2017_IGRT course book
Intracranial stereotactic radiotherapy
Stereotactic radiosurgery (SRS) Single fraction treatment AVM, vestibular schwannoma, brain metastases, … Usually invasive frame-based techniques
Multiple fraction stereotactic radiotherapy Theoretical benefit of fractionation, if organs-at-risk with low α/β value are close to the target For large target volumes Usually practiced non-invasively (masks, bite-blocks,....)
patient comfort risk of infection
Accuracy differs between invasive and non-invasive stereotactic systems!
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