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Adaptive Radiotherapy: Concepts and Approaches

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Adaptive Radiotherapy: Concepts and Approaches

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Questions and Answers

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

It is a time-consuming process

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

It is not effective for treating tumors with small motion

It is not suitable for treating tumors with large motion

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

To reduce treatment time

To increase treatment effectiveness

To improve patient comfort

To reduce dose to OARs (correct)

How does uterine motion vary?

It is constant and does not vary

It is large and depends on bladder filling (correct)

It is small and depends on rectal filling

It is unpredictable and random

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

It provides real-time tumor tracking and adaptation Signup and view all the answers

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

To adjust the radiation beams in real-time Signup and view all the answers

What is the difference between rigid and deformable registration?

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

What is the advantage of motion-adaptive therapy?

It reduces dose to OARs Signup and view all the answers

What is the limitation of traditional radiation therapy planning?

It does not account for tumor motion Signup and view all the answers

What is the purpose of CBCT in radiation therapy?

To adapt to daily tumor position Signup and view all the answers

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

It enables treatment of tumors with large motion Signup and view all the answers