Adaptive Radiotherapy: Concepts and Approaches

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What is the primary limitation of using large population-based margins in radiation therapy?

It results in high dose to OARs even with IMRT/VMAT

What is the purpose of creating multiple patient-specific plans with smaller margins?

To reduce dose to OARs

How does uterine motion vary?

It is large and depends on bladder filling

What is the advantage of MR-guided radiotherapy over traditional methods?

<p>It provides real-time tumor tracking and adaptation</p> Signup and view all the answers

What is the purpose of online adaptation in MR-guided radiotherapy?

<p>To adjust the radiation beams in real-time</p> Signup and view all the answers

What is the difference between rigid and deformable registration?

<p>Rigid registration accounts for translation only, while deformable registration accounts for deformations</p> Signup and view all the answers

What is the advantage of motion-adaptive therapy?

<p>It reduces dose to OARs</p> Signup and view all the answers

What is the limitation of traditional radiation therapy planning?

<p>It does not account for tumor motion</p> Signup and view all the answers

What is the purpose of CBCT in radiation therapy?

<p>To adapt to daily tumor position</p> Signup and view all the answers

What is the advantage of using a library of plans in motion-adaptive therapy?

<p>It enables treatment of tumors with large motion</p> Signup and view all the answers

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