Kaplan-Meier Curve for Survival analysis among the group I, II and III.

<p>Kaplan-Meier Curve for Survival analysis among the group I, II and III.</p

Logistic Regression analysis for the clinical and radiological parameters as predictors of WHO non-grade I meningioma.

<p>Logistic Regression analysis for the clinical and radiological parameters as predictors of WHO non-grade I meningioma.</p

Summary of the preoperative radiological classification.

<p>*Each “Yes” scores 1 point; the lowest possible score is 0 and the highest is 5.</p><p>^# Group I—score 0–1; group II-score 2–3; group III—score 4–5.</p><p>Summary of the preoperative radiological classification.</p

Radiologic characteristics of meningiomas in preoperative MRI.

<p>a) T2-weighted MRI demonstrating the complete arachnoid ring (black arrow) and no peritumoral edema; b) T2-weighted MRI demonstrating the disappearance of arachnoid ring (black arrow head) and peritumoral edema c) T1-weighted gadolinium enhanced MRI demonstrating heterogeneous enhancement and irregular shape of the tumor; d) T1-weighted gadolinium enhanced MRI demonstrating homogenous enhancement and regular shape of tumor; e) Diffusion weighted MRI demonstrating hyperintense lesion; f) Diffusion weighted MRI demonstrating isointense lesion.</p

Kaplan-Meier Curve for Survival analysis for WHO grade I and non-grade I tumors.

<p>Kaplan-Meier Curve for Survival analysis for WHO grade I and non-grade I tumors.</p

Cox Regression analysis for the clinical and radiological parameters as predictors of unfavorable survival outcomes.

<p>Cox Regression analysis for the clinical and radiological parameters as predictors of unfavorable survival outcomes.</p

Cox Regression analysis for the clinical and radiological parameters as predictors of recurrence.

<p>Cox Regression analysis for the clinical and radiological parameters as predictors of recurrence.</p

Bar-graph demonstrating the survival time in group I, II and III in relation to WHO grades of meningioma.

<p>Bar-graph demonstrating the survival time in group I, II and III in relation to WHO grades of meningioma.</p