Traumatic brain injuries (TBI) can occur when one sustains a violent blow to the head or body that will cause damage to the brain, or if an object pierces the skull to enter the brain tissue. Millions of people in the United States sustain brain injuries every year, and approximately half of these injuries, according to the National Institutes of Health, occur from motor vehicle accidents. While TBI symptoms can range from mild to severe, it is important that someone who has suffered from a head injury seeks medical aid in order to diagnose the severity of the injury.
Methods of diagnosis and treatment can vary based on the severity of the injury. Patients suffering from mild to moderate head injuries might receive x-rays of the skull and neck to check for fractures or any spinal instability. Moderate to severe cases, however, require a computed tomography (CT) scan and possibly magnetic resonance imaging (MRI). CT scans are the most common method of diagnosing, as they easily reveal conditions caused by blood and swelling around the brain. MRI tends to follow CT scans if necessary and possible in order to further determine the extent of the injury and the kind of treatment required. In recent years, CT scans and MRI have undergone technological advancements that have increased physicians' capabilities in diagnosing and treating head injuries.