{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,12,5]],"date-time":"2025-12-05T15:11:29Z","timestamp":1764947489093,"version":"3.46.0"},"reference-count":29,"publisher":"FapUNIFESP (SciELO)","license":[{"start":{"date-parts":[[2025,1,1]],"date-time":"2025-01-01T00:00:00Z","timestamp":1735689600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2025,1,1]],"date-time":"2025-01-01T00:00:00Z","timestamp":1735689600000},"content-version":"am","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2025,1,1]],"date-time":"2025-01-01T00:00:00Z","timestamp":1735689600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Radiol Bras"],"abstract":"<jats:p>Abstract  Objective: To assess the prevalence and type of residual lung abnormalities on chest computed tomography (CT) and pulmonary function testing (PFT) variables in patients with respiratory symptoms related to post-COVID-19 condition at 12 months of follow-up, and to analyze associations between CT findings and PFT parameters.  Materials and Methods: The CT findings were evaluated by two radiologists, who calculated semiquantitative CT scores. The PFTs included spirometry, plethysmography, and the diffusing capacity of the lung for carbon monoxide.  Results: Thirty-seven patients were included in the study. On CT scans of the chest acquired at 12 months of follow-up, 78.3% of the patients exhibited residual abnormalities, including reticular opacities, in 75.7%; traction bronchiectasis\/bronchiolectasis, in 43.2%; and fibrosis-like findings, in 43.2%. The mean overall CT score was 9.30 \u00b1 2.59. Patients with fibrosis-like findings had significantly lower total lung capacity (68.6% vs. 80.6% of the predicted value; p = 0.018). A moderate negative correlation was found between the overall CT score and total lung capacity (rs = \u22120.49; p = 0.003).  Conclusion: It seems that a significant proportion of patients with respiratory symptoms related to post\u2013COVID-19 condition demonstrate residual lung abnormalities on chest CT at 12 months of follow-up, with a substantial prevalence of fibrosis-like findings. Such abnormalities are associated with restrictive lung disease.<\/jats:p>","DOI":"10.1590\/0100-3984.2025.0043","type":"journal-article","created":{"date-parts":[[2025,12,5]],"date-time":"2025-12-05T15:06:57Z","timestamp":1764947217000},"source":"Crossref","is-referenced-by-count":0,"title":["Association between abnormalities on chest computed tomography and pulmonary function in patients with respiratory symptoms at 12 months after COVID-19"],"prefix":"10.1590","volume":"58","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9828-8107","authenticated-orcid":false,"given":"Luciano","family":"Folador","sequence":"first","affiliation":[{"name":"Hospital de Cl\u00ednicas de Porto Alegre (HCPA),  Brazil; Faculdade de Medicina da Universidade Federal do Rio Grande do Sul (UFRGS),  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1825-1732","authenticated-orcid":false,"given":"Vicente Bohrer","family":"Brentano","sequence":"additional","affiliation":[{"name":"Hospital de Cl\u00ednicas de Porto Alegre (HCPA),  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9604-7361","authenticated-orcid":false,"given":"Ravena Maya Cardoso","family":"da Silva","sequence":"additional","affiliation":[{"name":"Faculdade de Medicina da Universidade Federal do Rio Grande do Sul (UFRGS),  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6527-9805","authenticated-orcid":false,"given":"Igor Gorski","family":"Benedetto","sequence":"additional","affiliation":[{"name":"Hospital de Cl\u00ednicas de Porto Alegre (HCPA),  Brazil; Faculdade de Medicina da Universidade Federal do Rio Grande do Sul (UFRGS),  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0086-1890","authenticated-orcid":false,"given":"Marcelo Basso","family":"Gazzana","sequence":"additional","affiliation":[{"name":"Hospital de Cl\u00ednicas de Porto Alegre (HCPA),  Brazil; Faculdade de Medicina da Universidade Federal do Rio Grande do Sul (UFRGS),  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8393-3126","authenticated-orcid":false,"given":"Danilo Cortozi","family":"Berton","sequence":"additional","affiliation":[{"name":"Hospital de Cl\u00ednicas de Porto Alegre (HCPA),  Brazil; Faculdade de Medicina da Universidade Federal do Rio Grande do Sul (UFRGS),  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6651-7462","authenticated-orcid":false,"given":"Tiago Severo","family":"Garcia","sequence":"additional","affiliation":[{"name":"Hospital de Cl\u00ednicas de Porto Alegre (HCPA),  Brazil; Faculdade de Medicina da Universidade Federal do Rio Grande do Sul (UFRGS),  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"530","published-online":{"date-parts":[[2025]]},"reference":[{"key":"ref1","series-title":"WHO COVID-19 dashboard [Internet]"},{"key":"ref2","series-title":"COVID-19 rapid guideline: managing the long-term effects of COVID-19 [Internet]"},{"key":"ref3","series-title":"Coronavirus disease (COVID-19): Post COVID-19 condition [Internet]. 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