In-depth

Causes

Concussion

Concussions can be serious injuries that need sufficient time to heal.

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.

Oct. 11, 2011