| 巩若箴,周存升,柳澄.原发性颅底凹陷症的CT-病理再研究[J].中国医学影像技术,1997,13(4):305~307 |
| 原发性颅底凹陷症的CT-病理再研究 |
| Investigation of the Mechanism of the Basilar Impression CT |
| 投稿时间：1996-12-07 |
| DOI： |
| 中文关键词: 枕大孔 寰枕关节 CT扫描 |
| 英文关键词:For amenmagnum Atlanto-axial joint X-ray computed to mography |
| 基金项目: |
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| 摘要点击次数: 1932 |
| 全文下载次数: 670 |
| 中文摘要: |
| 目的:探讨颅底凹陷症及颅底凹陷症合并寰枕融合畸形的病理机制。资料与方法:本文分析72例颅底凹陷症及100例正常人的CT表现。结果:病理组单纯颅底凹陷症29例，伴寰枕融合者43例，寰枕高度小于31mm者32例，其中寰椎发育不良短小者13例，枕骨髁发育不良短小者24例，二者同时存在者6例；寰枕高度大于31mm者11例。寰枢椎脱位18例，其中枕骨髁发育不良短小者2例，合并寰椎发育不良短小者15例，仅一例脱位甚轻者为单纯颅底凹陷症。横韧带断裂11例，全部合并寰椎发育不良短小，齿状突凸入枕大孔者9例，均合并寰椎发育不良。结论:作者认为:单纯颅底凹陷症及颅底凹陷症合并枕骨髁发育不良的主要病理改变为延、颈髓屈曲后弓并与小脑扁桃体相互挤压。 |
| 英文摘要: |
| Purpose:Study the mechanism of the Basilar Impression and Basilar impression accompany by agenesis of atlas.Materical and methods:72 patients of the Basilar Impression and 100 no rmal persons were studerted.read films with double blind method.Results:T he basilar Impression were found in 29 patients and the Basilar impression accompany by occipit alization were in 43 patients.Basilar impression accompany by agenesis of atlasin 13 patients.Basilar impression accompany by agenesis of occipital condyle in 24 patients.Dislocation of atlas were found in 18 patients.it occur in 2 patients with agenesis of occipital of condy and occured in 15 patients.Disrupture were found in 11 patients with agenesis of atlas.The dens protruding into foramen magnum in 9 patients with agenesis of atlas.Conclusion:The author ssugg ested that the main mechanism of the basilar impression is over bending of medulla oblonga taand cervical cord,and pressing each ot her with cerebellar to nsil.The main mechanism of the basilar impression accompany by agenesis of atlas is pressing by the dens and cerebellartonsil directly. |
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