Film-based delivery quality assurance for robotic radiosurgery: Commissioning and validation
Abstract Purpose Robotic radiosurgery demands comprehensive delivery quality assurance (DQA), but guidelines for commissioning of the DQA method is missing. We investigated the stability and sensitivity of our film-based DQA method with various test scenarios and routine patient plans. We also inves...
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| Veröffentlicht in: | Physica medica 2015-07, Vol.31 (5), p.476-483 |
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| creator | Blanck, Oliver Masi, Laura Damme, Marie-Christin Hildebrandt, Guido Dunst, Jürgen Siebert, Frank-Andre Poppinga, Daniela Poppe, Björn |
| description | Abstract Purpose Robotic radiosurgery demands comprehensive delivery quality assurance (DQA), but guidelines for commissioning of the DQA method is missing. We investigated the stability and sensitivity of our film-based DQA method with various test scenarios and routine patient plans. We also investigated the applicability of tight distance-to-agreement (DTA) Gamma-Index criteria. Methods and material We used radiochromic films with multichannel film dosimetry and re-calibration and our analysis was performed in four steps: 1) Film-to-plan registration, 2) Standard Gamma-Index criteria evaluation (local-pixel-dose-difference ≤2%, distance-to-agreement ≤2 mm, pass-rate ≥90%), 3) Dose distribution shift until maximum pass-rate (Maxγ ) was found (shift acceptance |
| doi_str_mv | 10.1016/j.ejmp.2015.05.001 |
| format | Article |
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We investigated the stability and sensitivity of our film-based DQA method with various test scenarios and routine patient plans. We also investigated the applicability of tight distance-to-agreement (DTA) Gamma-Index criteria. Methods and material We used radiochromic films with multichannel film dosimetry and re-calibration and our analysis was performed in four steps: 1) Film-to-plan registration, 2) Standard Gamma-Index criteria evaluation (local-pixel-dose-difference ≤2%, distance-to-agreement ≤2 mm, pass-rate ≥90%), 3) Dose distribution shift until maximum pass-rate (Maxγ ) was found (shift acceptance <1 mm), and 4) Final evaluation with tight DTA criteria (≤1 mm). Test scenarios consisted of purposefully introduced phantom misalignments, dose miscalibrations, and undelivered MU. Initial method evaluation was done on 30 clinical plans. Results Our method showed similar sensitivity compared to the standard End-2-End-Test and incorporated an estimate of global system offsets in the analysis. The simulated errors (phantom shifts, global robot misalignment, undelivered MU) were detected by our method while standard Gamma-Index criteria often did not reveal these deviations. Dose miscalibration was not detected by film alone, hence simultaneous ion-chamber measurement for film calibration is strongly recommended. 83% of the clinical patient plans were within our tight DTA tolerances. Conclusion Our presented methods provide additional measurements and quality references for film-based DQA enabling more sensitive error detection. We provided various test scenarios for commissioning of robotic radiosurgery DQA and demonstrated the necessity to use tight DTA criteria.</description><identifier>ISSN: 1120-1797</identifier><identifier>EISSN: 1724-191X</identifier><identifier>DOI: 10.1016/j.ejmp.2015.05.001</identifier><identifier>PMID: 26003217</identifier><language>eng</language><publisher>Italy: Elsevier Ltd</publisher><subject>Calibration ; CyberKnife ; Delivery quality assurance ; Film Dosimetry ; Gafchromic EBT3 ; Quality Control ; Radiochromic film ; Radiology ; Radiosurgery ; Radiotherapy Dosage ; Radiotherapy, Intensity-Modulated ; Robotics ; Stereotactic body radiation therapy ; Triple channel dosimetry</subject><ispartof>Physica medica, 2015-07, Vol.31 (5), p.476-483</ispartof><rights>Associazione Italiana di Fisica Medica</rights><rights>2015 Associazione Italiana di Fisica Medica</rights><rights>Copyright © 2015 Associazione Italiana di Fisica Medica. Published by Elsevier Ltd. All rights reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c510t-d38378e98ddcdc9dc4c0d86635d51ec4f113086da6e96fcbd746d1150275740d3</citedby><cites>FETCH-LOGICAL-c510t-d38378e98ddcdc9dc4c0d86635d51ec4f113086da6e96fcbd746d1150275740d3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.ejmp.2015.05.001$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/26003217$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Blanck, Oliver</creatorcontrib><creatorcontrib>Masi, Laura</creatorcontrib><creatorcontrib>Damme, Marie-Christin</creatorcontrib><creatorcontrib>Hildebrandt, Guido</creatorcontrib><creatorcontrib>Dunst, Jürgen</creatorcontrib><creatorcontrib>Siebert, Frank-Andre</creatorcontrib><creatorcontrib>Poppinga, Daniela</creatorcontrib><creatorcontrib>Poppe, Björn</creatorcontrib><title>Film-based delivery quality assurance for robotic radiosurgery: Commissioning and validation</title><title>Physica medica</title><addtitle>Phys Med</addtitle><description>Abstract Purpose Robotic radiosurgery demands comprehensive delivery quality assurance (DQA), but guidelines for commissioning of the DQA method is missing. We investigated the stability and sensitivity of our film-based DQA method with various test scenarios and routine patient plans. We also investigated the applicability of tight distance-to-agreement (DTA) Gamma-Index criteria. Methods and material We used radiochromic films with multichannel film dosimetry and re-calibration and our analysis was performed in four steps: 1) Film-to-plan registration, 2) Standard Gamma-Index criteria evaluation (local-pixel-dose-difference ≤2%, distance-to-agreement ≤2 mm, pass-rate ≥90%), 3) Dose distribution shift until maximum pass-rate (Maxγ ) was found (shift acceptance <1 mm), and 4) Final evaluation with tight DTA criteria (≤1 mm). Test scenarios consisted of purposefully introduced phantom misalignments, dose miscalibrations, and undelivered MU. Initial method evaluation was done on 30 clinical plans. Results Our method showed similar sensitivity compared to the standard End-2-End-Test and incorporated an estimate of global system offsets in the analysis. The simulated errors (phantom shifts, global robot misalignment, undelivered MU) were detected by our method while standard Gamma-Index criteria often did not reveal these deviations. Dose miscalibration was not detected by film alone, hence simultaneous ion-chamber measurement for film calibration is strongly recommended. 83% of the clinical patient plans were within our tight DTA tolerances. Conclusion Our presented methods provide additional measurements and quality references for film-based DQA enabling more sensitive error detection. We provided various test scenarios for commissioning of robotic radiosurgery DQA and demonstrated the necessity to use tight DTA criteria.</description><subject>Calibration</subject><subject>CyberKnife</subject><subject>Delivery quality assurance</subject><subject>Film Dosimetry</subject><subject>Gafchromic EBT3</subject><subject>Quality Control</subject><subject>Radiochromic film</subject><subject>Radiology</subject><subject>Radiosurgery</subject><subject>Radiotherapy Dosage</subject><subject>Radiotherapy, Intensity-Modulated</subject><subject>Robotics</subject><subject>Stereotactic body radiation therapy</subject><subject>Triple channel dosimetry</subject><issn>1120-1797</issn><issn>1724-191X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp9kUFr3DAQhUVpadK0f6CHomMv3mpkS7ZLKYSlaQuBHNJCDwWh1YyDXNvaSPbC_vvKbNpDDoEBDdJ7j9E3jL0FsQEB-kO_oX7cb6QAtRG5BDxj51DLqoAWfj3PPUhRQN3WZ-xVSr0QpZRKvWRnUq891Ofs95UfxmJnEyFHGvyB4pHfL3bw85HblJZoJ0e8C5HHsAuzdzxa9CE_3GXpR74N4-hT8mHy0x23E_JDNqOd881r9qKzQ6I3D-cF-3n15cf2W3F98_X79vK6cArEXGDZlHVDbYPo0LXoKiew0bpUqIBc1QGUotFoNbW6czusK40ASsha1ZXA8oK9P-XuY7hfKM0mj-RoGOxEYUkGdNPmhEZBlsqT1MWQUqTO7KMfbTwaEGalanqzUjUrVSNyidX07iF_2Y2E_y3_MGbBp5OA8i8PnqJJzlMGhz6Smw0G_3T-50d2N_jJOzv8oSOlPixxyvwMmCSNMLfrXte1ZgQCAJryLzZPnsA</recordid><startdate>20150701</startdate><enddate>20150701</enddate><creator>Blanck, Oliver</creator><creator>Masi, Laura</creator><creator>Damme, Marie-Christin</creator><creator>Hildebrandt, Guido</creator><creator>Dunst, Jürgen</creator><creator>Siebert, Frank-Andre</creator><creator>Poppinga, Daniela</creator><creator>Poppe, Björn</creator><general>Elsevier Ltd</general><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></search><sort><creationdate>20150701</creationdate><title>Film-based delivery quality assurance for robotic radiosurgery: Commissioning and validation</title><author>Blanck, Oliver ; Masi, Laura ; Damme, Marie-Christin ; Hildebrandt, Guido ; Dunst, Jürgen ; Siebert, Frank-Andre ; Poppinga, Daniela ; Poppe, Björn</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c510t-d38378e98ddcdc9dc4c0d86635d51ec4f113086da6e96fcbd746d1150275740d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Calibration</topic><topic>CyberKnife</topic><topic>Delivery quality assurance</topic><topic>Film Dosimetry</topic><topic>Gafchromic EBT3</topic><topic>Quality Control</topic><topic>Radiochromic film</topic><topic>Radiology</topic><topic>Radiosurgery</topic><topic>Radiotherapy Dosage</topic><topic>Radiotherapy, Intensity-Modulated</topic><topic>Robotics</topic><topic>Stereotactic body radiation therapy</topic><topic>Triple channel dosimetry</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Blanck, Oliver</creatorcontrib><creatorcontrib>Masi, Laura</creatorcontrib><creatorcontrib>Damme, Marie-Christin</creatorcontrib><creatorcontrib>Hildebrandt, Guido</creatorcontrib><creatorcontrib>Dunst, Jürgen</creatorcontrib><creatorcontrib>Siebert, Frank-Andre</creatorcontrib><creatorcontrib>Poppinga, Daniela</creatorcontrib><creatorcontrib>Poppe, Björn</creatorcontrib><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><jtitle>Physica medica</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Blanck, Oliver</au><au>Masi, Laura</au><au>Damme, Marie-Christin</au><au>Hildebrandt, Guido</au><au>Dunst, Jürgen</au><au>Siebert, Frank-Andre</au><au>Poppinga, Daniela</au><au>Poppe, Björn</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Film-based delivery quality assurance for robotic radiosurgery: Commissioning and validation</atitle><jtitle>Physica medica</jtitle><addtitle>Phys Med</addtitle><date>2015-07-01</date><risdate>2015</risdate><volume>31</volume><issue>5</issue><spage>476</spage><epage>483</epage><pages>476-483</pages><issn>1120-1797</issn><eissn>1724-191X</eissn><abstract>Abstract Purpose Robotic radiosurgery demands comprehensive delivery quality assurance (DQA), but guidelines for commissioning of the DQA method is missing. We investigated the stability and sensitivity of our film-based DQA method with various test scenarios and routine patient plans. We also investigated the applicability of tight distance-to-agreement (DTA) Gamma-Index criteria. Methods and material We used radiochromic films with multichannel film dosimetry and re-calibration and our analysis was performed in four steps: 1) Film-to-plan registration, 2) Standard Gamma-Index criteria evaluation (local-pixel-dose-difference ≤2%, distance-to-agreement ≤2 mm, pass-rate ≥90%), 3) Dose distribution shift until maximum pass-rate (Maxγ ) was found (shift acceptance <1 mm), and 4) Final evaluation with tight DTA criteria (≤1 mm). Test scenarios consisted of purposefully introduced phantom misalignments, dose miscalibrations, and undelivered MU. Initial method evaluation was done on 30 clinical plans. Results Our method showed similar sensitivity compared to the standard End-2-End-Test and incorporated an estimate of global system offsets in the analysis. The simulated errors (phantom shifts, global robot misalignment, undelivered MU) were detected by our method while standard Gamma-Index criteria often did not reveal these deviations. Dose miscalibration was not detected by film alone, hence simultaneous ion-chamber measurement for film calibration is strongly recommended. 83% of the clinical patient plans were within our tight DTA tolerances. Conclusion Our presented methods provide additional measurements and quality references for film-based DQA enabling more sensitive error detection. We provided various test scenarios for commissioning of robotic radiosurgery DQA and demonstrated the necessity to use tight DTA criteria.</abstract><cop>Italy</cop><pub>Elsevier Ltd</pub><pmid>26003217</pmid><doi>10.1016/j.ejmp.2015.05.001</doi><tpages>8</tpages></addata></record> |
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| subjects | Calibration CyberKnife Delivery quality assurance Film Dosimetry Gafchromic EBT3 Quality Control Radiochromic film Radiology Radiosurgery Radiotherapy Dosage Radiotherapy, Intensity-Modulated Robotics Stereotactic body radiation therapy Triple channel dosimetry |
| title | Film-based delivery quality assurance for robotic radiosurgery: Commissioning and validation |
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