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首页> 外文期刊>Jornal Brasileiro de Pneumologia >Assessment of regional lung ventilation by electrical impedance tomography in a patient with unilateral bronchial stenosis and a history of tuberculosis
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Assessment of regional lung ventilation by electrical impedance tomography in a patient with unilateral bronchial stenosis and a history of tuberculosis

机译：单侧支气管狭窄且有肺结核病史的患者通过电阻抗断层扫描术评估局部肺通气

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摘要

Bronchial stenosis can impair regional lung ventilation by causing abnormal, asymmetric airflow limitation. Electrical impedance tomography (EIT) is an imaging technique that allows the assessment of regional lung ventilation and therefore complements the functional assessment of the lungs. We report the case of a patient with left unilateral bronchial stenosis and a history of tuberculosis, in whom regional lung ventilation was assessed by EIT. The EIT results were compared with those obtained by ventilation/perfusion radionuclide imaging. The patient was using nasal continuous positive airway pressure (CPAP) for the treatment of obstructive sleep apnea syndrome. Therefore, we studied the effects of postural changes and of the use of nasal CPAP. The EIT revealed heterogeneous distribution of regional lung ventilation, the ventilation being higher in the right lung, and this distribution was influenced by postural changes and CPAP use. The EIT assessment of regional lung ventilation produced results similar to those obtained with the radionuclide imaging technique and had the advantage of providing a dynamic evaluation without radiation exposure.
机译：支气管狭窄会引起异常的不对称气流限制，从而损害局部肺通气。电阻抗断层扫描（EIT）是一项成像技术，可以评估局部肺通气，因此可以补充肺功能评估。我们报告了左单侧支气管狭窄且有肺结核病史的患者，其中通过EIT评估了局部肺通气。将EIT结果与通气/灌注放射性核素成像获得的结果进行比较。该患者使用鼻持续气道正压通气（CPAP）治疗阻塞性睡眠呼吸暂停综合症。因此，我们研究了姿势改变和鼻腔CPAP使用的影响。 EIT显示区域肺通气的分布不均，右肺通气更高，并且这种分布受姿势变化和CPAP使用的影响。对区域肺通气的EIT评估所产生的结果与使用放射性核素成像技术获得的结果相似，并且具有无需放射线即可进行动态评估的优势。

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