摘要
目的 研究剑鞘气管与慢性阻塞性肺疾病 (COPD)之间的关系。材料与方法 搜集 1996～ 1998年有剑鞘气管和COPD的患者 70例。胸部轴位CT用 10mm层厚连续扫描。在主动脉弓上方 10mm层面测量气管的内冠状径和内矢状径。剑鞘形状的程度用内冠状径与内矢状径的比率 (气管指数 )来表示。结果 剑鞘气管 70例 ,气管内冠状径的长度范围是 7～ 18mm ,平均 10 .5mm ,内矢状径的长度范围是 15～ 3 1mm ,平均 2 0 .5mm ,气管指数的范围是 0 .40～ 0 .60 ,平均 0 .5 3。剑鞘气管与COPD之间有密切关系。结论 剑鞘气管是较重的COPD的标志。剑鞘气管的形成是由于慢性咳嗽所致气管软骨环的损伤、重塑型和营养不良性骨化。剑鞘气管征的价值有两点 :( 1)有助于COPD的诊断 ;( 2 )避免错误地认为气管内冠状径的狭窄是由于纵隔肿块所致。
Objective To investigate the relationship between saber sheath trachea and chronic obstructive pulmonary disease (COPD).Materials and Methods Seventy patients with both saber sheath trachea and COPD were collected during the period of 1996～1998. Contiguous 10mm slice axial CT scans of the chest were performed in all patients. The internal coronal and sagittal diameters of the trachea were measured at the level of 1cm above the aortic arch. The distorted degree or saber sheath shaping was expressed by the ratio of the internal coronal diameter to the sagittal diameter (trachea index).Results The internal coronal diameter ranged from 7mm to 18mm, with an average of 10.5mm, while the internal sagittal diameter ranged from 15mm to 31mm, with an average of 20.5mm. The tracheal index was 0.40～0.60, average 0.53. A close relationship between saber sheath trachea and COPD was found.Conclusion Saber sheath trachea is a sign of rather severe COPD. The formation of saber sheath trachea is caused by the injury of the tracheal cartilage due to chronic coughing, resulting in remodeling and dystrophic ossification of the cartilage. Saber sheath trachea is a helpful sign for the diagnosis of COPD. Being mistaken for a mediastinal mass can be avoided if one is aware of this sign.
出处
《临床放射学杂志》
CSCD
北大核心
2000年第2期90-92,共3页
Journal of Clinical Radiology
关键词
剑鞘气管
阻塞性肺疾病
CT
Saber-sheath trachea Chronic obstructive pulmonary disease Tomography,X-ray computed
