{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,9]],"date-time":"2025-10-09T00:36:44Z","timestamp":1759970204682,"version":"build-2065373602"},"reference-count":36,"publisher":"MDPI AG","issue":"1","license":[{"start":{"date-parts":[[2025,1,4]],"date-time":"2025-01-04T00:00:00Z","timestamp":1735948800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Diagnostics"],"abstract":"<jats:p>Objectives: To determine the association between airflow limitation and the quantification of lung attenuation in computed tomography (CT) in adult patients with cystic fibrosis (CF). Methods: A cross-sectional study in a single center between January 2013 and December 2018 in adult patients with stable CF. We collected clinical data and the results of spirometry and plethysmography. A chest CT at inspiration and expiration, using a specific software that automatically measured the lung attenuation, was performed. Results: In total, 73 patients (63% males) were included. The mean age was 31.6 \u00b1 12.3 years and the FEV1 was 67.8 \u00b1 25.9% pred. An airflow limitation was found in 63%, the mean residual volume was 159.9% pred, and air trapping was observed in 50 (87.7%) of the patients. The patients with airflow limitations showed a higher bulla index and a percentage of lung voxels in the range of emphysema. The FEV1 and the FEV1\/FVC correlated with the percentage of the lungs at a high attenuation value (HAV), the range of emphysema, and the bulla index at inspiration, as well as the mean lung density at expiration and the inspiratory\u2013expiratory variation of the mean lung density (MLDi-e). Finally, in the multivariate model, the MLDi-e and the HAV at inspiration were associated with airflow limitations. Conclusions: The measurements obtained from the automated quantification of lung parenchymal attenuation predicts airflow limitation in CF.<\/jats:p>","DOI":"10.3390\/diagnostics15010107","type":"journal-article","created":{"date-parts":[[2025,1,6]],"date-time":"2025-01-06T04:37:10Z","timestamp":1736138230000},"page":"107","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Association Between Lung Parenchymal Attenuation in Computed Tomography and Airflow Limitation in Adults with Cystic Fibrosis"],"prefix":"10.3390","volume":"15","author":[{"given":"Luc\u00eda","family":"Esteban Baloira","sequence":"first","affiliation":[{"name":"Servicio de Neumolog\u00eda, Hospital Universitario La Paz, IdiPAZ, CIBERES, Universidad Aut\u00f3noma de Madrid, 28046 Madrid, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ester","family":"Zamarr\u00f3n de Lucas","sequence":"additional","affiliation":[{"name":"Servicio de Neumolog\u00eda, Hospital Universitario La Paz, IdiPAZ, CIBERES, Universidad Aut\u00f3noma de Madrid, 28046 Madrid, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Carlos Carpio","family":"Segura","sequence":"additional","affiliation":[{"name":"Servicio de Neumolog\u00eda, Hospital Universitario La Paz, IdiPAZ, CIBERES, Universidad Aut\u00f3noma de Madrid, 28046 Madrid, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Macarena","family":"Ler\u00edn Baratas","sequence":"additional","affiliation":[{"name":"Servicio de Neumolog\u00eda, Hospital Universitario La Paz, IdiPAZ, CIBERES, Universidad Aut\u00f3noma de Madrid, 28046 Madrid, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2357-3755","authenticated-orcid":false,"given":"Mar\u00eda","family":"Fern\u00e1ndez Velilla","sequence":"additional","affiliation":[{"name":"Servicio de Radiodiagn\u00f3stico, Hospital Universitario La Paz, IdiPAZ, Universidad Aut\u00f3noma de Madrid, 28046 Madrid, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mar\u00eda Isabel","family":"Torres S\u00e1nchez","sequence":"additional","affiliation":[{"name":"Servicio de Radiodiagn\u00f3stico, Hospital Universitario La Paz, IdiPAZ, Universidad Aut\u00f3noma de Madrid, 28046 Madrid, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1454-3693","authenticated-orcid":false,"given":"Inmaculada","family":"Pinilla Fern\u00e1ndez","sequence":"additional","affiliation":[{"name":"Servicio de Radiodiagn\u00f3stico, Hospital Universitario La Paz, IdiPAZ, Universidad Aut\u00f3noma de Madrid, 28046 Madrid, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2459-3624","authenticated-orcid":false,"given":"Pablo","family":"Mariscal Aguilar","sequence":"additional","affiliation":[{"name":"Servicio de Neumolog\u00eda, Hospital Universitario La Paz, IdiPAZ, CIBERES, Universidad Aut\u00f3noma de Madrid, 28046 Madrid, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Rodolfo","family":"\u00c1lvarez-Sala Walther","sequence":"additional","affiliation":[{"name":"Servicio de Neumolog\u00eda, Hospital Universitario La Paz, IdiPAZ, CIBERES, Universidad Aut\u00f3noma de Madrid, 28046 Madrid, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5545-6529","authenticated-orcid":false,"given":"Concepci\u00f3n","family":"Prados S\u00e1nchez","sequence":"additional","affiliation":[{"name":"Servicio de Neumolog\u00eda, Hospital Universitario La Paz, IdiPAZ, CIBERES, Universidad Aut\u00f3noma de Madrid, 28046 Madrid, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2025,1,4]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"2519","DOI":"10.1016\/S0140-6736(16)00576-6","article-title":"Cystic fibrosis","volume":"388","author":"Elborn","year":"2016","journal-title":"Lancet"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"1693","DOI":"10.1056\/NEJMra2216474","article-title":"Cystic Fibrosis","volume":"389","author":"Grasemann","year":"2023","journal-title":"N. 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