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ISPSeminar

Title: "Dedicated image processing tools for proton imaging"

Speaker: Sylvain Deffet

Location: "Shannon" Seminar Room, Place du Levant 3, Maxwell Building, 1st floor

Date / Time (duration): Wednesday 04/10/2017, 10h00 (~45')

Abstract: Thanks to the finite range of the protons, proton-therapy is of undeniable therapeutic interest. However, proton treatment planning suffers from uncertainties in the computation of the protons range. As a means of measuring the proton energy loss along the path of the beam, proton radiography could be used to significantly increase the accuracy of proton therapy. We developed with this aim in mind a new prototype of proton imaging system based on multi-layer ionization chambers. The first tests on patients are planned end of this year.

This detector acquires proton radiographs, the pixels of which consist of depth-dose profiles. Using this third dimension of the image, we develop innovative post-processing tools to accurately compute the proton energy loss while reducing the dose to be delivered to the patient. In this talk, I will first present an introduction to proton radiography. Then I will introduce some of the image post-processing algorithms that we have implemented to perform deblurring, super-resolution and image registration with x-ray CT.




Last updated October 11, 2017, at 09:37 AM