Treatment Verification Using Digital Imaging

  • Shlomo Shalev
Part of the Medical Radiology book series (MEDRAD)


Treatment verification plays a vital role in the management of patients receiving radiation treatment. As part of the overall quality assurance program, it is designed to detect a variety of mistakes, errors, and inaccuracies that can occur during a protracted course of fractionated therapy. Mistakes are due to human misjudgments or performance failures, and may have serious implications if not detected and corrected promptly. Treatment errors arise when calculations or procedures are less accurate than expected and can occur in all the stages of the planning and treatment process. They can be divided into two main categories: those associated with the prescription, computation, and specification of target doses and dose distributions, and those that occur during the delivery phase and involve the treatment machine or the patient. Portal verification, in which a transmission image of the patient is acquired just prior to or during teletherapy, is used to verify that such errors are within acceptable limits.


Radiat Oncol Biol Phys Modulation Transfer Function Compute Radiography Setup Error Portal Image 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag Berlin Heidelberg 1995

Authors and Affiliations

  • Shlomo Shalev
    • 1
  1. 1.Department of Medical PhysicsManitoba Cancer Treatment and Research FoundationWinnipegCanada

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