Table 2:

Scoring pattern of variables

Patterns
Clinical findings
Age
Sex
Nominal variables ranked by visual inspection of conventional MR imaging
Side	Left, right
Site	Superficial (only cortical, not in basal ganglia and outside the insula), deep (involves the insula, thalamus,     basal ganglia, or posterior fossa)
Multi-focality	0 (no),
	1 (yes)
Functional location	Noneloquent, near-eloquent, eloquent brain
Mass effect	0 (not apparent),
	1 (deformity of ventricle, no midline shift),
	2 (moderate, <5 mm),
	3 (significant, >5 mm)
Edema	0 (not apparent),
	1 (<tumor volume),
	2 (≥tumor volume)
Cyst	0 (no),
	1 (yes)
Necrosis	0 (none),
	1 (<25% of tumor volume),
	2 (25%–50% of tumor volume),
	3 (>50% of tumor volume)
Enhancement	0 (none),
	1 (low-to-medium signal intensity),
	2 (medium-to-high signal intensity)
Enhancing margin	0 (well-defined),
	1 (none or poorly defined)
Extent of resection	Based on postoperative scans:
	0 (total resection),
	1 (90%–99%),
	2 (20%–89%),
	3 (<20%)
Volumes of ROIs
ET (neoplastic)
NET, including neoplastic, edematous, necrotic, or cystic
Intensity characteristics of DTI (B0, FA, trace) and rCBV over the 2 ROIs (ET, NET)
Mean
Minimum
Maximum
Peak of histogram
Variance