Chest computed tomography findings among adult Aboriginal Australians with bronchiectasis in the Top End Northern Territory of Australia

IF 2.2 4区医学 Q2 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING Journal of Medical Imaging and Radiation Oncology Pub Date : 2024-06-12 DOI:10.1111/1754-9485.13671

Subash Shanthakumar Heraganahally, Timothy Howarth, Claire Gibbs, Sanjana Heraganahally, Lisa Sorger

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Abstract

Introduction

There is limited evidence in the literature illustrating chest computed tomography (CT) characteristics among adult Aboriginal Australians with bronchiectasis. This retrospective study evaluates the radiological characteristics of bronchiectasis in Aboriginal Australians residing in the Top End, Northern Territory of Australia.

Methods

Patients aged >18 years with chest CT-confirmed bronchiectasis between 2011 and 2020 were included. Demographics and relevant clinical parameters were collected. Alongside confirming bronchiectasis, chest CT reports were assessed for (i) lobar location (ii) unilateral or bilateral involvement and (iii) bronchiectasis type when available.

Results

A total of 459 patients were identified with chest CT-confirmed bronchiectasis, with a median age of 47 years, and 55% were females. Bronchiectasis was predominantly recorded in the left lower lobe (LLL) (73%), followed by the right lower lobe (RLL) (62%) and the left upper lobe (LUL) was least common (22%). Females recorded the right middle lobe (RML) affected significantly more often than males (50 vs. 34%, P = 0.012). Bilateral involvement was common (74%), with the strongest pairwise correlation associated between the right upper lobe (RUL) and LUL (P < 0.001). Cylindrical (50%) and cystic (28%) types were most common. The RML and LLL showed positive correlation with cylindrical and LUL with cystic bronchiectasis. Neither lobar location nor bronchiectasis type showed any significant association with lung function parameters other than RML, Lingula and LUL involvement being associated with better percent predicted values of diffusing capacity for carbon monoxide. There were no significant associations between sputum culture and type or lobar locations of bronchiectasis except for non-Aspergillus fungus culture prevalence was higher with cystic or cylindrical types.

Conclusion

The results of this study may be an avenue to develop CT bronchiectasis severity scale in the future specific for Aboriginal Australians.

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澳大利亚顶端北领地患有支气管扩张症的成年澳大利亚原住民的胸部计算机断层扫描结果。

简介：有关患有支气管扩张症的成年澳大利亚土著居民胸部计算机断层扫描（CT）特征的文献证据有限。这项回顾性研究评估了居住在澳大利亚北领地顶端地区的澳大利亚原住民支气管扩张症的放射学特征：研究纳入了 2011 年至 2020 年期间年龄大于 18 岁、胸部 CT 证实患有支气管扩张症的患者。收集人口统计数据和相关临床参数。在确认支气管扩张的同时，对胸部 CT 报告进行评估：(i) 肺叶位置；(ii) 单侧或双侧受累；(iii) 支气管扩张类型（如有）：共发现 459 名经胸部 CT 证实患有支气管扩张症的患者，中位年龄为 47 岁，55% 为女性。支气管扩张主要发生在左下叶（LLL）（73%），其次是右下叶（RLL）（62%），左上叶（LUL）最少见（22%）。女性右中叶（RML）受累的比例明显高于男性（50% 对 34%，P = 0.012）。双侧受累很常见（74%），右上叶（RUL）和左上叶（LUL）之间的配对相关性最强（P 结论）：这项研究的结果可能是未来开发澳大利亚土著居民专用 CT 支气管扩张严重程度量表的一个途径。

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来源期刊

Journal of Medical Imaging and Radiation Oncology 医学-核医学

CiteScore

3.30

自引率

6.20%

发文量

133

审稿时长

6-12 weeks

期刊介绍： Journal of Medical Imaging and Radiation Oncology (formerly Australasian Radiology) is the official journal of The Royal Australian and New Zealand College of Radiologists, publishing articles of scientific excellence in radiology and radiation oncology. Manuscripts are judged on the basis of their contribution of original data and ideas or interpretation. All articles are peer reviewed.

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