Boyaci Nurefsan, Sen Dokumaci Dilek, Karakas Ekrem, Yalcin Funda, Oney Kurnaz Ayse Gul
Department of Radiology, Harran University Medical School, Şanlıurfa, Turkey.
Diagn Interv Radiol. 2015 Jan-Feb;21(1):42-6. doi: 10.5152/dir.2014.14152.
We aimed to determine the prevalence of paratracheal air cysts (PTACs) and the relationship of PTACs with emphysema and bronchiectasis through retrospective analysis of multidetector computed tomography (MDCT) findings.
MDCT findings of 1027 consecutive patients who underwent routine thorax examination between January 2012 and January 2013 were evaluated retrospectively for the presence of PTACs. Localization of the PTACs, as well as their size, shape, and relationship with the trachea were examined. Presence of emphysema and bronchiectasis was recorded, and bronchiectasis severity index was calculated when present. We randomly selected 80 patients who had no visible PTACs as the control group. The findings of patients with and without PTACs were compared.
PTACs were determined in 82 of 1027 patients (8%), in 8.8% of females and 7.3% of males. The presence of PTACs was determined to be independent of gender (P = 0.361). Eighty-one PTACs (98.8%) were located in the right side of the trachea and 56.1% had a tracheal connection. The presence of PTACs significantly correlated with the presence and severity of bronchiectasis (P = 0.001 and P = 0.005 respectively). There was no significant relationship between the presence of PTACs and the presence of emphysema on CT images (P = 0.125).
The prevalence of PTACs was determined as 8% in this study. There was significant association between PTACs and bronchiectasis.
我们旨在通过回顾性分析多排螺旋计算机断层扫描(MDCT)结果,确定气管旁气囊(PTACs)的患病率以及PTACs与肺气肿和支气管扩张的关系。
回顾性评估2012年1月至2013年1月期间连续接受常规胸部检查的1027例患者的MDCT结果,以确定是否存在PTACs。检查PTACs的定位及其大小、形状以及与气管的关系。记录肺气肿和支气管扩张的存在情况,存在支气管扩张时计算支气管扩张严重程度指数。我们随机选择80例无可见PTACs的患者作为对照组。比较有和没有PTACs的患者的检查结果。
1027例患者中有82例(8%)发现有PTACs,女性患病率为8.8%,男性为7.3%。PTACs的存在与性别无关(P = 0.361)。81个PTACs(98.8%)位于气管右侧,56.1%与气管相连。PTACs的存在与支气管扩张的存在和严重程度显著相关(分别为P = 0.001和P = 0.005)。在CT图像上,PTACs的存在与肺气肿的存在之间无显著关系(P = 0.125)。
本研究中PTACs的患病率确定为8%。PTACs与支气管扩张之间存在显著关联。