Dosimetric study between a single isocenter dynamic conformal arc therapy technique and Gamma Knife radiosurgery for multiple brain metastases treatment: impact of target volume geometrical characteristics

Table 1 Characteristics of the lesions included in the study

Number of patients	20
Number of metastases	95
Mean volume (cc)	0.76 ± 1.35
Median volume (cc)	0.3
Volume range (cc)	0.02 to 9.61
Mean major axis diameter (cm)	1.17 ± 0.65
Major axis diameter range (cm)	0.35 to 4
Median major axis diameter (cm)	1

ISSN: 1748-717X