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dc.contributor.authorTijssen, RHN
dc.contributor.authorPhilippens, MEP
dc.contributor.authorPaulson, ES
dc.contributor.authorGlitzner, M
dc.contributor.authorChugh, B
dc.contributor.authorWetscherek, A
dc.contributor.authorDubec, M
dc.contributor.authorWang, J
dc.contributor.authorvan der Heide, UA
dc.date.accessioned2019-05-13T13:38:20Z
dc.date.issued2019-03-01
dc.identifier.citationRadiotherapy and oncology : journal of the European Society for Therapeutic Radiology and Oncology, 2019, 132 pp. 114 - 120
dc.identifier.issn0167-8140
dc.identifier.urihttps://repository.icr.ac.uk/handle/internal/3223
dc.identifier.eissn1879-0887
dc.identifier.doi10.1016/j.radonc.2018.12.011
dc.description.abstractBACKGROUND: Magnetic Resonance linear accelerator (MR-linac) systems represent a new type of technology that allows for online MR-guidance for high precision radiotherapy (RT). Currently, the first MR-linac installations are being introduced clinically. Since the imaging performance of these integrated MR-linac systems is critical for their application, a thorough commissioning of the MRI performance is essential. However, guidelines on the commissioning of MR-guided RT systems are not yet defined and data on the performance of MR-linacs are not yet available. MATERIALS & METHODS: Here we describe a comprehensive commissioning protocol, which contains standard MRI performance measurements as well as dedicated hybrid tests that specifically assess the interactions between the Linac and the MRI system. The commissioning results of four MR-linac systems are presented in a multi-center study. RESULTS: Although the four systems showed similar performance in all the standard MRI performance tests, some differences were observed relating to the hybrid character of the systems. Field homogeneity measurements identified differences in the gantry shim configuration, which was later confirmed by the vendor. CONCLUSION: Our results highlight the importance of dedicated hybrid commissioning tests and the ability to compare the machines between institutes at this very early stage of clinical introduction. Until formal guidelines and tolerances are defined the tests described in this study may be used as a practical guideline. Moreover, the multi-center results provide initial bench mark data for future MR-linac installations.
dc.formatPrint-Electronic
dc.format.extent114 - 120
dc.languageeng
dc.language.isoeng
dc.publisherELSEVIER IRELAND LTD
dc.rights.urihttps://creativecommons.org/licenses/by/4.0
dc.subjectHumans
dc.subjectMagnetic Resonance Imaging
dc.subjectParticle Accelerators
dc.subjectQuality Control
dc.subjectRadiotherapy, Image-Guided
dc.titleMRI commissioning of 1.5T MR-linac systems - a multi-institutional study.
dc.typeJournal Article
dcterms.dateAccepted2018-12-11
rioxxterms.versionofrecord10.1016/j.radonc.2018.12.011
rioxxterms.licenseref.urihttps://creativecommons.org/licenses/by/4.0
rioxxterms.licenseref.startdate2019-03
rioxxterms.typeJournal Article/Review
dc.relation.isPartOfRadiotherapy and oncology : journal of the European Society for Therapeutic Radiology and Oncology
pubs.notesNot known
pubs.organisational-group/ICR
pubs.organisational-group/ICR/Primary Group
pubs.organisational-group/ICR/Primary Group/ICR Divisions
pubs.organisational-group/ICR/Primary Group/ICR Divisions/Radiotherapy and Imaging
pubs.organisational-group/ICR/Primary Group/ICR Divisions/Radiotherapy and Imaging/Radiotherapy Physics Modelling
pubs.organisational-group/ICR
pubs.organisational-group/ICR/Primary Group
pubs.organisational-group/ICR/Primary Group/ICR Divisions
pubs.organisational-group/ICR/Primary Group/ICR Divisions/Radiotherapy and Imaging
pubs.organisational-group/ICR/Primary Group/ICR Divisions/Radiotherapy and Imaging/Radiotherapy Physics Modelling
pubs.publication-statusPublished
pubs.volume132
pubs.embargo.termsNot known
icr.researchteamRadiotherapy Physics Modelling
dc.contributor.icrauthorWetscherek, Andreas


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