Robotic radiosurgery in pancreatic cancer: A systematic review

Table 2 Patient and tumor characteristics

Ref.	Patients	Stage	Median GTV size (cm3); mean (range)	Site	Median follow-up (mo), range
Koong et al[17], 2004	15	NR	29 (19-72)	H: 66.6%, B: 26.6%, T: 6.6%	5.0
Koong et al[18], 2005	191	NR	50 (14-92)	H: 68%, B: 32%	5.4
Schellenberg et al[19], 2008	16	NR	PTV: 48 (21-84)	H: 87.5%, B: 12.5%	NR
Seo et al[20], 2009	30	T4: 100.0% N1: 30.0%	41 (21-96)	H: 56.7% B/T: 43.3%	14.5
Goyal et al[21], 2012	19	M1: 4 pts	57 (10-118)	NR	9 (5.8-23.1)

¹Sixteen patients received RRS. B: Body of the pancreas; H: Head of the pancreas; NR: Not reported; PTV: Planning target volume; T: Tail of the pancreas.