CAJ | 학술논문

目的探讨日本大耳白兔气管和主支气管解剖径线CT测量的窗位与窗宽选择,为气道支架动物实验奠定基础.方法多层螺旋CT扫描30只成年健康日本大耳白兔的胸部,分别常规肺窗、纵隔窗和特殊的脂肪窗测量气管胸段前后径,左右径、左右主支气管前后径.比较不同窗宽窗位下气管壁显示以及测量数据与解剖数据之间的差异.结果肺窗气管壁均清晰显示,但测量的结果偏小;纵隔窗气管壁显示模糊,测量的结果偏大;而脂肪窗气管壁显示均匀,测量的数据比较接近实际气管直径的解剖参数.结论多层螺旋CT测定日本大耳白兔气管左右径和前后径应选择脂肪窗为佳.有助于为人相关气管和支气管定制气道支架确定最佳的窗宽和窗位.
목적 탐토일본대이백토기관화주지기관해부경선CT측량적창위여창관선택,위기도지가동물실험전정기출.방법 다층라선CT소묘30지성년건강일본대이백토적흉부,분별상규폐창、종격창화특수적지방창측량기관흉단전후경,좌우경、좌우주지기관전후경.비교불동창관창위하기관벽현시이급측량수거여해부수거지간적차이.결과 폐창기관벽균청석현시,단측량적결과편소;종격창기관벽현시모호,측량적결과편대;이지방창기관벽현시균균,측량적수거비교접근실제기관직경적해부삼수.결론 다층라선CT측정일본대이백토기관좌우경화전후경응선택지방창위가.유조우위인상관기관화지기관정제기도지가학정최가적창관화창위.
Objective To investigate the optimal window width and window level for measuring the airway dimensions with spiral CT scan in Japanese white big-ear rabbits so as to lay the foundation for airway stenting in animal experiments. Methods Multi-slice spiral CT scanning of cervico-thoracic region was performed in 30 healthy adult Japanese white big-ear rabbits, the anteroposterior and transversal diameter of the thoracic trachea, the anteroposterior diameter of the right and left bronchus were measured with lung window, mediastinum window and special fat window separately. The revealing rate of the tracheal wall and the measuring results in different windows and levels were recorded and compared with the anatomical data. The differences of the relevant data were statistically analyzed. Results With lung window, the tracheal wall was well demonstrated, but the relevant data were smaller than that with mediastinum window. With mediastinum window, the data were bigger and the tracheal wall border appeared blurred. The results obtained with fat window were close to the actual anatomical data. Conclusion For accurately measuring the anteroposterior and transversal diameter of the thoracic trachea in Japanese white big-ear rabbits with multi-slice spiral CT scan, fat window should be adopted, which is helpful for the preparation of tracheal and bronchial stents.