Research Masterclass in Radiotherapy Physics 2017

Image guidance in light ion RT

Light ion RT has always been IGRT

Michael Goitein using orthogonal x-rays to position a patient at the Harvard Cyclotron facility in Boston in the 1970’s

Unfortunately, 40 years later, we’re still doing it more or less the same way

Oliver Jäkel

Medical Physics

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Motion mitigation techniques

Gantry 2 at PSI

New Delivery techniques: • Gating • Fast rescanning

• Tracking, Gated retracking, … • Simulated scattering • Very fast delivery

Image guided p-RT (lacking behind) • Cone beam CT • CT on rails • Ultrasound guidance • Optical systems • MR guidance 4D Treatment Planning strategies: • Calculate accumulated dose • Optimize treatment parameters • Robust optimization M. Bangert, PMB 2013

Page 16 Oliver Jäkel Only recently manufacturers offer CBCT Medical Physics