How is a ventricular region defined?

A ventricular region is defined as a specific area within the ventricular system of the brain, which consists of interconnected cavities filled with cerebrospinal fluid (CSF). These regions include the lateral ventricles, third ventricle, and fourth ventricle, each serving as a reservoir and conduit for CSF. The ventricular system plays a crucial role in protecting the brain, maintaining intracranial pressure, and facilitating nutrient transport. In neuroimaging, identifying these regions helps assess brain health and diagnose various neurological conditions.