Geometric distortions in clinical MRI sequences for radiotherapy: insights gained from a multicenter investigation
SW Hasler, JF Kallehauge, RH Hansen… - Acta …, 2023 - Taylor & Francis
Background As magnetic resonance imaging (MRI) becomes increasingly integrated into
radiotherapy (RT) for enhanced treatment planning and adaptation, the inherent geometric …
radiotherapy (RT) for enhanced treatment planning and adaptation, the inherent geometric …
[HTML][HTML] Audit feasibility for geometric distortion in magnetic resonance imaging for radiotherapy
M Alzahrani, DA Broadbent, R Chuter… - Physics and imaging in …, 2020 - Elsevier
Abstract Background and purpose Magnetic Resonance Imaging (MRI) is increasingly being
used in radiotherapy (RT). However, geometric distortions are a known challenge of using …
used in radiotherapy (RT). However, geometric distortions are a known challenge of using …
Reproducibility of geometric distortion in magnetic resonance imaging based on phantom studies
T Mizowaki, Y Nagata, K Okajima, M Kokubo… - Radiotherapy and …, 2000 - Elsevier
Background and purpose: Image distortion is one of the major drawbacks of magnetic
resonance (MR) imaging for use in radiotherapy treatment planning (RTTP). In this study, the …
resonance (MR) imaging for use in radiotherapy treatment planning (RTTP). In this study, the …
Quality assurance measurements of geometric accuracy for magnetic resonance imaging-based radiotherapy treatment planning
I Ranta, R Kemppainen, J Keyriläinen, S Suilamo… - Physica Medica, 2019 - Elsevier
Background Using magnetic resonance imaging (MRI) as the only imaging method for
radiotherapy treatment planning (RTP) is becoming more common as MRI-only RTP …
radiotherapy treatment planning (RTP) is becoming more common as MRI-only RTP …
Development and validation of a novel large field of view phantom and a software module for the quality assurance of geometric distortion in magnetic resonance …
T Torfeh, R Hammoud, M McGarry… - Magnetic resonance …, 2015 - Elsevier
Objective To develop and validate a large field of view phantom and quality assurance
software tool for the assessment and characterization of geometric distortion in MRI …
software tool for the assessment and characterization of geometric distortion in MRI …
MRI distortion: considerations for MRI based radiotherapy treatment planning
Distortion in magnetic resonance images needs to be taken into account for the purposes of
radiotherapy treatment planning (RTP). A commercial MRI grid phantom was scanned on …
radiotherapy treatment planning (RTP). A commercial MRI grid phantom was scanned on …
MRI-related geometric distortions in stereotactic radiotherapy treatment planning: evaluation and dosimetric impact
EP Pappas, M Alshanqity… - … in cancer research …, 2017 - journals.sagepub.com
In view of their superior soft tissue contrast compared to computed tomography, magnetic
resonance images are commonly involved in stereotactic radiosurgery/radiotherapy …
resonance images are commonly involved in stereotactic radiosurgery/radiotherapy …
[HTML][HTML] Evaluating the repeatability and set-up sensitivity of a large field of view distortion phantom and software for magnetic resonance-only radiotherapy
J Wyatt, S Hedley, E Johnstone, R Speight… - Physics and Imaging in …, 2018 - Elsevier
Abstract Background and purpose Magnetic Resonance (MR)-only radiotherapy requires
geometrically accurate MR images over the full scanner Field of View (FoV). This study …
geometrically accurate MR images over the full scanner Field of View (FoV). This study …
Characterization of 3D geometric distortion of magnetic resonance imaging scanners commissioned for radiation therapy planning
T Torfeh, R Hammoud, G Perkins, M McGarry… - Magnetic resonance …, 2016 - Elsevier
Objective To develop a method for the assessment and characterization of 3D geometric
distortion as part of routine quality assurance for MRI scanners commissioned for Radiation …
distortion as part of routine quality assurance for MRI scanners commissioned for Radiation …
Quantification of geometric distortion in magnetic resonance imaging for radiation therapy treatment planning
Results The mean geometric distortion for T1 weighted imaging performed with a 1.5 T
diagnostic scanner was 1.50 mm at 200 Hz/pixel. Geometric distortion decreased, as …
diagnostic scanner was 1.50 mm at 200 Hz/pixel. Geometric distortion decreased, as …