中国组织工程研究 ›› 2014, Vol. 18 ›› Issue (24): 3840-3844.doi: 10.3969/j.issn.2095-4344.2014.24.012

• 口腔组织构建 oral tissue construction • 上一篇    下一篇

磁共振成像显示下牙槽神经几何的准确性

邓  伟1,黄代营2,陈松龄2,陈井鑫1,廖天安1   

  1. 1海南省人民医院口腔颌面外科,海南省海口市  570001
    2中山大学附属第一医院口腔颌面外科,广东省广州市  510080
  • 修回日期:2014-05-16 出版日期:2014-06-11 发布日期:2014-06-11
  • 通讯作者: 陈松龄,博士,教授,中山大学附属第一医院口腔颌面外科,广东省广州市 510080
  • 作者简介:邓伟,男,1981年生,山东省枣庄市人,汉族,2009年中山大学毕业,博士,主治医师,主要从事颅颌面种植外科及下牙槽神经损伤诊疗的研究。
  • 基金资助:

    国家自然科学基金项目(81360172),课题名称:下牙槽神经、舌神经挤压伤及离断伤的磁共振成像及基础研究

Geometric accuracy of magnetic resonance imaging displaying the inferior alveolar nerve

Deng Wei1, Huang Dai-ying2, Chen Song-ling2, Chen Jing-xin1, Liao Tian-an1   

  1. 1Department of Oral and Maxillofacial Surgery, Hainan Provincial People’s Hospital, Haikou 570001, Hainan Province, China
    2Department of Oral and Maxillofacial Surgery, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, Guangdong Province, China
  • Revised:2014-05-16 Online:2014-06-11 Published:2014-06-11
  • Contact: Chen Song-ling, M.D., Professor, Department of Oral and Maxillofacial Surgery, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, Guangdong Province, China
  • About author:Deng Wei, M.D., Attending physician, Department of Oral and Maxillofacial Surgery, Hainan Provincial People’s Hospital, Haikou 570001, Hainan Province, China
  • Supported by:

    the National Natural Science Foundation of China, No. 81360172

摘要:

背景:MRI弥补了X射线及CT难以显示神经的软组织方面的不足,可以清晰直接显示下牙槽神经。
目的:评价磁共振成像显示下牙槽神经的几何准确性。
方法:新鲜尸体头颅1个去除软组织附丽,MRI、CT扫描获得数据,分别测量下颌两侧第2前磨牙与第1磨牙、第1磨牙与第2磨牙、第2磨牙与第3磨牙之间3个部位下牙槽神经与骨皮质之间距离,利用电锯切开两侧同样位置下颌骨体部,游标卡尺测量神经与骨皮质之间距离,将MRI、CT、游标卡尺测量3种方法所测得的数据进行t检验。
结果与结论:通过3种方法测量18个点骨皮质距离,下牙槽神经距离平均值分别为(4.894±1.692),(4.906±1.715),(4.861±1.718) mm,三者间两两比较差异均无显著性意义(P > 0.05)。提示MRI显示下牙槽神经具有良好的几何准确性,为进一步应用于种植等术前影像学检查提供依据。



中国组织工程研究
杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松组织工程


全文链接:

关键词: 组织构建, 组织工程, 磁共振成像, 下牙槽神经, 种植, 测量, 准确性, 国家自然科学基金

Abstract:

BACKGROUND: MRI makes up for a deficiency of X-ray and CT images in nerve imaging and can display inferior alveolar nerve clearly and directly.
OBJECTIVE: To assess the geometric accuracy of MRI displaying the inferior alveolar nerve.
METHODS: One fresh human cadaver head was scanned by MRI and CT after removing the soft tissue. The distances were measured between the second premolar and the first molar, the first molar and the second molar, the second molar and the third molar. After cutting the bilateral mandible on the same sites with a saw, the distances between inferior alveolar nerve and cortex were measured with a caliper. The data measured by MRI, CT and caliper were statistically analyzed for the t-test.
RESULTS AND CONCLUSION: The average distances measured by the three methods between inferior alveolar nerve and cortex were (4.894±1.692), (4.906±1.715) and (4.861±1.718) mm, respectively. There was no significant difference in the average distance among the three methods (P > 0.05). The geometric accuracy of MRI displaying the inferior alveolar nerve was good. It can provide experimental evidence for MRI application in preoperative imaging such as dental implant.



中国组织工程研究
杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松组织工程


全文链接:

Key words: magnetic resonance imaging, mandibular nerve, odontometry

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