919 / 945
Purpose
Hit the target, i.e. localize the target within the body eigher before the
irradiation or continously during the treatment.
Means
•
2D MV or kV systems, optical systems, 3D MV or kV systems, MR
•
Information (images) from the planning is typically used as referece
•
Markers or patient anatomy can be used to calculate an offset
Imaging in the treatment room