ArticleTechnology in cancer research & treatment2017
MRI-Related Geometric Distortions in Stereotactic Radiotherapy Treatment Planning: Evaluation and Dosimetric Impact.
Article in Technology in cancer research & treatment, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers, 1 of them a synthesis that pooled it.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
43 citing papers in PubMed, 1 synthesis or guideline pooled it, 72 citations in OpenAlex.
- Quality requirements for MRI simulation in cranial stereotactic radiotherapy: a guideline from the German Taskforce "Imaging in Stereotactic Radiotherapy".Strahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al] · 2024Guideline
- Geometric distortion in computed tomography scans for radiotherapy: Quantification and quality assurance implications.Journal of applied clinical medical physics · 2026Article
- A feasibility study on multimodal CT-MRI registration using segmentation aid and CoLlAGe feature extraction approach.Abdominal radiology (New York) · 2026Article
- Improving Spatial Accuracy of MRI in the Presence of Metal-induced Geometric Distortions.Investigative radiology · 2025Article
- Characterizing geometrical distortions in MRI for radiotherapy: Evaluating MR-SIM protocols and dose accuracy in stereotactic radiosurgery using AAPM TG-284 criteria.Journal of applied clinical medical physics · 2025Article
- Characterization and inter-scanner reproducibility of geometric distortion on a small footprint, high-performance, head-specific 0.5 T scanner.Medical physics · 2025Article
- Use of a virtual phantom to assess the capability of a treatment planning system to perform magnetic resonance image distortion correction.Physical and engineering sciences in medicine · 2025Article
- 3D quantification of metal-induced geometric distortions in MRI.Scientific reports · 2025Article
- Virtual phantom methodology for assessment of MRI distortion correction in high-precision stereotactic radiosurgery treatment planning.Frontiers in oncology · 2025Article
- FCB-CHOPS: An Evolution of a Commonly Used Acronym for Evaluating Radiation Treatment Plans.Advances in radiation oncology · 2025Article
- Evaluating stereotactic accuracy with patient-specific MRI distortion corrections for frame-based radiosurgery.Journal of applied clinical medical physics · 2024Article
- Geometrical accuracy of magnetic resonance imaging for ocular proton therapy planning.Physics and imaging in radiation oncology · 2024Article
- Commissioning and implementing a Quality Assurance program for dedicated radiation oncology MRI scanners.Journal of applied clinical medical physics · 2024Article
- Assessing the impact of distortion correction on Gamma Knife radiosurgery for multiple metastasis: Volumetric and dosimetric analysis.Brain & spine · 2024Article
- Clinical feasibility of a commercially available MRI-only method for radiotherapy treatment planning of the brain.Journal of applied clinical medical physics · 2023Article
- Clinical implementation of magnetic resonance imaging simulation for radiation oncology planning: 5 year experience.Radiation oncology (London, England) · 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
- Characterizing geometric distortions of 3D sequences in clinical head MRI.Magma (New York, N.Y.) · 2022Article
- Review
- Evaluation of the ability of the Brainlab Elements Cranial Distortion Correction algorithm to correct clinically relevant MRI distortions for cranial SRT.Strahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al] · 2022Article
Corrections and comments
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Authors and funding
8 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In view of their superior soft tissue contrast compared to computed tomography, magnetic resonance images are commonly involved in stereotactic radiosurgery/radiotherapy applications for target delineation purposes. It is known, however, that magnetic resonance images are geometrically distorted, thus deteriorating dose delivery accuracy. The present work focuses on the assessment of geometric distortion inherent in magnetic resonance images used in stereotactic radiosurgery/radiotherapy treatment planning and attempts to quantitively evaluate the consequent impact on dose delivery. The geometric distortions for 3 clinical magnetic resonance protocols (at both 1.5 and 3.0 T) used for stereotactic radiosurgery/radiotherapy treatment planning were evaluated using a recently proposed phantom and methodology. Areas of increased distortion were identified at the edges of the imaged volume which was comparable to a brain scan. Although mean absolute distortion did not exceed 0.5 mm on any spatial axis, maximum detected control point disposition reached 2 mm. In an effort to establish what could be considered as acceptable geometric uncertainty, highly conformal plans were utilized to irradiate targets of different diameters (5-50 mm). The targets were mispositioned by 0.5 up to 3 mm, and dose-volume histograms and plan quality indices clinically used for plan evaluation and acceptance were derived and used to investigate the effect of geometrical uncertainty (distortion) on dose delivery accuracy and plan quality. The latter was found to be strongly dependent on target size. For targets less than 20 mm in diameter, a spatial disposition of the order of 1 mm could significantly affect (>5%) plan acceptance/quality indices. For targets with diameter greater than 2 cm, the corresponding disposition was found greater than 1.5 mm. Overall results of this work suggest that efficacy of stereotactic radiosurgery/radiotherapy applications could be compromised in case of very small targets lying distant from the scanner's isocenter (eg, the periphery of the brain).
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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.