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Trauma to the corpus callosum: MR features.
L R Gentry1, B Thompson, J C Godersky
1Department of Radiology, University of Wisconsin Hospital and Clinics, Madison 53792.
AJNR. American Journal of Neuroradiology
|November 1, 1988
Summary
Traumatic corpus callosum injuries are common in head trauma, affecting nearly half of patients. Magnetic resonance imaging (MRI) is superior to CT scans for detecting these brain injuries.
Area of Science:
- Neurology
- Radiology
- Trauma Surgery
Background:
- Corpus callosum injuries are often associated with traumatic brain injuries.
- Previous studies have underestimated the frequency of corpus callosum injuries.
Purpose of the Study:
- To determine the frequency, distribution, and appearance of corpus callosum injuries in patients with acute and chronic head injuries.
- To compare the sensitivity of MRI and CT in detecting these injuries.
Main Methods:
- Prospective study of 78 patients with head injuries.
- Evaluation using MRI and CT scans.
- Analysis of lesion location and associated injuries.
Main Results:
- Corpus callosum lesions were detected in 47% of patients.
- MRI was significantly more sensitive than CT (100% vs. 27% detection).
- Injuries were most common in the splenium, but also occurred in the body and genu.
Conclusions:
- Corpus callosum injury is more frequent in nonfatal head injuries than previously thought.
- MRI is the preferred imaging modality for detecting corpus callosum injuries.
- These injuries are associated with more severe brain trauma, including brainstem and diffuse axonal injury.