Shading correction for on‐board cone‐beam CT in radiation therapy using planning MDCT images

T Niu, M Sun, J Star‐Lack, H Gao, Q Fan… - Medical …, 2010 - Wiley Online Library
Purpose: Applications of cone‐beam CT (CBCT) to image‐guided radiation therapy (IGRT)
are hampered by shading artifacts in the reconstructed images. These artifacts are mainly …

Shading correction algorithm for improvement of cone-beam CT images in radiotherapy

TE Marchant, CJ Moore, CG Rowbottom… - Physics in Medicine …, 2008 - iopscience.iop.org
Cone-beam CT (CBCT) images have recently become an established modality for treatment
verification in radiotherapy. However, identification of soft-tissue structures and the …

Quantitative cone‐beam CT imaging in radiation therapy using planning CT as a prior: first patient studies

T Niu, A Al‐Basheer, L Zhu - Medical physics, 2012 - Wiley Online Library
Purpose: Quantitative cone‐beam CT (CBCT) imaging is on increasing demand for high‐
performance image guided radiation therapy (IGRT). However, the current CBCT has poor …

A practical cone-beam CT scatter correction method with optimized Monte Carlo simulations for image-guided radiation therapy

Y Xu, T Bai, H Yan, L Ouyang, A Pompos… - Physics in Medicine …, 2015 - iopscience.iop.org
Cone-beam CT (CBCT) has become the standard image guidance tool for patient setup in
image-guided radiation therapy. However, due to its large illumination field, scattered …

Streaking artifacts reduction in four‐dimensional cone‐beam computed tomography

S Leng, J Zambelli, R Tolakanahalli, B Nett… - Medical …, 2008 - Wiley Online Library
Cone‐beam computed tomography (CBCT) using an “on‐board” x‐ray imaging device
integrated into a radiation therapy system has recently been made available for patient …

ScatterNet: a convolutional neural network for cone‐beam CT intensity correction

DC Hansen, G Landry, F Kamp, M Li, C Belka… - Medical …, 2018 - Wiley Online Library
Purpose To demonstrate a proof‐of‐concept for fast cone‐beam CT (CBCT) intensity
correction in projection space by the use of deep learning. Methods The CBCT scans and …

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 …

Scatter correction for cone‐beam CT in radiation therapy

L Zhu, Y Xie, J Wang, L Xing - Medical physics, 2009 - Wiley Online Library
Cone‐beam CT (CBCT) is being increasingly used in modern radiation therapy for patient
setup and adaptive replanning. However, due to the large volume of x‐ray illumination …

Iterative CT shading correction with no prior information

P Wu, X Sun, H Hu, T Mao, W Zhao… - Physics in Medicine …, 2015 - iopscience.iop.org
Shading artifacts in CT images are caused by scatter contamination, beam-hardening effect
and other non-ideal imaging conditions. The purpose of this study is to propose a novel and …

Image‐based shading correction for narrow‐FOV truncated pelvic CBCT with deep convolutional neural networks and transfer learning

M Rossi, G Belotti, C Paganelli, A Pella… - Medical …, 2021 - Wiley Online Library
Purpose: Cone beam computed tomography (CBCT) is a standard solution for in‐room
image guidance for radiation therapy. It is used to evaluate and compensate for …