PMID- 37117233 OWN - NLM STAT- MEDLINE DCOM- 20230501 LR - 20230510 IS - 2045-2322 (Electronic) IS - 2045-2322 (Linking) VI - 13 IP - 1 DP - 2023 Apr 28 TI - Thin-slice computed tomography enables to classify pulmonary subsolid nodules into pre-invasive lesion/minimally invasive adenocarcinoma and invasive adenocarcinoma: a retrospective study. PG - 6999 LID - 10.1038/s41598-023-33803-x [doi] LID - 6999 AB - The aim was to investigate the ability of thin-slice computed tomography (TSCT) to differentiate invasive pulmonary adenocarcinomas (IACs) from pre-invasive/minimally invasive adenocarcinoma (AAH-MIAs), manifesting as subsolid nodules (SSNs) of diameter less than 30 mm. The CT findings of 810 patients with single subsolid nodules diagnosed by pathology of resection specimens were analyzed (atypical adenomatous hyperplasia, n = 13; adenocarcinoma in situ, n = 175; minimally invasive adenocarcinoma, n = 285; and invasive adenocarcinoma, n = 337). According to the classification of lung adenocarcinoma published by WHO classification of thoracic tumors in 2015, TSCT features of 368 pure ground-glass nodules (pGGN) and 442 part-solid nodules (PSNs) were compared AAH-MIAs with IACs. Logistic regression and receiver operating characteristic (ROC) curve analyses were performed. In pGGNs, multivariate analysis of factors found to be significant by univariate analysis revealed that higher mean-CT values (p = 0.006, OR 1.006, 95% CI 1.002-1.010), larger tumor size (p < 0.001, OR 1.483, 95% CI 1.304-1.688) with air bronchogram and non-smooth margins were significantly associated with IACs. The optimal cut-off tumor diameter for AAH-MIAs lesions was less than 10.75 mm (sensitivity, 82.8%; specificity, 80.6%) and optimal cut-off mean-CT value - 629HU (sensitivity, 78.1%; specificity, 50.7%). In PSNs, multivariate analysis of factors found to be significant by univariate analysis revealed that smaller tumor diameter (p < 0.001, OR 0.647, 95% CI 0.481-0.871), smaller size of solid component (p = 0.001, OR 83.175, 95% CI 16.748-413.079),and lower mean-CT value of solid component (p < 0.001, OR 1.009, 95% CI 1.004-1.014) were significantly associated with AAH-MIAs (p < 0.05). The optimal cut-off tumor diameter, size of solid component, and mean-CT value of solid component for AAH-MIAs lesions were less than 14.595 mm (sensitivity, 71.1%; specificity, 83.4%), 4.995 mm (sensitivity, 97.8%; specificity, 92.3%) and - 227HU (sensitivity, 65.6%; specificity, 76.3%), respectively. In subsolid nodules, whether pGGN or PSNs, the characteristics of TSCT can help in distinguishing IACs from AAH-MIAs. CI - (c) 2023. The Author(s). FAU - Li, Min AU - Li M AD - Department of Thoracic Surgery, Shanghai Chest Hospital, Shanghai Jiaotong University, 241 Huaihai West Road, Xuhui District, Shanghai, 200030, China. AD - Department of Radiology, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China. FAU - Zhu, Lei AU - Zhu L AD - Department of Pathology, Shanghai Chest Hospital, Shanghai Jiaotong University, 241 Huaihai West Road, Xuhui District, Shanghai, 200030, China. FAU - Lv, Yilv AU - Lv Y AD - Department of Thoracic Surgery, Shanghai Chest Hospital, Shanghai Jiaotong University, 241 Huaihai West Road, Xuhui District, Shanghai, 200030, China. FAU - Shen, Leilei AU - Shen L AD - Department of Radiology, Shanghai Chest Hospital, Shanghai Jiaotong University, Shanghai, China. FAU - Han, Yuchen AU - Han Y AD - Department of Pathology, Shanghai Chest Hospital, Shanghai Jiaotong University, 241 Huaihai West Road, Xuhui District, Shanghai, 200030, China. ychan@cmu.edu.cn. FAU - Ye, Bo AU - Ye B AD - Department of Thoracic Surgery, Shanghai Chest Hospital, Shanghai Jiaotong University, 241 Huaihai West Road, Xuhui District, Shanghai, 200030, China. yb1373@shchest.org. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20230428 PL - England TA - Sci Rep JT - Scientific reports JID - 101563288 SB - IM MH - Humans MH - Retrospective Studies MH - *Lung Neoplasms/diagnostic imaging/pathology MH - Neoplasm Invasiveness/diagnostic imaging MH - *Adenocarcinoma/diagnostic imaging/pathology MH - *Adenocarcinoma of Lung/diagnostic imaging MH - *Multiple Pulmonary Nodules/diagnostic imaging MH - Tomography, X-Ray Computed/methods PMC - PMC10147622 COIS- The authors declare no competing interests. EDAT- 2023/04/29 06:04 MHDA- 2023/05/01 06:42 PMCR- 2023/04/28 CRDT- 2023/04/28 23:18 PHST- 2022/04/12 00:00 [received] PHST- 2023/04/19 00:00 [accepted] PHST- 2023/05/01 06:42 [medline] PHST- 2023/04/29 06:04 [pubmed] PHST- 2023/04/28 23:18 [entrez] PHST- 2023/04/28 00:00 [pmc-release] AID - 10.1038/s41598-023-33803-x [pii] AID - 33803 [pii] AID - 10.1038/s41598-023-33803-x [doi] PST - epublish SO - Sci Rep. 2023 Apr 28;13(1):6999. doi: 10.1038/s41598-023-33803-x.