MRI shows traumatic brain lesions not shown on CT

 - Brain injury


MRI indicated brain contusions and axonal injury independently associated with poorer three-month outcome after mild traumatic brain injury (MTBI), according to a study published online Dec. 7, 2012, in Annals of Neurology .


Yuh and colleagues reported that MRI identified many more acute traumatic intracranial lesions than CT. A total of 27 percent of participants had abnormal CT results. However, among the 98 patients without CT evidence of skull fracture or acute intracranial injury, 28 percent had abnormal MRI results. These findings included 23 patients with hemorrhagic axonal injury, three patients with brain contusions and four patients with extra-axial hematomas.


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