正常成人纵隔宽度的直接数字化X线与CT的对照研究  

Mediastinal width in normal adults： comparison between digital radiography and topography computer

作　　者：葛永强[1] 张焱[2] 肖刚 

机构地区：[1]河南省新乡市第一人民医院影像科,453000 [2]郑州大学第一附属医院MRI室 [3]新乡市妇幼保健院放射科

出　　处：《中国实用医刊》2011年第21期24-26,共3页Chinese Journal of Practical Medicine

摘　　要：目的研究正常成人纵隔宽度及在直接数字化X线和CT之间的差异。方法从2008年4月至2009年9月对1273例患者的胸片和CT资料进行回顾性分析，把其中胸片和CT表现正常的213例作为统计对象。对同一患者的胸部x线和CT图像分别测量胸锁关节、主动脉弓上和主动脉弓水平的纵隔宽度，测量方法采用电子光标在PACS系统监视器上进行，数据分析采用SPSS统计学软件包。结果在直接数字化X线胸片上，正常成人的纵隔宽度为：胸锁关节水平（43±7）mm，主动脉弓上（44±9）mm，主动脉弓水平（59±8）mm。在相同三个水平的CT测量值分别是：胸锁关节（58±8）mm，主动脉弓上（51±8）mm，主动脉弓（60±9）mm，结果显示两种检查方法之间纵隔宽度比较差异有统计学意义（P〈0．05）。结论纵隔宽度与检查方法有关，正常成人的纵隔宽度在数字化胸片和胸部CT上存在显著性差异。Objective To study mediastinal width in normal adult and compare the values on di- rect digital radiography with topography computer. Methods From Apri. 2008 to Semp. 2009, 1273 cases of chest roentgenograms with direct digital radiography and computed topography scan were reviewed by senior radiologists, and 213 healthy individuals were conducted to determine their mediastinal width and compare their difference with direct digital radiography and computed to- pography scan. The width of mediastinum was measured at these levels： sternoclavicular articulation, supraaortic arch and aortic arch. Results With direct digital radiography, the mediastinal width was （43 ± 7 ） mm, （ 44 ± 9 ） mm, （ 59 ± 8 ）mm respec- tively at stemoelavicular articulation, supraaortic arch and aortic arch, whereas, the value was （58± 8） mm, （5 1 ±8 ）mm, （60 ±9 ）mm respectively with computed topography scan. The results reveal the prominent difference statistically （ P 〈 0.05）. Conclusions The mediastinal width in normal adults is related to examination methods, and the value with computed tomography

关 键 词：数字化摄影术 纵隔 计算机断层 

分 类 号：R816.4[医药卫生—放射医学]