实现了三维立体虚拟现实影像的重建,按照术前计划进行手术,术中情况与术前模拟基本一致,符合率达100%。10例肿瘤均全切,取得良好效果,术后患者无后遗症。 结论 头颅MRA结合Dextroscope术前计划系统反映肿瘤及其邻近组织的解剖结构信息,为术前制定手术方案提供帮助,有助于提高手术安全性与病灶切除率,改善患者预后。

    Abstract:

    Objective To explore the application of magnetic resonance angiography and virtual reality technique in pre-operative planning for sphenoid ridge meningioma. Methods Ten patients with sphenoid ridge meningiomas were examined by brain CT, MRI and MRA before operation. Then the image data were transferred to the Dextroscope system. The images were reconstructed using the Radiodexter software to display the three dimensional image. The tumor and its adjacent anatomic structures could be viewed and the system tools allowed for simulation of the operation, so the full information of the tumor, basilar texture, and nerves and vessels could be obtained. A pre-operative planning was done and was compared with intra-operation situation. Results The virtual reality images of the 10 cases were successfully conducted, and all the procedures were performed according to the pre-operative planning, with a consistent rate of 100%. Radical resection was achieved in all the 10 patients and there were no sequelea. Conclusion Magnetic resonance angiography and the virtual reality system can provide the information of tumor and its adjacent structures, so it can help the neurosurgeons in planning the details for operation, contributing to operation safety and tumor resection.

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  • 收稿日期:2011-09-14
  • 最后修改日期:2011-10-20
  • 录用日期:2011-10-25
  • 在线发布日期: 2011-11-23
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