Status and innovations in pre-treatment CT imaging for proton therapy

P Wohlfahrt, C Richter - The British journal of radiology, 2020 - academic.oup.com
Pre-treatment CT imaging is a topic of growing importance in particle therapy. Improvements
in the accuracy of stopping-power prediction are demanded to allow for a dose conformality …

Dual-and multi-energy CT for particle stopping-power estimation: current state, challenges and potential

M Yang, P Wohlfahrt, C Shen… - Physics in Medicine & …, 2023 - iopscience.iop.org
Range uncertainty has been a key factor preventing particle radiotherapy from reaching its
full physical potential. One of the main contributing sources is the uncertainty in estimating …

Improving radiation physics, tumor visualisation, and treatment quantification in radiotherapy with spectral or dual‐energy CT

MF Kruis - Journal of applied clinical medical physics, 2022 - Wiley Online Library
Over the past decade, spectral or dual‐energy CT has gained relevancy, especially in
oncological radiology. Nonetheless, its use in the radiotherapy (RT) clinic remains limited …

Dual-energy computed tomography for prediction of loco-regional recurrence after radiotherapy in larynx and hypopharynx squamous cell carcinoma

H Bahig, A Lapointe, S Bedwani, J de Guise… - European Journal of …, 2019 - Elsevier
Purpose To investigate the role of quantitative pre-treatment dual-energy computed
tomography (DECT) for prediction of loco-regional recurrence (LRR) in patients with …

Quantitative imaging performance of MARS spectral photon‐counting CT for radiotherapy

M Simard, RK Panta, ST Bell, APH Butler… - Medical …, 2020 - Wiley Online Library
Purpose To evaluate the quantitative imaging performance of a spectral photon‐counting
computed tomography (SPCCT) scanner for radiotherapy applications. An experimental …

Comparison of dual-energy CT with positron emission tomography for lung perfusion imaging in patients with non-small cell lung cancer

M Gaudreault, J Korte, N Bucknell… - Physics in Medicine …, 2023 - iopscience.iop.org
Objective. Functional lung avoidance (FLA) radiotherapy treatment aims to spare lung
regions identified as functional from imaging. Perfusion contributes to lung function and can …

The potential of photon-counting CT for quantitative contrast-enhanced imaging in radiotherapy

M Simard, A Lapointe, A Lalonde… - Physics in Medicine …, 2019 - iopscience.iop.org
The aim of this study is to use a simulation environment to evaluate the potential of using
photon-counting CT (PCCT) against dual-energy CT (DECT) in the context of quantitative …

Noise suppression in image-domain multi-material decomposition for dual-energy CT

Y Jiang, Y Xue, Q Lyu, L Xu, C Luo… - IEEE Transactions …, 2019 - ieeexplore.ieee.org
Objective: Dual-energy CT (DECT) strengthens the material characterization and
quantification due to its capability of material discrimination. The image-domain multi …

Influence of intravenous contrast agent on dose calculation in proton therapy using dual energy CT

A Lalonde, Y Xie, B Burgdorf, S O'Reilly… - Physics in Medicine …, 2019 - iopscience.iop.org
The purpose of this study is to evaluate the effect of an intravenous (IV) contrast agent on
proton therapy dose calculation using dual-energy computed tomography (DECT). Two …

Dual virtual non-contrast imaging: a Bayesian quantitative approach to determine radiotherapy quantities from contrast-enhanced DECT images

MB Soltani, H Bouchard - Physics in Medicine & Biology, 2024 - iopscience.iop.org
Objective. Contrast agents in computed tomography (CT) scans can compromise the
accuracy of dose calculations in radiation therapy planning, especially for particle therapy …