论文部分内容阅读
目的 研究正常成人鞍区冠状面 CT断层解剖学特征。 方法 利用全身 CT设备 ,对 16 7例正常成人进行了鞍区冠状面薄层 CT增强扫描 ,层厚 1.5～ 2 mm。 结果 正常垂体高度为 2 .6～ 8.4m m,平均 4.6±2 .1mm ,宽度为 8～ 2 1m m,平均 13.8± 4.1m m ,5 0岁以后垂体高度稍有降低 ;垂体上缘形态以凹陷型居多 (43% )、平坦型次之 (36 % ) ,隆起型较少 (2 1% ) ;2 6 %正常垂体柄有轻度倾斜 ;海绵窦大小、形态变化较大 ,增强后其密度高于垂体 ;鞍底有 5 1%呈凹陷型 ,45 %呈平坦型 ,4%呈隆起型 ,有 5 0例 (30 % )正常鞍底骨质变薄、密度减低。 结论 冠状面薄层 CT扫描可以清晰显示鞍区的解剖结构 ,正常鞍区解剖变异较大 ,须综合观察才能做出正确判断。
Objective To study anatomic features of coronal CT in normal adult sellar area. Methods Thoracic coronal thin-section CT enhanced scanning was performed on 16 7 normal adults with a thickness of 1.5-2 mm using a whole-body CT equipment. Results The height of normal pituitary was 2.6 ~ 8.4mm, the average was 4.6 ± 2.1mm, the width was 8 ~ 21m, average 13.8 ± 4.1mm, and the height of pituitary decreased slightly after 50 years old. The shape of the upper edge of pituitary was concave (43%), flat type (36%), bulging type less (21%); 26% of normal pituitary stalk with mild tilt; cavernous sinus size and shape changes larger, enhanced after its high density In the pituitary, 5 1% of the sella was concave, 45% was flat, 4% was bulge, and 50 cases (30%) of the normal saddle bone became thinner and the density decreased. Conclusion Coronal thin slice CT scan can clearly show the anatomical structure of the saddle area. The anatomical variation in the normal saddle area is quite large, and it must be comprehensively observed to make the correct judgment.