Table 1.

Patient and treatment characteristics.

Number of patients	12
Number of lesions	32
Gender (male/female)	8		4
%	67		33
	Median	Mean			Range
Age (years)	34.9	35.1			13.7 – 71.3
Pretreatment Karnofsky Performance Status (%)	80	80			30 – 100
Follow-up (months)	56.7	55.7			3.2 – 104.2
Tumor volume (cc)	0.37	0.58			0.03 – 2.89
Number of fractions	1	1.3			1 – 3
Dose (Gy)	15	15.6			10 – 24
Prescription isodose (%)	70	71.8			70 – 85
Conformity index	1.32	1.43			1.04 – 2.67
Homogeneity index	1.43	1.39			1.18 – 1.43
Coverage	97.3	93.7			76.0 – 99.9
RRS indication	Primary treatment	Recurrence			Adjuvant treatment
Number of lesions	19	8			5
%	59	25			16
Tumor location	Cervical	Thoracic			Lumbar
Number of lesions	10	18			4
%	31	56			13
Tumor grading (WHO)	II			III
Number of patients	7			5
%	58			42
Symptoms	None	Dysesthesia/hypesthesia			Weakness/paralysis
Number of patients	4	5			7
%	33	41			58

cc, cubic centimeter; Gy, Gray; WHO, World Health Organization.