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Accuracy of target localization of linac radiosurgery system

Wang Yun

Open publisher page 0 citations

Abstract

Objective: To study the accuracy of SRS200 linac radiosurgery system in our hospital. Methods: The CT localization accuracy of linac radiosurgery system was measured by markers in skull phantom, and the accuracy of isocenter subsystem and common error by film method. Results: The accuracy of CT localization of BRW headring was 0.65 ?mm and maximum error was 1.09?mm. The accuracy of SRS200 isocenter subsystem was 0.19?mm. The common accuracy of linac radiosurgery system was 0.68?mm mathematically and 1.43?mm actually. Conclusion: The accuracy of this linac radiosurgery system has come up to the standard of quality control of stereotactic radiosurgery.

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What this paper is about

Objective: To study the accuracy of SRS200 linac radiosurgery system in our hospital. Methods: The CT localization accuracy of linac radiosurgery system was measured by markers in skull phantom, and the accuracy of isocenter subsystem and common error by film method. Results: The accuracy of CT localization of BRW headring was 0.65 ?mm and maximum error was 1.09?mm. The accuracy of SRS200 isocenter subsystem was 0.19?mm. The common accuracy of linac radiosurgery system was 0.68?mm mathematically and 1.43?mm actually. Conclusion: The accuracy of this linac radiosurgery system has come up to the standard of quality control of stereotactic radiosurgery.

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Available abstract

Objective: To study the accuracy of SRS200 linac radiosurgery system in our hospital. Methods: The CT localization accuracy of linac radiosurgery system was measured by markers in skull phantom, and the accuracy of isocenter subsystem and common error by film method. Results: The accuracy of CT localization of BRW headring was 0.65 ?mm and maximum error was 1.09?mm. The accuracy of SRS200 isocenter subsystem was 0.19?mm. The common accuracy of linac radiosurgery system was 0.68?mm mathematically and 1.43?mm actually. Conclusion: The accuracy of this linac radiosurgery system has come up to the standard of quality control of stereotactic radiosurgery.

Key concepts: Isocenter, Radiosurgery, Linear particle accelerator, Imaging phantom, Nuclear medicine, Medicine, Beam (structure), Radiology

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