From Hadrons to Therapy: Fundamental Physics Driving New Medical Advances

Session

Practical and clinical aspects of radiotherapy

9 Sept 2022, 09:00

Aula Leonardi (ECT*)

Conveners

Practical and clinical aspects of radiotherapy

• Francesco Tommasino (University of Trento, Trento, Italy)

39. Proton imaging for hadrontherapy: status and prospects

George Dedes (Department of Medical Physics, Ludwig-Maximilians-Universität München, Germany)

09/09/2022, 09:00

Hadrontherapy and associated technologies

The currently established imaging modality used for treatment planning in ion therapy is x-ray computed tomography (CT). Due to the non-bijective relation between the photon attenuation coefficient, reconstructed with x-ray CT, and the relative stopping power (RSP) required for ion therapy treatment planning, RSP errors of about 3% may occur [1]. The use of ion CT promises to yield improved...

36. Proton therapy x-ray CT calibration by proton tomography

Elena Fogazzi (University of Trento, Trento, Italy)

09/09/2022, 09:40

Hadrontherapy and associated technologies

Purpose: The dose computation in the proton treatment planning system (TPS) is based on the proton relative stopping power normalized to liquid water (RSP) distribution in the target volume. Presently, the RSP maps are extracted from x-ray computed tomographies (xCT) of the patient. Namely, the photon attenuation coefficients (CT Hounsfield Units – HU), are translated into RSP values using...