Gamma knife radiosurgery (GKRS) for pineal region tumors: a study of 147 cases

Table 3 Evaluation of all (147) cases after GKRS treatment

	CR (%)	PR (%)	MR (%)	NC (%)	PROGR (%)	Total	LTCR (%)	ATV (cm³)	Karnofsky scoring	Survival rate (%)
Before treatment								8.47	72.23
1 year after treatment	57 (48.31)	34 (28.81)	22 (18.64)	2 (1.69)	3 (2.54)	118	97.40	1.23	87.83 ± 7.31	80.2
3 years after treatment	52 (49.06)	27 (25.41)	19 (17.92)	2 (1.89)	6 (5.66)	106	94.30	1.33	77.25 ± 13.38	72.1
5 years after treatment	43 (43.88)	26 (26.53)	17 (17.35)	3 (3.06)	9 (9.18)	98	90.80	2.29	76.43 ± 17.76	66.7

Abbreviations: GKRS Gamma knife radiosurgery, CR complete response (tumor disappearance), PR partial response (≥50 % tumor volume reduction), MR minor response (25–50 % reduction), NC no change (<25 % reduction), PROGR progression (tumor enlargement), LTCR local tumor control rate = CR + PR + MR + NC/total, ATV average tumor volume

ISSN: 1477-7819