Martínez de Alegría Alonso A, Bermúdez Naveira A, Uceda Navarro D, Domínguez Robla M
Servicio de Radiología, Hospital Clínico Universitario de Santiago, Santiago de Compostela, Spain.
Servicio de Radiología, Hospital Clínico Universitario de Santiago, Santiago de Compostela, Spain.
Radiologia (Engl Ed). 2023 Jul-Aug;65(4):352-361. doi: 10.1016/j.rxeng.2023.01.008. Epub 2023 Jul 12.
Expiratory CT scan is a complementary technique of inspiratory CT that provide valuable physiological information and may be more sensitive to detect air trapping than pul-monary function tests. It is useful in many obstructive airway diseases, including obliterative bronchiolitis, asthma, Swyer-James syndrome, tracheomalacia, hypersensitivity pneumonitis and sarcoidosis. In obliterative bronchiolitis, expiratory CT scan may be the only imaging technique that shows abnormalities in the early phase of disease. In order to obtain a good quality study, we should explain the procedure to the patient, use precise instructions and do some practice before image acquisition. Here we describe strategies to optimize the techni-que and propose an algorithm that help in interpretation of imaging findings in patients with obstructive airway disease.
呼气CT扫描是吸气CT的一种补充技术，可提供有价值的生理信息，并且在检测气体潴留方面可能比肺功能测试更敏感。它在许多阻塞性气道疾病中都很有用，包括闭塞性细支气管炎、哮喘、斯怀尔-詹姆斯综合征、气管软化、过敏性肺炎和结节病。在闭塞性细支气管炎中，呼气CT扫描可能是在疾病早期显示异常的唯一成像技术。为了获得高质量的研究结果，我们应该向患者解释检查过程，使用精确的指导说明，并在图像采集前进行一些练习。在此，我们描述优化该技术的策略，并提出一种有助于解释阻塞性气道疾病患者影像学表现的算法。
