In:
PLOS ONE, Public Library of Science (PLoS), Vol. 15, No. 12 ( 2020-12-28), p. e0244502-
Abstract:
To investigate the survival prognostic value of the radiomic features of 18 F-FDG PET in patients who had EGFR (epidermal growth factor receptor) mutated lung adenocarcinoma and received targeted TKI (tyrosine kinase inhibitor) treatment. Methods Fifty-one patients with stage III-IV lung adenocarcinoma and actionable EGFR mutation who received first-line TKI were retrospectively analyzed. All patients underwent pretreatment 18 F-FDG PET/CT, and we calculated the PET-derived radiomic features. Cox proportional hazard model was used to examine the association between the radiomic features and the survival outcomes, including progression-free survival (PFS) and overall survival (OS). A score model was established according to the independent prognostic predictors and we compared this model to the TNM staging system using Harrell's concordance index (c-index). Results Forty-eight patients (94.1%) experienced disease progression and 41 patients (80.4%) died. Primary tumor SUV entropy 〉 5.36, and presence of pleural effusion were independently associated with worse OS (both p 〈 0.001) and PFS ( p = 0.001, and 0.003, respectively). We used these two survival predictors to devise a scoring system (score 0–2). Patients with a score of 1 or 2 had a worse survival than those with a score of 0 (HR for OS: 3.6, p = 0.006 for score 1, and HR: 21.8, p 〈 0.001 for score 2; HR for PFS: 2.2, p = 0.027 for score 1 and HR: 8.8, p 〈 0.001 for score 2). Our scoring system surpassed the TNM staging system (c-index = 0.691 versus 0.574, p = 0.013 for OS, and c-index = 0.649 versus 0.517, p = 0.004 for PFS). Conclusions In this preliminary study, combining PET radiomics with clinical risk factors may improve survival stratification in stage III-IV lung adenocarcinoma with actionable EFGR mutation. Our proposed scoring system may assist with optimization of individualized treatment strategies in these patients.
Type of Medium:
Online Resource
ISSN:
1932-6203
DOI:
10.1371/journal.pone.0244502
DOI:
10.1371/journal.pone.0244502.g001
DOI:
10.1371/journal.pone.0244502.g002
DOI:
10.1371/journal.pone.0244502.g003
DOI:
10.1371/journal.pone.0244502.g004
DOI:
10.1371/journal.pone.0244502.t001
DOI:
10.1371/journal.pone.0244502.t002
DOI:
10.1371/journal.pone.0244502.t003
DOI:
10.1371/journal.pone.0244502.s001
DOI:
10.1371/journal.pone.0244502.s002
DOI:
10.1371/journal.pone.0244502.s003
Language:
English
Publisher:
Public Library of Science (PLoS)
Publication Date:
2020
detail.hit.zdb_id:
2267670-3
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