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Learning objectives

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To give an overview of the magnitude of intra-fractional position errors for patients

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To demonstrate the dosimetric and clinical relevance of these errors

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Sites of interest

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Intra-cranial

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Head and neck

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Spine (supine vs. prone)

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Prostate

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Lung

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Liver

To give an overview of 4D pre-planning imaging in relation to the

chosen treatment strategy

To give an overview of current technologies and correction strategies

managing intra-fractional respiration induced motion

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Breath-hold

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Mid-ventilation

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Gating

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Tracking

To show some of the pitfalls related to these strategies

SBRT 2017 - D. Verellen