Feasibility of single-isocenter, multi-arc non-coplanar volumetric modulated arc therapy for multiple brain tumors using a linear accelerator with a 160-leaf multileaf collimator: a phantom study
The feasibility of single isocenter, multi-arc non-coplanar volumetric modulated arc therapy (VMAT) for multiple brain tumors was studied using an Elekta Synergy linear accelerator with an Agility multileaf collimator and a Monaco treatment planning system. Two VMAT radiosurgery plans consisting of...
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| Veröffentlicht in: | Journal of radiation research 2014-09, Vol.55 (5), p.1015-1020 |
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| creator | Iwai, Yoshio Ozawa, Shuichi Ageishi, Tatsuya Pellegrini, Roberto Yoda, Kiyoshi |
| description | The feasibility of single isocenter, multi-arc non-coplanar volumetric modulated arc therapy (VMAT) for multiple brain tumors was studied using an Elekta Synergy linear accelerator with an Agility multileaf collimator and a Monaco treatment planning system. Two VMAT radiosurgery plans consisting of a full arc and three half arcs were created with a prescribed dose of 20 Gy in a single fraction. After dose delivery to a phantom, ionization chambers and radiochromic films were used for dose measurement. The first VMAT radiosurgery plan had nine targets inside the phantom, and the doses were measured by the chambers at two different points and by the films on three sagittal and three coronal planes. The differences between the calculated dose and the dose measured by a Farmer ionization chamber and a pinpoint ionization chamber were |
| doi_str_mv | 10.1093/jrr/rru042 |
| format | Article |
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Two VMAT radiosurgery plans consisting of a full arc and three half arcs were created with a prescribed dose of 20 Gy in a single fraction. After dose delivery to a phantom, ionization chambers and radiochromic films were used for dose measurement. The first VMAT radiosurgery plan had nine targets inside the phantom, and the doses were measured by the chambers at two different points and by the films on three sagittal and three coronal planes. The differences between the calculated dose and the dose measured by a Farmer ionization chamber and a pinpoint ionization chamber were <1.00% and <2.30%, respectively, and the average pass rates of gamma indices among the six planes under each of 3%/3 mm and 2%/2 mm criteria were 98.6% and 92.6%, respectively. The second VMAT radiosurgery plan was based on a clinical 14 brain metastases. Differences between calculated and film-measured doses were evaluated on two sagittal planes. The average pass rates of the gamma indices on the planes under each of 3%/3 mm and 2%/2 mm criteria were 97.8% and 88.8%, respectively. It was confirmed that single-isocenter, non-coplanar multi-arc VMAT radiosurgery for multiple brain metastases was feasible using Elekta Synergy with Agility and Monaco treatment planning systems. It was further shown that film dosimetry was accurately performed for a dose of up to nearly 25 Gy.</description><identifier>ISSN: 0449-3060</identifier><identifier>EISSN: 1349-9157</identifier><identifier>DOI: 10.1093/jrr/rru042</identifier><identifier>PMID: 24944266</identifier><language>eng</language><publisher>England: Oxford University Press</publisher><subject>Brain ; Brain Neoplasms - diagnostic imaging ; Brain Neoplasms - secondary ; Brain Neoplasms - surgery ; Brain tumors ; Cancer metastasis ; Care and treatment ; Equipment Design ; Equipment Failure Analysis ; Feasibility Studies ; Humans ; Ionization ; Ionization chambers ; Linear accelerators ; Monaco ; Optical instruments ; Particle Accelerators - instrumentation ; Phantoms, Imaging ; Planes ; Radiology ; Radiosurgery ; Radiosurgery - instrumentation ; Radiosurgery - methods ; Radiotherapy Dosage ; Radiotherapy Planning, Computer-Assisted - methods ; Radiotherapy, Intensity-Modulated - instrumentation ; Radiotherapy, Intensity-Modulated - methods ; Surgery ; Technology ; Therapy ; Tomography, X-Ray Computed - instrumentation ; Tomography, X-Ray Computed - methods ; Treatment Outcome</subject><ispartof>Journal of radiation research, 2014-09, Vol.55 (5), p.1015-1020</ispartof><rights>The Author 2014. Published by Oxford University Press on behalf of The Japan Radiation Research Society and Japanese Society for Radiation Oncology. 2014</rights><rights>The Author 2014. Published by Oxford University Press on behalf of The Japan Radiation Research Society and Japanese Society for Radiation Oncology.</rights><rights>COPYRIGHT 2014 Oxford University Press</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c565t-62c6a10f74732f66cd800a6fefda3732920566e4abd330cffef89d3d47c196493</citedby><cites>FETCH-LOGICAL-c565t-62c6a10f74732f66cd800a6fefda3732920566e4abd330cffef89d3d47c196493</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC4202300/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC4202300/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,723,776,780,860,881,1598,27901,27902,53766,53768</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/24944266$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Iwai, Yoshio</creatorcontrib><creatorcontrib>Ozawa, Shuichi</creatorcontrib><creatorcontrib>Ageishi, Tatsuya</creatorcontrib><creatorcontrib>Pellegrini, Roberto</creatorcontrib><creatorcontrib>Yoda, Kiyoshi</creatorcontrib><title>Feasibility of single-isocenter, multi-arc non-coplanar volumetric modulated arc therapy for multiple brain tumors using a linear accelerator with a 160-leaf multileaf collimator: a phantom study</title><title>Journal of radiation research</title><addtitle>J Radiat Res</addtitle><description>The feasibility of single isocenter, multi-arc non-coplanar volumetric modulated arc therapy (VMAT) for multiple brain tumors was studied using an Elekta Synergy linear accelerator with an Agility multileaf collimator and a Monaco treatment planning system. Two VMAT radiosurgery plans consisting of a full arc and three half arcs were created with a prescribed dose of 20 Gy in a single fraction. After dose delivery to a phantom, ionization chambers and radiochromic films were used for dose measurement. The first VMAT radiosurgery plan had nine targets inside the phantom, and the doses were measured by the chambers at two different points and by the films on three sagittal and three coronal planes. The differences between the calculated dose and the dose measured by a Farmer ionization chamber and a pinpoint ionization chamber were <1.00% and <2.30%, respectively, and the average pass rates of gamma indices among the six planes under each of 3%/3 mm and 2%/2 mm criteria were 98.6% and 92.6%, respectively. The second VMAT radiosurgery plan was based on a clinical 14 brain metastases. Differences between calculated and film-measured doses were evaluated on two sagittal planes. The average pass rates of the gamma indices on the planes under each of 3%/3 mm and 2%/2 mm criteria were 97.8% and 88.8%, respectively. It was confirmed that single-isocenter, non-coplanar multi-arc VMAT radiosurgery for multiple brain metastases was feasible using Elekta Synergy with Agility and Monaco treatment planning systems. It was further shown that film dosimetry was accurately performed for a dose of up to nearly 25 Gy.</description><subject>Brain</subject><subject>Brain Neoplasms - diagnostic imaging</subject><subject>Brain Neoplasms - secondary</subject><subject>Brain Neoplasms - surgery</subject><subject>Brain tumors</subject><subject>Cancer metastasis</subject><subject>Care and treatment</subject><subject>Equipment Design</subject><subject>Equipment Failure Analysis</subject><subject>Feasibility Studies</subject><subject>Humans</subject><subject>Ionization</subject><subject>Ionization chambers</subject><subject>Linear accelerators</subject><subject>Monaco</subject><subject>Optical instruments</subject><subject>Particle Accelerators - instrumentation</subject><subject>Phantoms, Imaging</subject><subject>Planes</subject><subject>Radiology</subject><subject>Radiosurgery</subject><subject>Radiosurgery - instrumentation</subject><subject>Radiosurgery - methods</subject><subject>Radiotherapy Dosage</subject><subject>Radiotherapy Planning, Computer-Assisted - methods</subject><subject>Radiotherapy, Intensity-Modulated - instrumentation</subject><subject>Radiotherapy, Intensity-Modulated - methods</subject><subject>Surgery</subject><subject>Technology</subject><subject>Therapy</subject><subject>Tomography, X-Ray Computed - instrumentation</subject><subject>Tomography, X-Ray Computed - methods</subject><subject>Treatment Outcome</subject><issn>0449-3060</issn><issn>1349-9157</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><sourceid>TOX</sourceid><sourceid>EIF</sourceid><recordid>eNqNkttqFTEUhgdR7LZ64wNIQAQRp81pMhMvhFKsCgVv9DpkZ5K9UzLJmENlP58vZsapxYKo5CKLrO__s7KymuYpgicIcnJ6FeNpjAVSfK_ZIEJ5y1HX3282kNaYQAaPmkcpXUGIe9jBh80RppxSzNim-X6hZbJb62w-gGBAsn7ndGtTUNpnHV-DqbhsWxkV8MG3KsxOehnBdXBl0jlaBaYwFiezHsFC5b2Ocj4AE-KqnZ0G2yitB7lMISZQlkuABM56XZ2kUtpVTa6CbzbvawYx2DotzWrwM1LBOTst0JsKzHvpc5hAymU8PG4eGOmSfnKzHzdfLt59Pv_QXn56__H87LJVHetyy7BiEkHT055gw5gaBwglM9qMktQjjmHHmKZyOxIClamJgY9kpL1CnFFOjpu3q-9ctpMelwZF6cQca13xIIK04m7G273YhWtBMcQEwmrw8sYghq9Fpywmm-rja0d1KEmgfmBogD3t_gOlbOCk1v1vtGOI9xQTXNHnK7qTTgvrTah1qgUXZx1hqKOMskqd_IGqa9STVcFrU7_kruDVKlAxpBS1ue0JgmIZUVFHVKwjWuFnv3fxFv01kxV4sQKhzH8z-gGJwfND</recordid><startdate>20140901</startdate><enddate>20140901</enddate><creator>Iwai, Yoshio</creator><creator>Ozawa, Shuichi</creator><creator>Ageishi, Tatsuya</creator><creator>Pellegrini, Roberto</creator><creator>Yoda, Kiyoshi</creator><general>Oxford University Press</general><scope>TOX</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>7TK</scope><scope>7U5</scope><scope>8FD</scope><scope>L7M</scope><scope>5PM</scope></search><sort><creationdate>20140901</creationdate><title>Feasibility of single-isocenter, multi-arc non-coplanar volumetric modulated arc therapy for multiple brain tumors using a linear accelerator with a 160-leaf multileaf collimator: a phantom study</title><author>Iwai, Yoshio ; Ozawa, Shuichi ; Ageishi, Tatsuya ; Pellegrini, Roberto ; Yoda, Kiyoshi</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c565t-62c6a10f74732f66cd800a6fefda3732920566e4abd330cffef89d3d47c196493</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Brain</topic><topic>Brain Neoplasms - diagnostic imaging</topic><topic>Brain Neoplasms - secondary</topic><topic>Brain Neoplasms - surgery</topic><topic>Brain tumors</topic><topic>Cancer metastasis</topic><topic>Care and treatment</topic><topic>Equipment Design</topic><topic>Equipment Failure Analysis</topic><topic>Feasibility Studies</topic><topic>Humans</topic><topic>Ionization</topic><topic>Ionization chambers</topic><topic>Linear accelerators</topic><topic>Monaco</topic><topic>Optical instruments</topic><topic>Particle Accelerators - instrumentation</topic><topic>Phantoms, Imaging</topic><topic>Planes</topic><topic>Radiology</topic><topic>Radiosurgery</topic><topic>Radiosurgery - instrumentation</topic><topic>Radiosurgery - methods</topic><topic>Radiotherapy Dosage</topic><topic>Radiotherapy Planning, Computer-Assisted - methods</topic><topic>Radiotherapy, Intensity-Modulated - instrumentation</topic><topic>Radiotherapy, Intensity-Modulated - methods</topic><topic>Surgery</topic><topic>Technology</topic><topic>Therapy</topic><topic>Tomography, X-Ray Computed - instrumentation</topic><topic>Tomography, X-Ray Computed - methods</topic><topic>Treatment Outcome</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Iwai, Yoshio</creatorcontrib><creatorcontrib>Ozawa, Shuichi</creatorcontrib><creatorcontrib>Ageishi, Tatsuya</creatorcontrib><creatorcontrib>Pellegrini, Roberto</creatorcontrib><creatorcontrib>Yoda, Kiyoshi</creatorcontrib><collection>Oxford Journals Open Access Collection</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>Neurosciences Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>Journal of radiation research</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Iwai, Yoshio</au><au>Ozawa, Shuichi</au><au>Ageishi, Tatsuya</au><au>Pellegrini, Roberto</au><au>Yoda, Kiyoshi</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Feasibility of single-isocenter, multi-arc non-coplanar volumetric modulated arc therapy for multiple brain tumors using a linear accelerator with a 160-leaf multileaf collimator: a phantom study</atitle><jtitle>Journal of radiation research</jtitle><addtitle>J Radiat Res</addtitle><date>2014-09-01</date><risdate>2014</risdate><volume>55</volume><issue>5</issue><spage>1015</spage><epage>1020</epage><pages>1015-1020</pages><issn>0449-3060</issn><eissn>1349-9157</eissn><abstract>The feasibility of single isocenter, multi-arc non-coplanar volumetric modulated arc therapy (VMAT) for multiple brain tumors was studied using an Elekta Synergy linear accelerator with an Agility multileaf collimator and a Monaco treatment planning system. Two VMAT radiosurgery plans consisting of a full arc and three half arcs were created with a prescribed dose of 20 Gy in a single fraction. After dose delivery to a phantom, ionization chambers and radiochromic films were used for dose measurement. The first VMAT radiosurgery plan had nine targets inside the phantom, and the doses were measured by the chambers at two different points and by the films on three sagittal and three coronal planes. The differences between the calculated dose and the dose measured by a Farmer ionization chamber and a pinpoint ionization chamber were <1.00% and <2.30%, respectively, and the average pass rates of gamma indices among the six planes under each of 3%/3 mm and 2%/2 mm criteria were 98.6% and 92.6%, respectively. The second VMAT radiosurgery plan was based on a clinical 14 brain metastases. Differences between calculated and film-measured doses were evaluated on two sagittal planes. The average pass rates of the gamma indices on the planes under each of 3%/3 mm and 2%/2 mm criteria were 97.8% and 88.8%, respectively. It was confirmed that single-isocenter, non-coplanar multi-arc VMAT radiosurgery for multiple brain metastases was feasible using Elekta Synergy with Agility and Monaco treatment planning systems. It was further shown that film dosimetry was accurately performed for a dose of up to nearly 25 Gy.</abstract><cop>England</cop><pub>Oxford University Press</pub><pmid>24944266</pmid><doi>10.1093/jrr/rru042</doi><tpages>6</tpages><oa>free_for_read</oa></addata></record> |
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| source | Oxford Journals Open Access Collection; MEDLINE; DOAJ Directory of Open Access Journals; EZB-FREE-00999 freely available EZB journals; PubMed Central |
| subjects | Brain Brain Neoplasms - diagnostic imaging Brain Neoplasms - secondary Brain Neoplasms - surgery Brain tumors Cancer metastasis Care and treatment Equipment Design Equipment Failure Analysis Feasibility Studies Humans Ionization Ionization chambers Linear accelerators Monaco Optical instruments Particle Accelerators - instrumentation Phantoms, Imaging Planes Radiology Radiosurgery Radiosurgery - instrumentation Radiosurgery - methods Radiotherapy Dosage Radiotherapy Planning, Computer-Assisted - methods Radiotherapy, Intensity-Modulated - instrumentation Radiotherapy, Intensity-Modulated - methods Surgery Technology Therapy Tomography, X-Ray Computed - instrumentation Tomography, X-Ray Computed - methods Treatment Outcome |
| title | Feasibility of single-isocenter, multi-arc non-coplanar volumetric modulated arc therapy for multiple brain tumors using a linear accelerator with a 160-leaf multileaf collimator: a phantom study |
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