{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"institution":[{"name":"medRxiv"}],"indexed":{"date-parts":[[2026,1,16]],"date-time":"2026-01-16T13:09:14Z","timestamp":1768568954896,"version":"3.49.0"},"posted":{"date-parts":[[2025,4,6]]},"group-title":"Respiratory Medicine","reference-count":46,"publisher":"openRxiv","license":[{"start":{"date-parts":[[2025,4,6]],"date-time":"2025-04-06T00:00:00Z","timestamp":1743897600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nd\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"accepted":{"date-parts":[[2025,4,6]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                <jats:p>\n                  Interstitial lung disease (ILD) encompasses multiple pulmonary disorders characterized by damaged pulmonary tissue caused by a sequence of inflammation and fibrosis. While much is known about ILD-associated changes within the parenchyma and the pathophysiological processes underpinning the disruption of pulmonary dynamics and gas exchange, less is known about ILD-associated changes of luminal area within the large conducting airways. We aimed to investigate whether luminal area of the large conducting airways is different between patients with ILD and healthy controls. In a retrospective case-control study, luminal areas of seven large conducting airways were measured using three-dimensional reconstructions of computed tomography imaging. Patients with ILD (N=82; 54% female) were compared to control subjects matched for age, sex, and height. Univariate ANOVA tests or Kruskal-Wallis tests were used to analyze group and sex differences. Patients with ILD had greater large conducting airway luminal areas than control subjects for measured large conducting airways, including the trachea (296\u00b173 vs. 247\u00b165 mm\n                  <jats:sup>2<\/jats:sup>\n                  ,\n                  <jats:italic>P<\/jats:italic>\n                  &lt;0.001), right main bronchus (214\u00b159 vs. 161\u00b146 mm\n                  <jats:sup>2<\/jats:sup>\n                  ,\n                  <jats:italic>P<\/jats:italic>\n                  &lt;0.001), bronchus intermediate (123\u00b132 vs. 94\u00b128 mm\n                  <jats:sup>2<\/jats:sup>\n                  ,\n                  <jats:italic>P<\/jats:italic>\n                  &lt;0.001), right upper lobe (81\u00b122 vs. 61\u00b120 mm\n                  <jats:sup>2<\/jats:sup>\n                  ,\n                  <jats:italic>P<\/jats:italic>\n                  &lt;0.001), left main bronchus (151\u00b141 vs. 119\u00b135 mm\n                  <jats:sup>2<\/jats:sup>\n                  ,\n                  <jats:italic>P<\/jats:italic>\n                  &lt;0.001), left lower lobe (71\u00b122 vs. 48\u00b115 mm\n                  <jats:sup>2<\/jats:sup>\n                  ,\n                  <jats:italic>P<\/jats:italic>\n                  &lt;0.001), and left upper lobe (86\u00b121 vs. 68\u00b122 mm\n                  <jats:sup>2<\/jats:sup>\n                  ,\n                  <jats:italic>P<\/jats:italic>\n                  &lt;0.001). Among patients with ILD, males had 17-34% greater luminal areas (normalized to height) than females depending on the airway segment (all\n                  <jats:italic>P<\/jats:italic>\n                  &lt;0.05).\n                <\/jats:p>\n                <jats:sec>\n                  <jats:title>NEW &amp; NOTEWORTHY<\/jats:title>\n                  <jats:p>This study provides evidence that interstitial lung disease (ILD) is associated with greater large conducting airway luminal area, even if matched for key characteristics (age, sex, and height). Consistent with observations in health, adult males with ILD had greater height-normalized large conducting luminal areas than adult females with ILD.<\/jats:p>\n                <\/jats:sec>","DOI":"10.1101\/2025.04.04.25324181","type":"posted-content","created":{"date-parts":[[2025,4,6]],"date-time":"2025-04-06T11:05:21Z","timestamp":1743937521000},"source":"Crossref","is-referenced-by-count":0,"title":["Greater Large Conducting Airway Luminal Area in Patients with Interstitial Lung Disease"],"prefix":"10.64898","author":[{"ORCID":"https:\/\/orcid.org\/0009-0006-2814-5561","authenticated-orcid":false,"given":"Alex J.","family":"Miller","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5661-0698","authenticated-orcid":false,"given":"Erik A.","family":"Ovrom","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0006-3030-7232","authenticated-orcid":false,"given":"Solomiia","family":"Zaremba","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8116-3538","authenticated-orcid":false,"given":"Jonathon W.","family":"Senefeld","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6458-0142","authenticated-orcid":false,"given":"Chad C.","family":"Wiggins","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5575-4043","authenticated-orcid":false,"given":"Paolo B.","family":"Dominelli","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4908-9774","authenticated-orcid":false,"given":"Juan G.","family":"Ripoll","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2092-3163","authenticated-orcid":false,"given":"Brian T.","family":"Welch","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7135-7643","authenticated-orcid":false,"given":"Michael J.","family":"Joyner","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1851-7329","authenticated-orcid":false,"given":"Andrew 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