Program Information

Image Registration II: TG132-Quality Assurance for Image Registration

K Brock

S Mutic

K Brock¹*, S Mutic²*, (1) University of Michigan, Ann Arbor, MI, (2) Washington University School of Medicine, Saint Louis, MO

Presentations

TU-B-19A-1 Tuesday 8:30AM - 9:30AM Room: 19A

AAPM Task Group 132 was charged with a review of the current approaches and solutions for image registration in radiotherapy and to provide recommendations for quality assurance and quality control of these clinical processes. As the results of image registration are always used as the input of another process for planning or delivery, it is important for the user to understand and document the uncertainty associate with the algorithm in general and the result of a specific registration. The recommendations of this task group, which at the time of abstract submission are currently being reviewed by the AAPM, include the following components. The user should understand the basic image registration techniques and methods of visualizing image fusion. The disclosure of basic components of the image registration by commercial vendors is critical in this respect. The physicists should perform end-to-end tests of imaging, registration, and planning/treatment systems if image registration is performed on a stand-alone system. A comprehensive commissioning process should be performed and documented by the physicist prior to clinical use of the system. As documentation is important to the safe implementation of this process, a request and report system should be integrated into the clinical workflow. Finally, a patient specific QA practice should be established for efficient evaluation of image registration results. The implementation of these recommendations will be described and illustrated during this educational session.

Learning Objectives:
1. Highlight the importance of understanding the image registration techniques used in their clinic.
2. Describe the end-to-end tests needed for stand-alone registration systems.
3. Illustrate a comprehensive commissioning program using both phantom data and clinical images.
4. Describe a request and report system to ensure communication and documentation.
5. Demonstrate an clinically-efficient patient QA practice for efficient evaluation of image registration.


Funding Support, Disclosures, and Conflict of Interest: K Brock has financial interest in deformable registration technology through a licensing agreement with RaySearch Laboratories.

Handouts

• 90-25535-333462-102824.pdf (K Brock)

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