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Differentiating Radiation-Induced Necrosis from Recurrent Brain Tumor Using MR Perfusion and Spectroscopy: A Meta-Analysis

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  • Ming-Tsung Chuang
  • Yi-Sheng Liu
  • Yi-Shan Tsai
  • Ying-Chen Chen
  • Chien-Kuo Wang

Abstract

Purpose: This meta-analysis examined roles of several metabolites in differentiating recurrent tumor from necrosis in patients with brain tumors using MR perfusion and spectroscopy. Methods: Medline, Cochrane, EMBASE, and Google Scholar were searched for studies using perfusion MRI and/or MR spectroscopy published up to March 4, 2015 which differentiated between recurrent tumor vs. necrosis in patients with primary brain tumors or brain metastasis. Only two-armed, prospective or retrospective studies were included. A meta-analysis was performed on the difference in relative cerebral blood volume (rCBV), ratios of choline/creatine (Cho/Cr) and/or choline/N-acetyl aspartate (Cho/NAA) between participants undergoing MRI evaluation. A χ2-based test of homogeneity was performed using Cochran’s Q statistic and I2. Results: Of 397 patients in 13 studies who were analyzed, the majority had tumor recurrence. As there was evidence of heterogeneity among 10 of the studies which used rCBV for evaluation (Q statistic = 31.634, I2 = 97.11%, P

Suggested Citation

  • Ming-Tsung Chuang & Yi-Sheng Liu & Yi-Shan Tsai & Ying-Chen Chen & Chien-Kuo Wang, 2016. "Differentiating Radiation-Induced Necrosis from Recurrent Brain Tumor Using MR Perfusion and Spectroscopy: A Meta-Analysis," PLOS ONE, Public Library of Science, vol. 11(1), pages 1-13, January.
    • Handle: RePEc:plo:pone00:0141438
    DOI: 10.1371/journal.pone.0141438
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