1.Introduction_Hoskin

296 / 604

SBRT- proper patient selection
Inclusion
• Able to lie flat for extended period of time 40-50 minutes
• Reasonable performance status
• Lesion clearly identified on CT or MRI
• Limited number of lesions ≤ 2-3 spinal levels
• Gross tumor ≥ 3-5 mm from spinal cord
Exclusion
• MSCC
• no MRI possible
• recent 89S
• prior RT to 45 Gy2
• spinal instability
Patient A Patient B Patient C
distress relaxed nervous nervous
performance good good poor
physical
complaints
no pain no pain highly
symptomatic
set up error 1 mm 3 mm 5mm