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Abstract #4836

MRI guided radiation therapy near metal implants in a 1.5T MR-Linac system

Fahed Alsanea1, Teodor Stanescu2, Yao Ding1, Sastry Vedam1, Jinzhong Yang1, Seungtaek Choi1, Anuja Jhingran1, and Jihong Wang1
1UT MD Anderson Cancer Center, Houston, TX, United States, 2Princess Margaret Cancer Centre, Toronto, ON, Canada

MR-Linac systems are useful to visualize small soft-tissue targets for radiotherapy (RT) treatments. Geometric distortion caused by metal implants can interfere with the accuracy of the RT plan design and delivery. In this study, we simulated the spatial distortions caused by a hip prosthesis and determined its impact on surrounding tissues.

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