Isocenter verification for linac-based stereotactic radiation therapy: review of principles and techniques

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Abstract

There have been several manual, semi-automatic and fully-automatic methods proposed for verification of the position of mechanical isocenter as part of comprehensive quality assurance programs required for linear accelerator-based stereotactic radiosurgery/radiotherapy (SRS/SRT) treatments. In this paper, a systematic review has been carried out to discuss the present methods for isocenter verification and compare their characteristics, to help physicists in making a decision on selection of their quality assurance routine.

PACS numbers: 87.53.Ly, 87.56.Fc, 87.56.-v

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