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. Author manuscript; available in PMC: 2016 Aug 1.
Published in final edited form as: World Neurosurg. 2015 May 1;84(2):528–536. doi: 10.1016/j.wneu.2015.04.044

Table 2.

Extent of resection, EOR and Overall survival

All No-IoMRI IoMRI p-value
EOR (%)
Overall (Median) 92 90 97 <0.01
  Eloquent area
    Median 89 89 92 0.29
  Non-eloquent area
    Median 100 92 100 <0.01
Overall survival (months) Median 60 39 90 <0.01
  Eloquent area
    Median 62 34 86 <0.01
  Non-eloquent area
    Median 60 46 92 0.02

EOR: extent of resection

IoMRI: used intra-operative magnetic resonance imaging

No-IoMRI: intra-operative magnetic resonance imaging was not used