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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.