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The incidence was estimated to be 0.1 patients per 100,000 patients per year.On MR images,the hematoma was in the anterior(n=8)or posterior(n=4) epidural space or both(n=1).The most common location was the upper thoracic region.T1-weighted images were most useful owing to the pathognomonic signal shift from isointensity with the cord in the early period to hyperintensity in the intermediate stage.Five patients had minor trauma,and four were receiving anticoagulant therapy.A rough estimation of the incidence of SSEH is provided,and the results confirm the previously described association with minor trauma and anticoagulant therapy and low frequency of arteriovenous malformations. |
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anticoagulant,complications of
anticoagulant,treatment
hematoma,epidural-spinal
malformation,vascular
MRI
MRI,abnormal
MRI,spine
risk factors
spinal cord,vascular malformation of
trauma
treatment of neurologic disorder
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