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Yelin Suh and Paul Keall Stanford University - GSI

Yelin Suh and Paul Keall Stanford University - GSI

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Using motion as a degree of freedom for dynamic MLC tracking can<br />

improve radiotherapy treatment for 4D anatomy.<br />

Specific <strong>and</strong> general solutions to the 4D treatment planning with<br />

dynamic MLC tracking problem have been investigated.<br />

4D treatment plans for dynamic MLC tracking result in leaf sequences<br />

as a function of monitor units <strong>and</strong> respiratory phases.<br />

4D optimization with dynamic MLC tracking can generate a better 4D<br />

treatment plan than the sum of individually optimized phase plans.<br />

4D treatment plans can be delivered with current delivery technology,<br />

while accounting for variable target motion during delivery.

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