Particle Therapy 2017

Photon radiation therapy of 1950s – 1970s

Plane radiography Patient surface contouring devices Educated guess of edges of tumor and organs-at-risk Roughly shaped fields related to Bony anatomy Radiographical projection of contrast, fiducials or tumor Dose calculation using transparant overlays 2D dose-depth curves Wide penumbra of kilovoltage, telecobalt, betatrons Techniques for accurate target volume definition could be applied for t e historical niche of proton therapy indicatio s when m st of the patien s in photon therapy were treated by fields widely (wishfully) encompassing the tumours.