{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,21]],"date-time":"2026-10-21T20:54:57Z","timestamp":1792616097201,"version":"4.5.0"},"reference-count":12,"publisher":"IOP Publishing","issue":"2","license":[{"start":{"date-parts":[[2018,1,10]],"date-time":"2018-01-10T00:00:00Z","timestamp":1515542400000},"content-version":"vor","delay-in-days":9,"URL":"https:\/\/publishingsupport.iopscience.iop.org\/iop-standard\/v1"},{"start":{"date-parts":[[2018,1,10]],"date-time":"2018-01-10T00:00:00Z","timestamp":1515542400000},"content-version":"tdm","delay-in-days":9,"URL":"https:\/\/iopscience.iop.org\/info\/page\/text-and-data-mining"}],"content-domain":{"domain":["iopscience.iop.org"],"crossmark-restriction":false},"short-container-title":["Phys. Med. Biol."],"published-print":{"date-parts":[[2018,1,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>The purpose of this study is to investigate the attenuation characteristics of a novel radiofrequency (RF) coil, which is the first coil that is solely dedicated to MR guided radiotherapy with a 1.5 T MR-linac. Additionally, we investigated the impact of the treatment beam on the MRI performance of this RF coil.<\/jats:p>\n                  <jats:p>First, the attenuation characteristics of the RF coil were characterized. Second, we investigated the impact of the treatment beam on the MRI performance of the RF coil. We additionally demonstrated the ability of the anterior coil to attenuate returning electrons and thereby reducing the dose to the skin at the distal side of the treatment beam.<\/jats:p>\n                  <jats:p>Intensity modulated radiation therapy simulation of a clinically viable treatment plan for spinal bone metastasis shows a decrease of the dose to the planned tumor volume of 1.8% as a result of the MR coil around the patient. Ionization chamber and film measurements show that the anterior and posterior coil attenuate the beam homogeneously by 0.4% and 2.2%, respectively. The impact of the radiation resulted in a slight drop of the time-course signal-to-noise ratio and was dependent on imaging parameters. However, we could not observe any image artifacts resulting from this irradiation in any situation.<\/jats:p>\n                  <jats:p>In conclusion, the investigated MR-coil can be utilized for treatments with the 1.5 T-linac system. However, there is still room for improvement when considering both the dosimetric and imaging performance of the coil.<\/jats:p>","DOI":"10.1088\/1361-6560\/aaa303","type":"journal-article","created":{"date-parts":[[2017,12,20]],"date-time":"2017-12-20T06:15:15Z","timestamp":1513750515000},"page":"025014","update-policy":"https:\/\/doi.org\/10.1088\/crossmark-policy","source":"Crossref","is-referenced-by-count":32,"title":["Characterization of the first RF coil dedicated to 1.5 T MR guided radiotherapy"],"prefix":"10.1088","volume":"63","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7818-7555","authenticated-orcid":false,"given":"Stan J","family":"Hoogcarspel","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Stefan E","family":"Zijlema","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rob H N","family":"Tijssen","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Linda G W","family":"Kerkmeijer","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ina M","family":"J\u00fcrgenliemk-Schulz","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jan J W","family":"Lagendijk","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bas W","family":"Raaymakers","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"266","published-online":{"date-parts":[[2018,1,10]]},"reference":[{"key":"pmbaaa303bib001","doi-asserted-by":"publisher","first-page":"735","DOI":"10.1088\/0031-9155\/55\/3\/013","type":"journal-article","article-title":"Radiation induced currents in MRI RF coils: application to linac\/MRI integration","volume":"55","author":"Burke","year":"2010","journal-title":"Phys. Med. Biol."},{"key":"pmbaaa303bib002","doi-asserted-by":"publisher","first-page":"6139","DOI":"10.1118\/1.4752422","type":"journal-article","article-title":"Effect of radiation induced current on the quality of MR images in an integrated linac-MR system","volume":"39","author":"Burke","year":"2012","journal-title":"Med. Phys."},{"key":"pmbaaa303bib003","doi-asserted-by":"publisher","first-page":"5808","DOI":"10.1118\/1.4963803","type":"journal-article","article-title":"Influence of standard RF coil materials on surface and buildup dose from a 6 MV photon beam in magnetic field","volume":"43","author":"Ghila","year":"2016","journal-title":"Med. Phys."},{"key":"pmbaaa303bib004","doi-asserted-by":"publisher","first-page":"754","DOI":"10.1118\/1.3539725","type":"journal-article","article-title":"GPUMCD: a new GPU-oriented Monte Carlo dose calculation platform","volume":"38","author":"Hissoiny","year":"2011","journal-title":"Med. Phys."},{"key":"pmbaaa303bib005","doi-asserted-by":"publisher","first-page":"1925","DOI":"10.1088\/0031-9155\/58\/6\/1925","type":"journal-article","article-title":"The feasibility of using a conventional flexible RF coil for an online MR-guided radiotherapy treatment","volume":"58","author":"Hoogcarspel","year":"2013","journal-title":"Phys. Med. Biol."},{"key":"pmbaaa303bib006","doi-asserted-by":"publisher","first-page":"1439","DOI":"10.1002\/mrm.20713","type":"journal-article","article-title":"Image reconstruction in SNR units: a general method for SNR measurement","volume":"54","author":"Kellman","year":"2005","journal-title":"Magn. Reson. Med."},{"key":"pmbaaa303bib007","doi-asserted-by":"publisher","first-page":"25","DOI":"10.1016\/j.radonc.2007.10.034","type":"journal-article","article-title":"MRI\/linac integration","volume":"86","author":"Lagendijk","year":"2008","journal-title":"Radiother. Oncol."},{"key":"pmbaaa303bib008","doi-asserted-by":"publisher","first-page":"1363","DOI":"10.1088\/0031-9155\/50\/7\/002","type":"journal-article","article-title":"Integrating a MRI scanner with a 6 MV radiotherapy accelerator: dose increase at tissue-air interfaces in a lateral magnetic field due to returning electrons","volume":"50","author":"Raaijmakers","year":"2005","journal-title":"Phys. Med. Biol."},{"key":"pmbaaa303bib009","doi-asserted-by":"publisher","first-page":"N229","DOI":"10.1088\/0031-9155\/54\/12\/N01","type":"journal-article","article-title":"Integrating a 1.5 T MRI scanner with a 6 MV accelerator: proof of concept","volume":"54","author":"Raaymakers","year":"2009","journal-title":"Phys. Med. Biol."},{"key":"pmbaaa303bib010","doi-asserted-by":"publisher","first-page":"L41","DOI":"10.1088\/1361-6560\/aa9517","type":"journal-article","article-title":"First patients treated with a 1.5 T MRI-Linac: clinical proof of concept of a high-precision, high-field MRI guided radiotherapy treatment","volume":"62","author":"Raaymakers","year":"2017","journal-title":"Phys. Med. Biol."},{"key":"pmbaaa303bib011","doi-asserted-by":"publisher","first-page":"895","DOI":"10.1002\/mrm.21728","type":"journal-article","article-title":"Comprehensive quantification of signal-to-noise ratio and g-factor for image-based and k-space-based parallel imaging reconstructions","volume":"60","author":"Robson","year":"2008","journal-title":"Magn. Reson. Med."},{"key":"pmbaaa303bib012","doi-asserted-by":"publisher","first-page":"87","DOI":"10.1016\/S0730-725X(97)00199-9","type":"journal-article","article-title":"Estimation of the noise in magnitude MR images","volume":"16","author":"Sijbers","year":"1998","journal-title":"Magn. Reson. Imaging"}],"container-title":["Physics in Medicine &amp; Biology"],"original-title":[],"link":[{"URL":"http:\/\/stacks.iop.org\/0031-9155\/63\/i=2\/a=025014?key=crossref.ac7014935fbc50f0ab0dc7a191e49801","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/iopscience.iop.org\/article\/10.1088\/1361-6560\/aaa303\/pdf","content-type":"application\/pdf","content-version":"am","intended-application":"text-mining"},{"URL":"http:\/\/stacks.iop.org\/0031-9155\/63\/i=2\/a=025014\/pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/iopscience.iop.org\/article\/10.1088\/1361-6560\/aaa303","content-type":"text\/html","content-version":"am","intended-application":"text-mining"},{"URL":"https:\/\/iopscience.iop.org\/article\/10.1088\/1361-6560\/aaa303","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/iopscience.iop.org\/article\/10.1088\/1361-6560\/aaa303\/pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/iopscience.iop.org\/article\/10.1088\/1361-6560\/aaa303\/pdf","content-type":"application\/pdf","content-version":"am","intended-application":"syndication"},{"URL":"https:\/\/iopscience.iop.org\/article\/10.1088\/1361-6560\/aaa303\/pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"syndication"},{"URL":"http:\/\/iopscience.iop.org\/article\/10.1088\/1361-6560\/aaa303\/pdf","content-type":"application\/pdf","content-version":"am","intended-application":"similarity-checking"},{"URL":"http:\/\/stacks.iop.org\/0031-9155\/63\/i=2\/a=025014\/pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"similarity-checking"},{"URL":"http:\/\/stacks.iop.org\/0031-9155\/63\/i=2\/a=025014?key=crossref.ac7014935fbc50f0ab0dc7a191e49801","content-type":"text\/html","content-version":"vor","intended-application":"similarity-checking"},{"URL":"https:\/\/iopscience.iop.org\/article\/10.1088\/1361-6560\/aaa303\/pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,4,11]],"date-time":"2026-04-11T13:26:51Z","timestamp":1775914011000},"score":1,"resource":{"primary":{"URL":"https:\/\/iopscience.iop.org\/article\/10.1088\/1361-6560\/aaa303"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2018,1,1]]},"references-count":12,"journal-issue":{"issue":"2","published-online":{"date-parts":[[2018,1,10]]},"published-print":{"date-parts":[[2018,1,1]]}},"URL":"https:\/\/doi.org\/10.1088\/1361-6560\/aaa303","relation":{},"ISSN":["0031-9155","1361-6560"],"issn-type":[{"value":"0031-9155","type":"print"},{"value":"1361-6560","type":"electronic"}],"subject":[],"published":{"date-parts":[[2018,1,1]]},"assertion":[{"value":"Characterization of the first RF coil dedicated to 1.5 T MR guided radiotherapy","name":"article_title","label":"Article Title"},{"value":"Physics in Medicine & Biology","name":"journal_title","label":"Journal Title"},{"value":"paper","name":"article_type","label":"Article Type"},{"value":"\u00a9 2018 Institute of Physics and Engineering in Medicine. All rights, including for text and data mining, AI training, and similar technologies, are reserved.","name":"copyright_information","label":"Copyright Information"},{"value":"2017-06-01","name":"date_received","label":"Date Received","group":{"name":"publication_dates","label":"Publication dates"}},{"value":"2017-12-20","name":"date_accepted","label":"Date Accepted","group":{"name":"publication_dates","label":"Publication dates"}},{"value":"2018-01-10","name":"date_epub","label":"Online publication date","group":{"name":"publication_dates","label":"Publication dates"}}]}}