Chest X-Ray Features in 130 Patients with Bronchiectasis

<i>Background/Objectives:</i> The prevalence of bronchiectasis is increasing globally, and early detection using chest imaging has been encouraged to improve its prognosis. However, the sensitivity of a chest X-ray as a screening tool remains unclear. This study examined the chest X-ray...

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Main Authors: Hikaru Sawada, Ryohei Kudoh, Atsushi Yokoyama, Akihiko Hagiwara, Kazufumi Hiramatsu, Jun-ichi Kadota, Kosaku Komiya
Format: Article
Language:English
Published: MDPI AG 2024-12-01
Series:Diseases
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Online Access:https://www.mdpi.com/2079-9721/12/12/323
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author Hikaru Sawada
Ryohei Kudoh
Atsushi Yokoyama
Akihiko Hagiwara
Kazufumi Hiramatsu
Jun-ichi Kadota
Kosaku Komiya
author_facet Hikaru Sawada
Ryohei Kudoh
Atsushi Yokoyama
Akihiko Hagiwara
Kazufumi Hiramatsu
Jun-ichi Kadota
Kosaku Komiya
author_sort Hikaru Sawada
collection DOAJ
description <i>Background/Objectives:</i> The prevalence of bronchiectasis is increasing globally, and early detection using chest imaging has been encouraged to improve its prognosis. However, the sensitivity of a chest X-ray as a screening tool remains unclear. This study examined the chest X-ray features predictive of bronchiectasis. <i>Methods:</i> We retrospectively reviewed the chest X-rays of patients with bronchiectasis diagnosed using high-resolution computed tomography who visited our institute from January 2013 to March 2020. Patients with cardiac pacemakers, lung cancer, and interstitial pneumonia, which might bias the detection of bronchiectasis, were excluded. Two respiratory physicians independently determined the presence or absence of potential features reflecting bronchiectasis, including a vague cardiac silhouette on chest X-rays. <i>Results:</i> The study enrolled 130 patients, including 72 women (55.4%), with a mean age of 72 years. The features observed on chest X-rays included granular shadows (88.5%, n = 115), vague cardiac silhouettes (48.5%, n = 64), nodular shadows (45.4%, n = 59), a tram-track appearance (35.4%, n = 46), pleural thickening (26.9%, n = 35), vague diaphragm silhouettes (25.4%, n = 33), and a ring sign (24.6%, n = 32). The kappa values for these features were 0.271, 0.344, 0.646, 0.256, 0.312, 0.514, and 0.376, respectively. <i>Conclusions:</i> Although traditional chest X-ray features believed to reflect bronchiectasis, such as the tram-track appearance or ring sign, were not frequently seen, vague cardiac silhouettes and granular shadows had high positivity rates, indicating their potential utility for bronchiectasis screening. However, the interobserver concordance rates were unsatisfactory.
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spelling doaj-art-0faa7aa4e0ea4a21b3e9e06b7880e2f82025-08-20T02:57:13ZengMDPI AGDiseases2079-97212024-12-01121232310.3390/diseases12120323Chest X-Ray Features in 130 Patients with BronchiectasisHikaru Sawada0Ryohei Kudoh1Atsushi Yokoyama2Akihiko Hagiwara3Kazufumi Hiramatsu4Jun-ichi Kadota5Kosaku Komiya6Respiratory Medicine and Infectious Diseases, Oita University Faculty of Medicine, 1-1 Idaigaoka, Hasama-machi, Yufu, Oita 879-5593, JapanRespiratory Medicine and Infectious Diseases, Oita University Faculty of Medicine, 1-1 Idaigaoka, Hasama-machi, Yufu, Oita 879-5593, JapanRespiratory Medicine and Infectious Diseases, Oita University Faculty of Medicine, 1-1 Idaigaoka, Hasama-machi, Yufu, Oita 879-5593, JapanRespiratory Medicine and Infectious Diseases, Oita University Faculty of Medicine, 1-1 Idaigaoka, Hasama-machi, Yufu, Oita 879-5593, JapanRespiratory Medicine and Infectious Diseases, Oita University Faculty of Medicine, 1-1 Idaigaoka, Hasama-machi, Yufu, Oita 879-5593, JapanRespiratory Medicine and Infectious Diseases, Oita University Faculty of Medicine, 1-1 Idaigaoka, Hasama-machi, Yufu, Oita 879-5593, JapanRespiratory Medicine and Infectious Diseases, Oita University Faculty of Medicine, 1-1 Idaigaoka, Hasama-machi, Yufu, Oita 879-5593, Japan<i>Background/Objectives:</i> The prevalence of bronchiectasis is increasing globally, and early detection using chest imaging has been encouraged to improve its prognosis. However, the sensitivity of a chest X-ray as a screening tool remains unclear. This study examined the chest X-ray features predictive of bronchiectasis. <i>Methods:</i> We retrospectively reviewed the chest X-rays of patients with bronchiectasis diagnosed using high-resolution computed tomography who visited our institute from January 2013 to March 2020. Patients with cardiac pacemakers, lung cancer, and interstitial pneumonia, which might bias the detection of bronchiectasis, were excluded. Two respiratory physicians independently determined the presence or absence of potential features reflecting bronchiectasis, including a vague cardiac silhouette on chest X-rays. <i>Results:</i> The study enrolled 130 patients, including 72 women (55.4%), with a mean age of 72 years. The features observed on chest X-rays included granular shadows (88.5%, n = 115), vague cardiac silhouettes (48.5%, n = 64), nodular shadows (45.4%, n = 59), a tram-track appearance (35.4%, n = 46), pleural thickening (26.9%, n = 35), vague diaphragm silhouettes (25.4%, n = 33), and a ring sign (24.6%, n = 32). The kappa values for these features were 0.271, 0.344, 0.646, 0.256, 0.312, 0.514, and 0.376, respectively. <i>Conclusions:</i> Although traditional chest X-ray features believed to reflect bronchiectasis, such as the tram-track appearance or ring sign, were not frequently seen, vague cardiac silhouettes and granular shadows had high positivity rates, indicating their potential utility for bronchiectasis screening. However, the interobserver concordance rates were unsatisfactory.https://www.mdpi.com/2079-9721/12/12/323bronchiectasispostinfectionnontuberculous mycobacteriumpneumonia
spellingShingle Hikaru Sawada
Ryohei Kudoh
Atsushi Yokoyama
Akihiko Hagiwara
Kazufumi Hiramatsu
Jun-ichi Kadota
Kosaku Komiya
Chest X-Ray Features in 130 Patients with Bronchiectasis
Diseases
bronchiectasis
postinfection
nontuberculous mycobacterium
pneumonia
title Chest X-Ray Features in 130 Patients with Bronchiectasis
title_full Chest X-Ray Features in 130 Patients with Bronchiectasis
title_fullStr Chest X-Ray Features in 130 Patients with Bronchiectasis
title_full_unstemmed Chest X-Ray Features in 130 Patients with Bronchiectasis
title_short Chest X-Ray Features in 130 Patients with Bronchiectasis
title_sort chest x ray features in 130 patients with bronchiectasis
topic bronchiectasis
postinfection
nontuberculous mycobacterium
pneumonia
url https://www.mdpi.com/2079-9721/12/12/323
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