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

  • 0Graduate Joint Training Base, Zhejiang Chinese Medical University.

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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.