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Ligamentous structures in foramen magnum:sectional anatomy,CT and MRI
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- Author:
- No author available
- Journal Title:
- CHINESE JOURNAL OF RADIOLOGY
- Issue:
- 10
- DOI:
- 10.3760/j.issn:1005-1201.2004.10.008
- Key Word:
- 韧带;枕骨大孔;体层摄影术,X线计算机;磁共振成像
Abstract： 目的探讨枕大孔区韧带结构的连续薄层断面形态规律及CT、MRI表现.方法选取经10%甲醛溶液浸泡的正常成人尸体头颈标本6具,全部行CT和MR扫描,其中3例用于冰冻断面标本制作,3例用于生物塑化断面标本制作.对枕大孔区韧带结构的连续断面形态进行观察,并与CT、MR图像对照研究.结果获得层厚3 mm的枕大孔区横断面、冠状面和矢状面连续冰冻断面标本各1套.获得层厚1 mm的枕大孔区横断面、冠状面和矢状面连续塑化薄层断面标本各1套.断面切片能清楚显示枕大孔区各韧带结构(6例均清楚地显示翼状韧带、横韧带、覆膜,寰枕前膜、寰枕后膜、寰枢前韧带分别在2具矢状面标本上清楚地显示),并与CT、MRI有良好的对应关系.结论薄层断面切片能良好显示枕大孔区韧带结构,结合CT和MRI进行对照研究,可深入了解枕大孔区韧带结构的连续薄层断面形态规律.
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