Iterative algorithm for proton CT image reconstruction
US11908045B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 27, 2021 |
| Grant date | Feb 20, 2024 |
| Priority date | — |
| Expiry date | Aug 26, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2211/424
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Described herein is a system for 3D proton imaging encompassing both proton radiography (pRad) and proton CT (pCT). The disclosed system can reduce range uncertainties, while providing a fast and efficient check of patient set up and integrated range along a beam's eye view just before treatment. The disclosed system provides a complete solution to the range inaccuracy problem in proton therapy, substantially reducing the uncertainties of treatment planning by directly measuring relative stopping power without being affected by image artifacts and with much lower dose to the patient than comparable x-ray images. Also described herein is a proton imaging algorithm for prompt iterative 3D pCT image reconstruction, where each iteration is fast and efficient, and the number of iterations is minimized. The method offers a unique solution that optimally fits different protons and does not depend on the starting point for the first iteration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.