PMID- 36620179 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20230111 IS - 2223-4292 (Print) IS - 2223-4306 (Electronic) IS - 2223-4306 (Linking) VI - 13 IP - 1 DP - 2023 Jan 1 TI - (18)F-FDG PET/CT imaging of pediatric peripheral neuroblastic tumor: a combined model to predict the International Neuroblastoma Pathology Classification. PG - 94-107 LID - 10.21037/qims-22-343 [doi] AB - BACKGROUND: The aim of this study was to evaluate the effect of a model combining a 18F-fluorodeoxyglucose positron emission tomography/computed tomography ((18)F-FDG PET/CT)-based radiomics signature with clinical factors in the preoperative prediction of the International Neuroblastoma Pathology Classification (INPC) type of pediatric peripheral neuroblastic tumor (pNT). METHODS: A total of 106 consecutive pediatric pNT patients confirmed by pathology were retrospectively analyzed. Significant features determined by multivariate logistic regression were retained to establish a clinical model (C-model), which included clinical parameters and PET/CT radiographic features. A radiomics model (R-model) was constructed on the basis of PET and CT images. A semiautomatic method was used for segmenting regions of interest. A total of 1,016 radiomics features were extracted. Univariate analysis and the least absolute shrinkage selection operator were then used to select significant features. The C-model was combined with the R-model to establish a combination model (RC-model). The predictive performance was validated by receiver operating characteristic (ROC) curve analysis, calibration curves, and decision curve analysis (DCA) in both the training cohort and validation cohort. RESULTS: The radiomics signature was constructed using 5 selected radiomics features. The RC-model, which was based on the 5 radiomics features and 3 clinical factors, showed better predictive performance compared with the C-model alone [area under the curve in the validation cohort: 0.908 vs. 0.803; accuracy: 0.903 vs. 0.710; sensitivity: 0.895 vs. 0.789; specificity: 0.917 vs. 0.583; net reclassification improvement (NRI) 0.439, 95% confidence interval (CI): 0.1047-0.773; P=0.01]. The calibration curve showed that the RC-model had goodness of fit, and DCA confirmed its clinical utility. CONCLUSIONS: In this preliminary single-center retrospective study, an R-model based on (18)F-FDG PET/CT was shown to be promising in predicting INPC type in pediatric pNT, allowing for the noninvasive prediction of INPC and assisting in therapeutic strategies. CI - 2023 Quantitative Imaging in Medicine and Surgery. All rights reserved. FAU - Qian, Luo-Dan AU - Qian LD AD - Nuclear Medicine Department, Beijing Friendship Hospital, Capital Medical University, Beijing, China. FAU - Feng, Li-Juan AU - Feng LJ AD - Nuclear Medicine Department, Beijing Friendship Hospital, Capital Medical University, Beijing, China. FAU - Zhang, Shu-Xin AU - Zhang SX AD - Nuclear Medicine Department, Beijing Friendship Hospital, Capital Medical University, Beijing, China. FAU - Liu, Jun AU - Liu J AD - Nuclear Medicine Department, Beijing Friendship Hospital, Capital Medical University, Beijing, China. FAU - Ren, Jia-Liang AU - Ren JL AD - GE Healthcare, Beijing, China. FAU - Liu, Lei AU - Liu L AD - Sinounion Medical Technology (Beijing) Co., Ltd., Beijing, China. FAU - Zhang, Hui AU - Zhang H AD - Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing, China. FAU - Yang, Jigang AU - Yang J AD - Nuclear Medicine Department, Beijing Friendship Hospital, Capital Medical University, Beijing, China. LA - eng PT - Journal Article DEP - 20221010 PL - China TA - Quant Imaging Med Surg JT - Quantitative imaging in medicine and surgery JID - 101577942 PMC - PMC9816755 OTO - NOTNLM OT - 18F-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) OT - International Neuroblastoma Pathology Classification (INPC) OT - Peripheral neuroblastic tumor (pNT) OT - radiomics COIS- Conflicts of Interest: All authors have completed the ICMJE uniform disclosure form (available at https://qims.amegroups.com/article/view/10.21037/qims-22-343/coif). The authors report that this work was supported by the National Natural Science Foundation of China: Imaging genomics of neuroblastoma based on 18F-FDG PET/CT and 123I-MIBG SPECT/CT (No. 81971642). JLR is in partnership with GE Healthcare China. LL is in partnership with Sinounion Medical Technology (Beijing) Co., Ltd., Beijing. The authors have no other conflicts of interest to declare. EDAT- 2023/01/10 06:00 MHDA- 2023/01/10 06:01 PMCR- 2023/01/01 CRDT- 2023/01/09 04:06 PHST- 2022/04/08 00:00 [received] PHST- 2022/09/09 00:00 [accepted] PHST- 2023/01/09 04:06 [entrez] PHST- 2023/01/10 06:00 [pubmed] PHST- 2023/01/10 06:01 [medline] PHST- 2023/01/01 00:00 [pmc-release] AID - qims-13-01-94 [pii] AID - 10.21037/qims-22-343 [doi] PST - ppublish SO - Quant Imaging Med Surg. 2023 Jan 1;13(1):94-107. doi: 10.21037/qims-22-343. Epub 2022 Oct 10.