ArticlePhysics in medicine and biology2018
A methodology to investigate the impact of image distortions on the radiation dose when using magnetic resonance images for planning.
Article in Physics in medicine and biology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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Who cites it
16 citing papers in PubMed, 19 citations in OpenAlex.
- Comprehensive MR imaging QA of 0.35 T MR-Linac using a multi-purpose large FOV phantom: A single-institution experience.Journal of applied clinical medical physics · 2023Article
- Development of a multi-purpose quality control phantom for MRI-based treatment planning in high-dose-rate brachytherapy of cervical cancer.Journal of contemporary brachytherapy · 2023Article
- System-dependent image distortion related to gantry positions of a 0.35 T MRgRT: Characterization and the corresponding correction.Journal of applied clinical medical physics · 2023Article
- Assessment of a novel commercial large field of view phantom for comprehensive MR imaging quality assurance of a 0.35T MRgRT system.Journal of applied clinical medical physics · 2022Article
- Impact of geometric distortion on dose deviation for photon and proton treatment plans.Journal of applied clinical medical physics · 2022Article
- Dosimetric impact of geometric distortions in an MRI-only proton therapy workflow for lung, liver and pancreas.Zeitschrift fur medizinische Physik · 2022Article
- First clinical experience of correcting phantom-based image distortion related to gantry position on a 0.35T MR-Linac.Journal of applied clinical medical physics · 2021Article
- A Comparison of the Distortion in the Same Field MRI and MR-Linac System With a 3D Printed Phantom.Frontiers in oncology · 2021Article
- Characterization of radiotherapy component impact on MR imaging quality for an MRgRT system.Journal of applied clinical medical physics · 2020Article
- A modular phantom and software to characterize 3D geometric distortion in MRI.Physics in medicine and biology · 2020Article
- Evaluation of the influence of susceptibility-induced magnetic field distortions on the precision of contouring intracranial organs at risk for stereotactic radiosurgery.Physics and imaging in radiation oncology · 2020Article
- Imaging strategies in the management of gastric cancer: current role and future potential of MRI.The British journal of radiology · 2019Review
- Large field of view distortion assessment in a low-field MR-linac.Medical physics · 2019Article
- Evaluation of dosimetric uncertainty caused by MR geometric distortion in MRI-based liver SBRT treatment planning.Journal of applied clinical medical physics · 2019Article
- Evaluating the accuracy of geometrical distortion correction of magnetic resonance images for use in intracranial brain tumor radiotherapy.Reports of practical oncology and radiotherapy : journal of Greatpoland Cancer Center in Poznan and Polish Society of Radiation OncologyArticle
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Authors and funding
15 authors at 2 institutions in 1 country.
Funding
Abstract
We developed a novel technique to study the impact of geometric distortion of magnetic resonance imaging (MRI) on intensity-modulated radiation therapy treatment planning. The measured 3D datasets of residual geometric distortion (a 1.5 T MRI component of an MRI linear accelerator system) was fitted with a second-order polynomial model to map the spatial dependence of geometric distortions. Then the geometric distortion model was applied to computed tomography (CT) image and structure data to simulate the distortion of MRI data and structures. Fourteen CT-based treatment plans were selected from patients treated for gastrointestinal, genitourinary, thoracic, head and neck, or spinal tumors. Plans based on the distorted CT and structure data were generated (as the distorted plans). Dose deviations of the distorted plans were calculated and compared with the original plans to study the dosimetric impact of MRI distortion. The MRI geometric distortion led to notable dose deviations in five of the 14 patients, causing loss of target coverage of up to 3.68% and dose deviations to organs at risk in three patients, increasing the mean dose to the chest wall by up to 6.19 Gy in a gastrointestinal patient, and increases the maximum dose to the lung by 5.17 Gy in a thoracic patient.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.