右肺斜裂、水平裂的CT应用解剖  

Applied anatomy of the CT of oblique and horizontal fissure on right lung

作　　者：王佑怀[1] 张在沛[2] 李兴富[1] 汤桂成[1] 李红[2] 

机构地区：[1]三峡大学医学院解剖学教研室,湖北宜昌443003 [2]三峡大学医学院附属医院CT室

出　　处：《中国临床解剖学杂志》2001年第1期43-45,共3页Chinese Journal of Clinical Anatomy

基　　金：湖北省教委99科研重点项目资助!(99A0 39)

摘　　要：目的 :为临床CT显示右肺斜裂下部的影像。为描述肺裂的CT影像特征提供解剖学资料。方法 :在成人右肺标本 45例中 ,取 2 0例在肺门的 4个层面上作常规CT扫描 ,观察其中 12例的CT图像特征 ,并与标本相对照。分离 45例右肺门和肺裂 ,在 4个平面上观察肺裂的出现率和叶间面的形态等。结果 :斜裂在肺门上部平面出现率为 17.8% ,在下叶底段支气管下部平面的出现率为 97.8%、CT显示率为83 .3 % ,斜裂叶间面在第 1、3、4层面 (包括水平裂 )均为带状影 ,在第 2层面为凸向后的弧形带状影 ;斜裂与肺水平轴间的下夹角为 5 7.7°± 7.9°。结论 :对右肺下叶底段支气管下部层面作CT扫描可以显示斜裂下部的影像 ;将诊断床向足侧下倾 32 .3°或将CT架上倾 32 .3°可作CT斜位扫描 ,有助于对两种肺裂的影像进行鉴别。Objective: To provide anatomical basis for clinical CT image and characteristic description of the fissure on right lung.Methods: Of all the 45 adult right lung specimens, 20 specimens were scanned by CT image on four level, and the CT image of 12 specimens were observed and compared with the specimen.The occurrence rate of fissure and morphology of interlobar surface were observed on 45 right lung specimens.Results: The occurrence rate of oblique fissure was 17.8% above the lung hilum, 97.8% at the level of lower lobe, 83.3% by CT image.CT image of oblique fissure in the first, third and fourth slice and horizontal fissure were band like images, but in the second CT slice was curve band like image.The angle between oblique fissure and horizontal axis of the lung was 57.7°±7.9°.Conclusion: The image of the inferior oblique fissure can be showed by the CT scan at the lower level of the basic lobe of right lung.A distal incline of 32.3° can facilitate the identification of lung fissure.

关 键 词：右肺斜裂 右肺水平裂 叶间面 CT 应用解剖 

分 类 号：R816.41[医药卫生—放射医学] R322.35[医药卫生—临床医学]