Integration of Spatial Distortion Effects in a 4D Computational Phantom for Simulation Studies in Extra-Cranial MRI-guided Radiation Therapy: Initial Results. [PDF]
, 2020 PurposeSpatial distortions in magnetic resonance imaging (MRI) are mainly caused by inhomogeneities of the static magnetic field, nonlinearities in the applied gradients, and tissue‐specific magnetic susceptibility variations.
C. Kroll +10 more
core +1 more source
Commissioning a secondary dose calculation software for a 0.35 T MR-linac [PDF]
, 2022 Secondary external dose calculations for a 0.35 T magnetic resonance image-guided radiation therapy (MRgRT) are needed within the radiation oncology community to follow safety standards set forth within the field.
Green, Olga L +3 more
core +2 more sources
How feasible is remote 3D dosimetry for MR guided Radiation Therapy (MRgRT)? [PDF]
Journal of Physics: Conference Series, 2017 To develop and apply a remote dosimetry protocol with PRESAGE® radiochromic plastic and optical-CT readout in the validation of MRI guided radiation therapy (MRgRT) treatments (MRIdian® by ViewRay®). Through multi-institutional collaboration we performed PRESAGE® dosimetry studies in 4ml cuvettes to investigate dose-response linearity, MR-compatibility,
S Mein +10 more
openaire +1 more source
Clinical and Translational Radiation Oncology, 2023 Background: Treatment of head and neck cancer on linear accelerators with on-board magnetic resonance imaging (MR-linac) might be beneficial to reduce side effects and increase accuracy.
Mireille Conrad +7 more
doaj +1 more source
Characterization and longitudinal assessment of daily quality assurance for an MR‐guided radiotherapy (MRgRT) linac [PDF]
Journal of Applied Clinical Medical Physics, 2019 AbstractPurposeTo describe and characterize daily machine quality assurance (QA) for an MR‐guided radiotherapy (MRgRT) linac system, in addition to reporting a longitudinal assessment of the dosimetric and mechanical stability over a 7‐month period of clinical operation.MethodsQuality assurance procedures were developed to evaluate MR imaging/radiation
Mittauer, Kathryn E. +3 more
openaire +3 more sources
Magnetic Resonance Guided Radiotherapy for Rectal Cancer: Expanding Opportunities for Non-Operative Management [PDF]
, 2020 Colorectal cancer is the third most common cancer in men and the second most common in women worldwide, and the incidence is increasing among younger patients. 30% of these malignancies arise in the rectum.
Chuong, Michael
core +1 more source
Frontiers in Endocrinology, 2023 BackgroundSurgical resection is the standard of care for the treatment of pancreatic neuro-endocrine tumors (pNETs) in patients with Multiple Endocrine Neoplasia Type 1 (MEN1).
Eline N. M. van Vliembergen +8 more
doaj +1 more source
Development and evaluation of machine learning models for voxel dose predictions in online adaptive magnetic resonance guided radiation therapy [PDF]
, 2020 PURPOSE: Daily online adaptive plan quality in magnetic resonance imaging guided radiation therapy (MRgRT) is difficult to assess in relation to the fully optimized, high quality plans traditionally established offline. Machine learning prediction models
Fu, Yabo, Thomas, M Allan, Yang, Deshan
core +2 more sources
The ADAM-pelvis phantom—an anthropomorphic, deformable and multimodal phantom for MRgRT
Physics in Medicine & Biology, 2019 Applicability and accuracy of the rapidly developing tools and workflows for image-guided radiotherapy need to be validated under realistic treatment-like conditions. We present the construction of the ADAM-pelvis phantom, an anthropomorphic, deformable and multimodal (CT and MRI) phantom of the male pelvis.
N I Niebuhr +8 more
openaire +2 more sources
Bayesian Model Selection Approach to Multiple Change-Points Detection with Non-Local Prior Distributions [PDF]
, 2019 We propose a Bayesian model selection (BMS) boundary detection procedure using non-local prior distributions for a sequence of data with multiple systematic mean changes.
Dominici, Francesca +2 more
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