Task 1. The goal of this task is to segment brain structures to use for automated definition of the clinical target volume (CTV) for radiotherapy treatment.

Falx cerebri	Tentorium cerebelli	Sagittal & transverse brain sinuses	Cerebellum	Ventricles

Task 2. The goal of the task is to segment structures to use in radiotherapy treatment plan optimization.

Brainstem	Eyes, optic nerves, optic chiasm	Lacrimal glands, cochleas