Metal artifacts in computed tomography for radiation therapy planning: dosimetric effects and impact of metal artifact reduction

D Giantsoudi, B De Man, J Verburg… - Physics in Medicine …, 2017 - iopscience.iop.org
A significant and increasing number of patients receiving radiation therapy present with
metal objects close to, or even within, the treatment area, resulting in artifacts in computed …

Can CT scan protocols used for radiotherapy treatment planning be adjusted to optimize image quality and patient dose? A systematic review

AT Davis, AL Palmer, A Nisbet - The British journal of radiology, 2017 - academic.oup.com
This article reviews publications related to the use of CT scans for radiotherapy treatment
planning, specifically the impact of scan protocol changes on CT number and treatment …

Evaluation of two commercial CT metal artifact reduction algorithms for use in proton radiotherapy treatment planning in the head and neck area

KM Andersson, CV Dahlgren, J Reizenstein… - Medical …, 2018 - Wiley Online Library
Purpose To evaluate two commercial CT metal artifact reduction (MAR) algorithms for use in
proton treatment planning in the head and neck (H&N) area. Methods An anthropomorphic …

Deep learning-based metal artifact reduction using cycle-consistent adversarial network for intensity-modulated head and neck radiation therapy treatment planning

Y Koike, Y Anetai, H Takegawa, S Ohira, S Nakamura… - Physica Medica, 2020 - Elsevier
Purpose To develop a deep learning-based metal artifact reduction (DL-MAR) method using
unpaired data and to evaluate its dosimetric impact in head and neck intensity-modulated …

Metal artifact reduction for orthopedic implants (O-MAR): usefulness in CT evaluation of reverse total shoulder arthroplasty

E Shim, Y Kang, JM Ahn, E Lee… - American Journal of …, 2017 - Am Roentgen Ray Soc
OBJECTIVE. The objective of this study is to evaluate the effect of the metal artifact reduction
algorithm for orthopedic implants (O-MAR) on CT image quality for patients with reverse total …

Computed tomography imaging parameters for inhomogeneity correction in radiation treatment planning

IJ Das, CW Cheng, M Cao… - Journal of Medical …, 2016 - journals.lww.com
Modern treatment planning systems provide accurate dosimetry in heterogeneous media
(such as a patient'body) with the help of tissue characterization based on computed …

Potential of Metal Artifact Reduction (MAR) and Deep Learning-based Reconstruction (DLR) integration in CT Metal Artifact Correction: A review

MM Njiti, ND Osman, MS Mansor, NA Rabaiee… - Radiation Physics and …, 2024 - Elsevier
Computed Tomography (CT) is essential for precise medical diagnostics, yet metal implants
often induce disruptive image artifacts. Metal Artifact Reduction (MAR) algorithms have …

Contouring and dose calculation in head and neck cancer radiotherapy after reduction of metal artifacts in CT images

CR Hansen, RL Christiansen, EL Lorenzen… - Acta …, 2017 - Taylor & Francis
Background: Delineation accuracy of the gross tumor volume (GTV) in radiotherapy
planning for head and neck (H&N) cancer is affected by computed tomography (CT) artifacts …

The application of metal artifact reduction methods on computed tomography scans for radiotherapy applications: A literature review

S Puvanasunthararajah, D Fontanarosa… - Journal of Applied …, 2021 - Wiley Online Library
Metal artifact reduction (MAR) methods are used to reduce artifacts from metals or metal
components in computed tomography (CT). In radiotherapy (RT), CT is the most used …

Geometric and dosimetric impact of 3D generative adversarial network-based metal artifact reduction algorithm on VMAT and IMPT for the head and neck region

M Nakamura, M Nakao, K Imanishi, H Hirashima… - Radiation …, 2021 - Springer
Background We investigated the geometric and dosimetric impact of three-dimensional (3D)
generative adversarial network (GAN)-based metal artifact reduction (MAR) algorithms on …