Modelling the physics in the iterative reconstruction for transmission computed tomography
There is an increasing interest in iterative reconstruction (IR) as a key tool to improve quality
and increase applicability of x-ray CT imaging. IR has the ability to significantly reduce …
and increase applicability of x-ray CT imaging. IR has the ability to significantly reduce …
Image reconstruction and scan configurations enabled by optimization-based algorithms in multispectral CT
Optimization-based algorithms for image reconstruction in multispectral (or photon-counting)
computed tomography (MCT) remains a topic of active research. The challenge of …
computed tomography (MCT) remains a topic of active research. The challenge of …
Acuros CTS: A fast, linear Boltzmann transport equation solver for computed tomography scatter–Part I: Core algorithms and validation
Purpose To describe Acuros® CTS, a new software tool for rapidly and accurately estimating
scatter in x‐ray projection images by deterministically solving the linear Boltzmann transport …
scatter in x‐ray projection images by deterministically solving the linear Boltzmann transport …
Simultaneous motion estimation and image reconstruction (SMEIR) for 4D cone‐beam CT
Purpose: Image reconstruction and motion model estimation in four‐dimensional cone‐
beam CT (4D‐CBCT) are conventionally handled as two sequential steps. Due to the limited …
beam CT (4D‐CBCT) are conventionally handled as two sequential steps. Due to the limited …
Scatter artifacts removal using learning-based method for CBCT in IGRT system
S Xie, C Yang, Z Zhang, H Li - Ieee Access, 2018 - ieeexplore.ieee.org
Cone-beam-computed tomography (CBCT) has shown enormous potential in recent years,
but it is limited by severe scatter artifacts. This paper proposes a scatter-correction algorithm …
but it is limited by severe scatter artifacts. This paper proposes a scatter-correction algorithm …
A model‐based scatter artifacts correction for cone beam CT
W Zhao, D Vernekohl, J Zhu, L Wang, L Xing - Medical physics, 2016 - Wiley Online Library
Purpose: Due to the increased axial coverage of multislice computed tomography (CT) and
the introduction of flat detectors, the size of x‐ray illumination fields has grown dramatically …
the introduction of flat detectors, the size of x‐ray illumination fields has grown dramatically …
Self-supervised learning for CT image denoising and reconstruction: a review
K Choi - Biomedical Engineering Letters, 2024 - Springer
This article reviews the self-supervised learning methods for CT image denoising and
reconstruction. Currently, deep learning has become a dominant tool in medical imaging as …
reconstruction. Currently, deep learning has become a dominant tool in medical imaging as …
Patient-specific scatter correction for flat-panel detector-based cone-beam CT imaging
A patient-specific scatter correction algorithm is proposed to mitigate scatter artefacts in cone-
beam CT (CBCT). The approach belongs to the category of convolution-based methods in …
beam CT (CBCT). The approach belongs to the category of convolution-based methods in …
Adaptive radiotherapy with an average anatomy model: evaluation and quantification of residual deformations in head and neck cancer patients
S Van Kranen, A Mencarelli, S van Beek… - Radiotherapy and …, 2013 - Elsevier
Background and purpose To develop and validate an adaptive intervention strategy for
radiotherapy of head-and-neck cancer that accounts for systematic deformations by …
radiotherapy of head-and-neck cancer that accounts for systematic deformations by …
A moving blocker system for cone‐beam computed tomography scatter correction
Purpose: Scatter contamination in cone‐beam computed tomography (CBCT) degrades the
image quality by introducing shading artifacts. A moving‐blocker‐based approach has been …
image quality by introducing shading artifacts. A moving‐blocker‐based approach has been …