PMID- 36561373 OWN - NLM STAT- MEDLINE DCOM- 20221226 LR - 20230112 IS - 2040-2309 (Electronic) IS - 2040-2295 (Print) IS - 2040-2295 (Linking) VI - 2022 DP - 2022 TI - Development and Validation of the Random Forest Model via Combining CT-PET Image Features and Demographic Data for Distant Metastases among Lung Cancer Patients. PG - 7793533 LID - 10.1155/2022/7793533 [doi] LID - 7793533 AB - The work aimed at developing and validating a random forest model of CT-PET image features combined with demographic data to diagnose distant metastases among lung cancer patients. This study involved lung cancer patients from The Cancer Genome Atlas lung adenocarcinoma (TCGA-LUAD) dataset, the lung PET-CT dataset, the lung squamous cell carcinoma (LSCC) dataset, and the National Cancer Institute's Clinical Proteomic Tumor Analysis Consortium lung adenocarcinoma (CPTAC-LUAD) dataset and collected the information on 178 CT, 178 PET, and the patients' age, history of smoking, and gender. We conducted image processing and feature extraction. Finally, 4 computed tomography (CT) image features and 2 positron emission tomography (PET) image features were extracted. Four prediction models based on CT image features, PET image features, and demographic data were developed, and the area under the receiver operating characteristic (ROC) curve was used to evaluate the performance of prediction models. A total of 178 eligible samples were randomly divided into a training set (n = 134) and a testing set (n = 44) at a ratio of 3 : 1, with 2021 as a random number. ROC analyses illustrated that the predictive performance for distant metastases of combining CT-PET image features and demographic data for training and testing were 0.923 (95% confidence interval (CI): 0.873-0.973) and 0.873 (95% CI: 0.757-0.990). In addition, the predictive performance of the combined model in the testing set was significantly better than that of the CT-demographic data model (0.716, 95% CI: 0.531-0.902), PET-demographic data model (0.802, 95% CI: 0.633-0.970), and CT-PET model (0.797, 95% CI: 0.666-0.928). The random forest model via combining CT-PET image features and demographic data could have great performance in predicting distant metastases among lung cancer patients. CI - Copyright (c) 2022 Lijun Bi and Yi Guo. FAU - Bi, Lijun AU - Bi L AD - Department of Electronic Information, Shandong University of Science and Technology (SDUST), Qingdao 266590, Shandong, China. FAU - Guo, Yi AU - Guo Y AUID- ORCID: 0000-0003-4940-8616 AD - Department of Radiology, Changzhou No. 2 People's Hospital, Changzhou 213000, Jiangsu, China. LA - eng PT - Journal Article DEP - 20221213 PL - England TA - J Healthc Eng JT - Journal of healthcare engineering JID - 101528166 SB - IM MH - Humans MH - Positron Emission Tomography Computed Tomography/methods MH - Proteomics MH - Random Forest MH - *Lung Neoplasms/diagnostic imaging MH - Tomography, X-Ray Computed MH - Positron-Emission Tomography MH - *Adenocarcinoma of Lung MH - Demography PMC - PMC9767733 COIS- The authors declare that there are no conflicts of interest regarding the publication of this article. EDAT- 2022/12/24 06:00 MHDA- 2022/12/27 06:00 PMCR- 2022/12/13 CRDT- 2022/12/23 02:24 PHST- 2022/06/28 00:00 [received] PHST- 2022/11/18 00:00 [revised] PHST- 2022/11/26 00:00 [accepted] PHST- 2022/12/23 02:24 [entrez] PHST- 2022/12/24 06:00 [pubmed] PHST- 2022/12/27 06:00 [medline] PHST- 2022/12/13 00:00 [pmc-release] AID - 10.1155/2022/7793533 [doi] PST - epublish SO - J Healthc Eng. 2022 Dec 13;2022:7793533. doi: 10.1155/2022/7793533. eCollection 2022.