Table 4.

List of studies regarding staged Gamma-Knife radiosurgery for meningioma.

Authors & year	No. of cases	Fractionated mode	Prescribe dose & fractions	Interval (m)	Tumor control	Permanent radiation injury (%)
Iwai et al. (11)	7	volume-staged	8–12 Gy × 2 f	6	86% at 39 m	0
Haselsberger et al. (13)	20	volume-staged	12 Gy × 2 f	6	90% at 7.5 y	0
Su et al. (14)	4	volume-staged	8–15 Gy × 2–3 f	4–6	100% at 100.5 m	0
Iwai et al. (12)	27	volume-staged	8–12 Gy × 2 f	3–9	75% at 84 m	4
Present study	71	dose-staged	9 Gy × 2 f	6	97.2% at 36 m	0