| 巩若箴,柳澄,吕京光.原发性颅底凹陷症的CT、CTM、MR特征及检查方法的选择[J].中国医学影像技术,2000,16(4):269~272 |
| 原发性颅底凹陷症的CT、CTM、MR特征及检查方法的选择 |
| A Study on CT, CTM and MR Feature of Basilar Impression and Investigation Program |
| 投稿时间：1999-12-19 |
| DOI： |
| 中文关键词: 枕骨大孔 畸形 磁共振成像 X 线计算机 |
| 英文关键词:Foramen magnum Abnormalities Magnetic resonance imaging X-ray computed |
| 基金项目: |
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| 摘要点击次数: 2330 |
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| 中文摘要: |
| 目的 探讨原发性颅底凹陷症的影像学表现及最佳检查程序。方法 观察平片、CT、CTM、MR 表现,比
较各种检查方法 在显示该病的骨关节改变、神经组织受压情况及各种合并症的优势。结果 CT 在显示骨结构变化
方面优于平片及MR ,CT 骨测量的准确性(100 %) 高于平片(75 %) ;各种影像检查方法在显示寰枢椎脱位方面无差
异;CTM、MR 在显示延脑的形态及受压程度方面优于常规CT ,CTM(20/ 20 ,100 %) ,MR (27/ 27 ,100 %) ,常规CT
(15/ 78 ,19 %) ;5 例MR + CTM 检查者3 例合并脊髓空洞症,MR 全部检出,CTM 仅检出1 例。结论 认识颅底凹
陷症的CT、CTM、MR 表现将有助于做出准确、全面的诊断和选择恰当的检查程序,对术前选择手术方式具有很高
的价值。 |
| 英文摘要: |
| Objective To investigate the CT , CTM and MR features of basilar impression (BI) and find the best investigation program. Methods The CT , CTM and MR sign of BI were observed , and the ability of CT , CTM and MR to
show the pathologic changes of bone and joint , ligament , neurotissue , and other accompanying disease were compared. Results CT is superior to simple X-ray film and MR in showing bony structures. For accuracy of diagnosis of BI , CT
(100 %) is superior to simple X-ray film (75 % , P < 0.5) . For showing the compression of medulla oblongata , either CTM
(20/ 20 , 100 %) or MR (27/ 27 ,100 %) is superior to CT (15/ 78 , 19 % P < 0.01) . Heowever , for showing atlanto-axial
subluxation , all the methods above were the same. In 5 cases , in which both MR and CTM were performed , syringomyelia
was present on MR in 3 cases and on CTM only in one. Conclusion The recognition of CT , CTM and MR features of BI
is helpful in making accurate and comprebensive diagnosis , and working out the proper investigation and therapeutic plan. |
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