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Systems, devices, and methods for quality assurance of radiation therapy

  • US 10,112,059 B2
  • Filed: 05/26/2016
  • Issued: 10/30/2018
  • Est. Priority Date: 10/12/2012
  • Status: Active Grant
First Claim
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1. A method for verifying radiation dose delivered to a subject, comprising:

  • generating 2D images of the subject by delivering radiation beams to the subject at predetermined radiation fields;

    converting the 2D images into radiation dose distribution images;

    comparing the radiation dose distribution images with corresponding predicted radiation dose distribution images using a three-dimensional (3D) gamma portal dose distribution algorithm, the comparing comprising calculating radiation dose differences, spatial differences, and angular differences between points in the generated radiation dose distribution images and corresponding points in the predicted radiation dose distribution images;

    evaluating the calculated differences; and

    determining acceptability of the radiation dose delivered to the subject based on a result of the evaluation.

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