Involved Field Radiation (Ependymoma)

Summary

This course provides an in-depth understanding of involved field radiation for intracranial ependymomas. It covers essential background information, general radiation therapy principles, and detailed contouring techniques. Participants will learn to minimize toxicity while optimizing tumor control and patient outcomes.

Key Learning Objectives

• Define ependymoma epidemiology, imaging features, and primary treatment approaches.
• Apply principles of involved field radiation therapy for pediatric intracranial ependymomas.
• Accurately contour involved field target volumes (GTV and CTV) using pre- and post-operative imaging.
• Identify and respect critical organs at risk (OARs), including the brainstem and spinal cord.
• Implement appropriate dosimetric constraints to balance tumor control and toxicity for both photon and proton therapy.

Why You Should Attend

• Master precise contouring techniques for challenging posterior fossa tumors.
• Optimize radiation dose prescriptions to maximize efficacy and minimize long-term toxicity.
• Gain expert insights into the nuances of photon versus proton therapy in ependymoma treatment.
• Enhance decision-making for managing cases with residual disease or recurrence.
• Improve patient care by understanding current standard of care and clinical trial considerations.

Topics Discussed

• Ependymoma epidemiology, imaging, and diagnostic workup
• Treatment approaches: surgery, radiation therapy, and chemotherapy
• Molecular subgroups and their prognostic impact
• General principles of radiation therapy for ependymomas
• Detailed involved field CTV definition using pre- and post-operative imaging
• Strategies for managing gross residual disease
• Contouring critical organs at risk (OARs) in the posterior fossa
• Dosimetric constraints for brainstem, spinal cord, and other sensitive structures
• Comparison of dose tolerances between photon and proton therapy

Keywords

#Ependymoma, #RadiationTherapy, #Contouring, #PosteriorFossa, #GTV, #CTV, #BrainstemToxicity, #SpinalCordTolerance, #ProtonTherapy, #DosimetricConstraints