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首页> 外文期刊>Pediatric Pulmonology >Evaluation of tracheobronchial anomalies in children using low-dose multidetector CT: report of a 13-year-old boy with a tracheal bronchus and recurrent pulmonary infections.
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Evaluation of tracheobronchial anomalies in children using low-dose multidetector CT: report of a 13-year-old boy with a tracheal bronchus and recurrent pulmonary infections.

机译：低剂量多探测器CT对儿童气管支气管异常的评估：一名13岁男孩患有气管支气管和反复肺部感染的报道。

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Tracheobronchial anomalies in children may be associated with recurrent episodes of pulmonary infections and symptoms of recurrent or persistent airway obstruction. Diagnosis by conventional imaging may be difficult. Multidetector computed tomography (MDCT) offers the possibility to generate a virtual three-dimensional bronchoscopy, thus enabling detailed overview of the tracheobronchial system. We report on a 13-year old boy, admitted to hospital after recurrent episodes of bronchial infections. Functional studies showed airway obstruction with no response to bronchodilators. A chest radiograph was normal. Flexible bronchoscopy revealed tracheobroncho malacia of the distal trachea and the right main bronchus. The ostium of an accessory right-sided tracheal bronchus, which could not be entered by the endoscope, was also detected. MDCT using a low-dose protocol was performed on a four-section scanner (Somatom Volume Zoom, Siemens, Erlangen, Germany). A three-dimensional virtual bronchoscopy based on surface rendering was generated, which confirmed moderate narrowing of the trachea and right main bronchus. Furthermore, an accessory and stenotic tracheal bronchus including poststenotic segments, ventilating parts of the right upper lobe, could be clearly visualized. MDCT can be a valuable instrument in the diagnostic pathway of assessing tracheobronchial anomalies in children, including visualization of poststenotic bronchial structures. The use of low-dose protocols provides adequate image quality to perform virtual bronchoscopy, thus reducing administered radiation to a tolerable amount.
机译：儿童气管支气管异常可能与肺部感染的反复发作和反复或持续的气道阻塞症状有关。通过常规成像的诊断可能很困难。多探测器计算机断层扫描（MDCT）提供了生成虚拟三维支气管镜的可能性，从而能够详细概述气管支气管系统。我们报告了一个13岁男孩，在支气管感染反复发作后入院。功能研究显示气道阻塞对支气管扩张药无反应。胸部X光片正常。柔性支气管镜检查显示远端气管和右主支气管的气管支气管软化症。还检测到内窥镜无法进入的右侧气管支气管旁口。使用低剂量方案的MDCT在四部分扫描仪（Somatom Volume Zoom，西门子，德国埃尔兰根）上进行。生成了基于表面渲染的三维虚拟支气管镜，证实了气管和右主支气管的中等变窄。此外，可以清楚地看到包括后狭窄段，右上叶通气部分在内的附件和狭窄的气管支气管。 MDCT可能是评估儿童气管支气管异常的诊断途径中的重要工具，包括可视化狭窄后支气管结构。低剂量方案的使用可提供足够的图像质量，以执行虚拟支气管镜检查，从而将给药的辐射减少到可容忍的量。

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