Performance evaluation of a CyberKnife® G4 image-guided robotic stereotactic radiosurgery system
Physics in Medicine and Biology, ISSN: 0031-9155, Vol: 53, Issue: 17, Page: 4697-4718
2008
- 122Citations
- 116Captures
- 79Mentions
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Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
Citation Benchmarking is provided by Scopus and SciVal and is different from the metrics context provided by PlumX Metrics.
Metrics Details
- Citations122
- Citation Indexes122
- 122
- CrossRef93
- Captures116
- Readers116
- 116
- Mentions79
- News Mentions79
- News79
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Article Description
The aim of the current work was to present the performance evaluation procedures implemented at our department for the commissioning of a G4 CyberKnife system. This system consists of a robotic manipulator, a target-locating system and a lightweight 6-MV linac. Individual quality assurance procedures were performed for each of the CyberKnife subsystems. The system was checked for the mechanical accuracy of its robotic manipulator. The performance of the target-locating system was evaluated in terms of mechanical accuracy of both cameras' alignment and quality assurance tests of the x-ray generators and the flat-panel detectors. The traditional linac 6-MV beam characteristics and beam output parameters were also measured. Results revealed a manipulator mechanical mean accuracy of ∼0.1 mm, with individual maximum position uncertainties less than 0.25 mm. The target-locating system mechanical accuracy was found within the acceptance limits. For the most clinically used parameters in the CyberKnife practice, e.g. 100-120 kV and 50-200 ms, kV and exposure time accuracy error were measured as less than 2%, while the precision error of the kV was determined as less than 1%. The acquired images of the ETR grid pattern revealed no geometrical distortion while the critical frequency f values for cameras A and B were calculated as 1.5 lp mm and 1.4 lp mm, respectively. Dose placement measurements were performed in a head and neck phantom. Results revealed sub-millimeter beam delivery precision whereas the total clinical accuracy of the system was measured equal to 0.44 ± 0.12 mm, 0.29 ± 0.10 mm and 0.53 ± 0.16 mm for the skull, fiducial and Xsight spine tracking methods, respectively. The results of this work certify the G4 CyberKnife SRS system capable of delivering high dose distributions with sub-millimeter accuracy and precision to intracranial and extracranial lesions. Moreover, total clinical accuracy of the investigated G4 system was found to be improved for the skull and fiducial tracking methods and was comparable for Xsight spine tracking method compared with the earlier generation of the instrument. © 2008 Institute of Physics and Engineering in Medicine.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=51849098609&origin=inward; http://dx.doi.org/10.1088/0031-9155/53/17/016; http://www.ncbi.nlm.nih.gov/pubmed/18695294; https://iopscience.iop.org/article/10.1088/0031-9155/53/17/016; https://dx.doi.org/10.1088/0031-9155/53/17/016; https://validate.perfdrive.com/9730847aceed30627ebd520e46ee70b2/?ssa=4a151b07-ea79-4758-b21f-220a59a7c7bd&ssb=36929254487&ssc=https%3A%2F%2Fiopscience.iop.org%2Farticle%2F10.1088%2F0031-9155%2F53%2F17%2F016&ssi=d5ff256b-cnvj-4cb8-8701-7ebac2dc764a&ssk=botmanager_support@radware.com&ssm=91462645759502115220512147060486538&ssn=4adc03469dee1ba3e5134057c107263dccc1fe105911-65fe-48dc-81cc44&sso=e4614150-9319bfde79b5814edfc79959e2d47935687e6f1eacdffd39&ssp=23520784551726219683172634439736523&ssq=81069644061820282869863731400047105878108&ssr=NTIuMy4yMTcuMjU0&sst=com.plumanalytics&ssu=&ssv=&ssw=&ssx=eyJfX3V6bWYiOiI3ZjYwMDBmY2NjNzQxOC1mYzFiLTRjNmEtODMwYS1iMjY5YmYxNWM5NTIxNzI2MjYzNzMxNDQwNzY4ODc1MjUtMDQzMGRiNzRlMWUxNzYyYjIyMDUxIiwicmQiOiJpb3Aub3JnIiwidXpteCI6IjdmOTAwMDM2Y2Q3MWI0LWMxNWMtNDk1YS1hYzYxLTUzOGFiMTFjNGY3YTItMTcyNjI2MzczMTQ0MDc2ODg3NTI1LTkwNDg5ZTJhY2Y0ZDk1YmMyMjA1MSJ9
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