Method and system for real-time DMLC-based target tracking with optimal motion compensating leaf adaptation
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United States of America Patent
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Mar 3, 2015
Grant Date -
Apr 26, 2012
app pub date -
Jul 9, 2010
filing date -
Jul 9, 2009
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Abstract
A method of multileaf collimator (MLC) leaf positioning in tracking-based adaptive radiotherapy is provided. The method includes determining a radiotherapy beam pattern by transforming a treatment beam plan into radiotherapy beam coordinates, determining a dose discrepancy between the radiotherapy beam pattern and a deliverable MLC aperture, where the dose discrepancy includes a sum of an overdose cost and an underdose cost to a treatment volume, and minimizing the dose discrepancy, where the dose discrepancy minimization provides a determined deliverable MLC aperture for the radiotherapy beam.
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