Significance of Magnetic Resonance Imaging (MRI) in Diffuse Axonal Injury
Advantages of magnetic resonance imaging (MRI) to computerized tomography(CT) on diagnosis of diffuse axonal injury(DAI) were discussed. Twenty-three patients diagnosed as DAI defined by the criteria of Gennarelli were studied with CT and MRI. Lesions were demonstrated as high intensity area on MRI of T2 weighted imaging in all patients. These lesions were located only in cerebral white matter in the cases of mild DAI, whereas in the severe DAI located in a basal ganglia, corpus callosum, dorsal part of the brain stem as well as the cerebral white matter. As for the finding of CT, these parencymal lesions were not visualized in mild or moderate DAI.
Our series suggested that MRI is superior to CT on the diagnosis of DAI and provides some informations to evaluate the severity of DAI.
KeywordsMagnetic Resonance Image Corpus Callosum Severe Head Injury Cerebral White Matter Computerize Tomo
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