Using an EPID for patient-specific VMAT quality assurance.

  title={Using an EPID for patient-specific VMAT quality assurance.},
  author={Mohammad Bakhtiari and Lalith K. Kumaraswamy and Daniel W. Bailey and Siebolt de Boer and Harish Kumar Malhotra and M. Podgorsak},
  journal={Medical physics},
  volume={38 3},
PURPOSE A patient-specific quality assurance (QA) method was developed to verify gantry-specific individual multileaf collimator (MLC) apertures (control points) in volumetric modulated arc therapy (VMAT) plans using an electronic portal imaging device (EPID). METHODS VMAT treatment plans were generated in an Eclipse treatment planning system (TPS). DICOM images from a Varian EPID (aS1000) acquired in continuous acquisition mode were used for pretreatment QA. Each cine image file contains the… CONTINUE READING