Proof of concept image artifact reduction by energy-modulated proton computed tomography (EMpCT)

Particle therapy treatment planning requires a precise volumetric knowledge of the patient ’s stopping power relative to water (RSP). In current clinical practice, this quantity is typically calculated using a calibration from images of the photon attenuation coefficient using single- or dual-energy x-ray computed tomography (CT) [1]. This calibration-based approach typically introduces errors in the proton beam range between 1% and up to 3% [2], which need to be considered as additional margins to the therapeutic dose.

Source: Physica Medica: European Journal of Medical Physics - January 20, 2021 Category: General Medicine Authors: Jannis Dickmann, Christina Sarosiek, Victor Rykalin, Mark Pankuch, George Coutrakon, Robert P. Johnson, Vladimir Bashkirov, Reinhard W. Schulte, Katia Parodi, Guillaume Landry, George Dedes Tags: Technical note Source Type: research