Prognostic significance of total metabolic tumor volume on baseline 18 F-FDG PET/CT in patients with lung adenocarcinoma: further stratification of the ninth edition of TNM staging subgroups
- Ruiqiu Zhang 1,2,3, Xiaohui Zhang 2, Qiaoling Gao 2, Han Zhang 4, Lianyu Gu 4, Xiuyu Guo 2, Jingfeng Zhang 1,2, Jianjun Zheng 1,2, Maoqing Jiang 1,2,3
- Ruiqiu Zhang 1,2,3, Xiaohui Zhang 2, Qiaoling Gao 2
- 1Graduate Joint Training Base, Zhejiang Chinese Medical University.
- 2Department of Radiology.
- 3Department of Nuclear Medicine, Ningbo No.2 Hospital, Ningbo, China.
- 4School of Medicine, Shaoxing University, Shaoxing, China.
- 0Graduate Joint Training Base, Zhejiang Chinese Medical University.
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View abstract on PubMed
Summary
This summary is machine-generated.Total metabolic tumor volume (TMTV) measured by PET/CT can help predict survival in lung adenocarcinoma (LUAD) patients. Incorporating TMTV may improve risk stratification within the current tumor-node-metastasis (TNM) staging system.
Area Of Science
- Oncology
- Radiology
- Medical Imaging
Background
- Lung adenocarcinoma (LUAD) prognosis is critical for treatment planning.
- The tumor-node-metastasis (TNM) staging system is standard for LUAD prognosis.
- Novel prognostic markers are needed to refine LUAD staging.
Purpose Of The Study
- To evaluate the prognostic value of baseline total metabolic tumor volume (TMTV) in LUAD.
- To assess if TMTV can further stratify patients within the TNM staging system.
Main Methods
- Retrospective analysis of 384 LUAD patients with pretreatment PET/CT.
- Determined optimal TMTV cutoff using ROC curve analysis.
- Assessed overall survival (OS) with Kaplan-Meier curves and C statistics.
Main Results
- Optimal TMTV cutoff was 40.13 ml.
- Patients with lower TMTV (<40.13 ml) had significantly better OS across stages II-IV.
- TMTV showed comparable predictive ability to TNM staging for OS.
Conclusions
- The TNM staging system is a strong prognostic tool for LUAD.
- Baseline TMTV provides additional prognostic information for risk stratification within TNM stages.
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