Metabolic Tumor Volume by 18F-FDG PET/CT Can Predict the Clinical Outcome of Primary Malignant Spine/Spinal Tumors.

Abstract:

BACKGROUND AND PURPOSE:Primary malignant spine/spinal tumors (PMSTs) are rare and life-threatening diseases. In this study, we demonstrated the advantage of volume-based 18F-FDG PET/CT metabolic parameter, metabolic tumor volume (MTV), for assessing the aggressiveness of PMSTs. MATERIALS AND METHODS:We retrospectively reviewed 27 patients with PMSTs and calculated SUVmax, MTV, and total lesion glycolysis (TLG) to compare their accuracy in predicting progression-free survival (PFS) and overall survival (OS) by receiver operating characteristic (ROC) curve analysis. Univariate and multivariate analyses were used to compare the reliability of the metabolic parameters and various clinical factors. RESULTS:MTV exhibited greater accuracy than SUVmax or TLG. The cut-off values for PFS and OS derived from the AUC data were MTV 45 ml and 83 ml and TLG 250 SUV⁎ml and 257 SUV⁎ml, respectively. MTV above cut-off value, but not TLG, was identified as significant prognostic factor for PFS by log-lank test (p = 0.04). In addition, MTV was the only significant predictive factors for PFS and OS in the multivariate analysis. CONCLUSIONS:MTV was a more accurate predictor of PFS and OS in PMSTs compared to TLG or SUVmax and helped decision-making for guiding rational treatment options.

journal_name

Biomed Res Int

authors

Matsumoto Y,Baba S,Endo M,Setsu N,Iida K,Fukushi JI,Kawaguchi K,Okada S,Bekki H,Isoda T,Kitamura Y,Honda H,Nakashima Y

doi

10.1155/2017/8132676

subject

Has Abstract

pub_date

2017-01-01 00:00:00

pages

8132676

eissn

2314-6133

issn

2314-6141

journal_volume

2017

pub_type

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