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Table 2 Radiological data: preoperative MRI and postoperative CT

From: Early postoperative serum S100β levels predict ongoing brain damage after meningioma surgery: a prospective observational study

Preoperative MRI Tumour characteristic n Percentage
  Location Convexity 10 19
   Parasaggital 19 36
   Tuberculum sella 9 17
   Anterior clinoid 5 10
   Olfactory groove 3 6
   Falx 3 6
   Sphenoid ridge 2 4
   Planum sphenoidale 1 2
  Mass effect Ventricular asymmetry 23 44
   Midline shift 12 23
  Enhancement Homogenous 43 83
   Cystic component 1 2
   Dural tail 13 25
  Bilateral 4 8
  Multifocal 4 8
   Mean Median Range
  Tumour volume (cm3) 35.29 ± 29.39 29.39 2.35 to 104.20
  Tumour edema-FLAIR (cm3) 24.83 ± 32.39 9.72 0 to 132.05
  Midline shift (mm) 2.16 ± 4.29 0 0 to 15.47
Postoperative CT scanning Finding n Percentage
  Residual tumour 1 2
  Brain edema 35 67
  Brain infarct 1 2
  Midline shift 12 23
  Bleeding 22 42
   Mean Median Range
  Midline shift (mm) 1.29 ± 2.83 0 0 to 12.35
  Bleeding (cm3) 1.13 ± 4.19 0 0 to 29.68
  1. CT, computed tomography; FLAIR, fluid-attenuated inversion recovery; MRI, magnetic resonance imaging.