ArticlePhysics and imaging in radiation oncology2020
Clinical workflow for treating patients with a metallic hip prosthesis using magnetic resonance imaging-guided radiotherapy.
Article in Physics and imaging in radiation oncology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 16 citations in OpenAlex.
- Magnetic Resonance Guided Radical Radiation Therapy for Prostate Cancer in the Presence of Bilateral Hip Prostheses: First Experience With a 1.5 T Magnetic Resonance Linear Accelerator.Advances in radiation oncology · 2026Article
- From CBCT to MR-Linac in Image-Guided Prostate Cancer Radiotherapy Towards Treatment Personalization.Current oncology (Toronto, Ont.) · 2025Review
- Evaluation of the impact of cardiac implantable electronic devices on cine MRI for real-time adaptive cardiac radioablation on a 1.5 T MR-linac.Medical physics · 2025Article
- Multi-institutional experience treating patients with cardiac devices on a 1.5 Tesla magnetic resonance-linear accelerator and workflow development for thoracic treatments.Physics and imaging in radiation oncology · 2024Article
- Review
- Characterization of spatial integrity with active and passive implants in a low-field magnetic resonance linear accelerator scanner.Physics and imaging in radiation oncology · 2024Article
- Geometric distortion caused by metallic femoral head prosthesis in prostate cancer imaging on an MR Linac: in-vivo measurements of spatial deformation.The British journal of radiology · 2024Article
- MRI-Guided Radiation Therapy for Prostate Cancer: The Next Frontier in Ultrahypofractionation.Cancers · 2023Review
- Rapid distortion correction enables accurate magnetic resonance imaging-guided real-time adaptive radiotherapy.Physics and imaging in radiation oncology · 2023Article
Corrections and comments
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Authors and funding
6 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
BACKGROUND & PURPOSE: Metallic prostheses distort the magnetic field during magnetic resonance imaging (MRI), leading to geometric distortions and signal loss. The purpose of this work was to develop a method to determine eligibility for MRI-guided radiotherapy (MRIgRT) on a per patient basis by estimating the magnitude of geometric distortions inside the clinical target volume (CTV). MATERIALS &
methodsThree patients with prostate cancer and hip prosthesis, treated using MRIgRT, were included. Eligibility for MRIgRT was based on computed tomography and associated CTV delineations, together with a field-distortion (B0) map and anatomical images acquired during MR simulation. To verify the method, B0 maps made during MR simulation and each MRIgRT treatment fraction were compared.
resultsEstimates made during MR simulation of the magnitude of distortions inside the CTV were 0.43 mm, 0.19 mm and 2.79 mm compared to the average over all treatment fractions of 1.40 mm, 0.32 mm and 1.81 mm, per patient respectively.
conclusionsB0 map acquisitions prior to treatment can be used to estimate the magnitude of distortions during MRIgRT to guide the decision on eligibility for MRIgRT of prostate cancer patients with metallic hip implants.
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