The Brain Injury
Law Group
800-992-9447
TBI LAW
From Concussion to Coma
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Brain Injury Law Group
Attorney Gordon S. Johnson, Jr.
212 Whitetail Run Ln.
Sheboygan, WI
800-992-9447
Normal Imaging Studies
"Computed tomography, magnetic resonance imaging, electroencephalogram, or routine neurological evaluations may be normal."*
Subtle brain injury can only be identified by a triangulated evaluation of these three things:
- The patients acute history,
- The patients long term symptomatology; and
- A detailed neuropsychological assessment.
Thus, when considering the relevancy of scanning in the diagnosis of brain injury, it is important to understand what each of the below diagnostic tests can tell us about brain damage.
*Source: Definition of Mild Traumatic Brain Injury Developed by the Mild Traumatic Brain Injury Committee of the Head Injury Interdisciplinary Special Interest Group of the American Congress of Rehabilitation Medicine.
J Head Trauma Rehabil 1993:8(3):86-87
Normal CT and MRI scans do not rule out brain injury.
Both of these tests are macroscopic. Axonal and neuronal brain injury are microscopic.
50% of those who are in a coma have normal MRI and CT scans.
In such cases, "it is usually concluded that the patient has sustained diffuse brain damage, but even with improved imaging, its precise type may not be identifiable during life." Greenfield's Neuropathology, page 209.
This is with patients who are in a Coma!
It is not necessary to have a loss of consciousness to suffer permanent brain injury.
Source: Definition of Mild Traumatic Brain Injury Developed by the Mild Traumatic Brain Injury Committee of the Head Injury Interdisciplinary Special Interest Group of the American Congress of Rehabilitation Medicine. J Head Trauma Rehabil 1993:8(3):86-87
Contact the Brain Injury Law Group: 1-800-992-9447
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