In-depth

Tests and diagnosis

CT scan

A CT scan is an imaging test that uses X-rays to produce detailed images of the inside of your body.

EEG (electroencephalogram)

Here's what to expect if you're scheduled for an EEG (electroencephalogram) — a common diagnostic test for many brain disorders, especially epilepsy.

MRI

MRI uses a magnetic field and radio waves to create detailed images of the organs and tissues within your body.

Aug. 18, 2011