1. Predictive value of metabolic parameters and apparent diffusion coefficient derived from 18F-FDG PET/MR in patients with non-small cell lung cancer.
- Author
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Jiang, Han, Li, Ziqiang, Meng, Nan, Luo, Yu, Feng, Pengyang, Fu, Fangfang, Yang, Yang, Yuan, Jianmin, Wang, Zhe, and Wang, Meiyun
- Subjects
DIFFUSION magnetic resonance imaging ,NON-small-cell lung carcinoma ,PROPORTIONAL hazards models ,POSITRON emission tomography ,OVERALL survival - Abstract
Background: Multiple models intravoxel incoherent motion (IVIM) based
18 F-fluorodeoxyglucose positron emission tomography-magnetic resonance(18 F-FDG PET/MR) could reflect the microscopic information of the tumor from multiple perspectives. However, its value in the prognostic assessment of non-small cell lung cancer (NSCLC) still needs to be further explored. Objective: To compare the value of18 F-FDG PET/MR metabolic parameters and diffusion parameters in the prognostic assessment of patients with NSCLC. Meterial and methods: Chest PET and IVIM scans were performed on 61 NSCLC patients using PET/MR. The maximum standard uptake value (SUVmax ), metabolic tumor volume (MTV), total lesion glycolysis (TLG), diffusion coefficient (D), perfusion fraction (f), pseudo diffusion coefficient (D*) and apparent diffusion coefficient (ADC) were calculated. The impact of SUVmax , MTV, TLG, D, f, D*and ADC on survival was measured in terms of the hazard ratio (HR) effect size. Overall survival time (OS) and progression-free survival time (PFS) were evaluated with the Kaplan–Meier and Cox proportional hazard models. Log-rank test was used to analyze the differences in parameters between groups. Results: 61 NSCLC patients had an overall median OS of 18 months (14.75, 22.85) and a median PFS of 17 months (12.00, 21.75). Univariate analysis showed that pathological subtype, TNM stage, surgery, SUVmax , MTV, TLG, D, D* and ADC were both influential factors for OS and PFS in NSCLC patients. Multifactorial analysis showed that MTV, D* and ADC were independent predicting factors for OS and PFS in NSCLC patients. Conclusion: MTV, D* and ADC are independent predicting factors affecting OS and PFS in NSCLC patients.18 F-FDG PET/MR-derived metabolic parameters and diffusion parameters have clinical value for prognostic assessment of NSCLC patients. [ABSTRACT FROM AUTHOR]- Published
- 2024
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