Evaluation of intrathoracic tracheal narrowing in patients with obstructive ventilatory impairment using dynamic chest radiography: A preliminary study
Evaluation of intrathoracic tracheal narrowing in patients with obstructive ventilatory impairment using dynamic chest radiography: A preliminary study
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DOI：
10.1016/j.ejrad.2020.109141
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发表时间：
2020-08-01
影响因子：
3.3
通讯作者：
Watanabe, Yoshiyuki
中科院分区：
文献类型：
--
作者：
Watase, Sayaka;Sonoda, Akinaga;Watanabe, Yoshiyuki
目的：动态胸部X线摄影（DCR）利用连续脉冲透视照射，观察胸部动态结构。然而，其效用在很大程度上仍未确定。本研究的目的是探讨在深呼吸和阻塞性通气障碍之间的关系，使用DCR.Method：12例阻塞性呼吸障碍和28例肺功能正常的参与者进行了深吸气和呼气的一个周期中的DCR。三名对肺功能检查结果不知情的评价者独立测量DCR图像中的气管横径，以确定是否存在肺功能障碍导致的气管直径变化量差异。气管狭窄定义为气管侧径缩小超过30%。将受试者分为狭窄组和非狭窄组，并检查各组是否与肺功能测试值相关。结果：阻塞性肺功能障碍受试者的气管直径与正常受试者相比显著缩小（P
Purpose: Dynamic chest radiography (DCR) can observe the dynamic structure of the chest using continuous pulse fluoroscopy irradiation. However, its usefulness remains largely undetermined. The purpose of this study was to examine the relationship between changes in tracheal diameter during deep breathing and obstructive ventilation disorders using DCR.Method: Twelve participants with obstructive ventilatory impairment and 28 with normal pulmonary function underwent DCR during one cycle of deep inspiration and expiration. Three evaluators blinded to pulmonary function test results independently measured lateral diameters of the trachea in DCR images to determine whether there was a difference in the amount of change in tracheal diameter depending on the presence or absence of pulmonary dysfunction. Tracheal narrowing was defined as a decrease in the lateral tracheal diameter of more than 30 %. Participants were divided into a narrowing group and a non-narrowing group, and it was examined whether each group correlated with values of pulmonary function tests.Results: Tracheal diameter was significantly narrowed in subjects with obstructive ventilatory impairment compared to normal subjects (P