Final answer:
The best way to detect enlarged fluid-filled brain regions in some patients who have schizophrenia is to use an MRI scan. MRI scans are non-invasive, do not expose the patient to radiation, and provide detailed images of the brain.
Step-by-step explanation:
The best way to detect enlarged fluid-filled brain regions in some patients who have schizophrenia is to use a MRI scan. MRI stands for magnetic resonance imaging, which uses electromagnetic waves to create detailed images of the brain. MRI scans are non-invasive and do not expose the patient to radiation, making them a safe and effective tool for diagnosing and studying brain conditions, including schizophrenia.