Feasibility of real‐time motion tracking using cine MRI during MR‐guided radiation therapy for abdominal targets
Medical Physics2020Vol. 47(8), pp. 3554–3566
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Timothy Keiper, A. Tai, Xinfeng Chen, E.S. Paulson, F. Lathuiliere, Silvain Bériault, François Hébert, David T. Cooper, M. Lachaı̂ne, X. Allen Li
Abstract
Feasibility to track organ motion using intensity-based registration of MRIs was demonstrated for abdominal targets. Tracking accuracy of about 2 mm was achieved for the motion of the liver and pancreatic head for typical patient motion. Further development is ongoing to improve the tracking algorithm for large and complex motions.
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