AJNR. American journal of neuroradiology
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AJNR Am J Neuroradiol · Aug 1994
Deep gray matter involvement in children with acute disseminated encephalomyelitis.
To review the frequency, distribution, and extent of deep gray matter disease in children with acute disseminated encephalomyelitis. ⋯ Involvement of deep gray matter was common in our small series. The finding of T2 prolongation in these structures does not preclude the diagnosis of acute disseminated encephalomyelitis in the proper clinical setting. Because thalamic involvement is reported to be rare in multiple sclerosis, it may prove useful in distinguishing between acute disseminated encephalomyelitis and the initial presentation of multiple sclerosis.
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AJNR Am J Neuroradiol · Aug 1994
Enhanced lumbar nerve roots in the spine without prior surgery: radiculitis or radicular veins?
To evaluate the clinical significance of continuous intradural lumbosacral nerve root enhancement in symptomatic patients without prior lumbar surgery. ⋯ Lumbosacral nerve root enhancement correlates poorly with clinical radiculopathy. The use of contrast enhancement to detect lumbosacral nerve root enhancement in cases in which the unenhanced scan is less than diagnostic is not warranted. The high association between lumbosacral nerve root enhancement and entry-section flow-related enhancement suggests that these enhancing structures within the cauda equina are vessels. It is likely that lumbosacral nerve root enhancement represents intravascular enhancement of radicular veins and not a breakdown in the blood-nerve barrier.
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AJNR Am J Neuroradiol · Aug 1994
Correlation of intracranial pressure and transcranial Doppler resistive index after head trauma.
To investigate the usefulness of transcranial Doppler ultrasonography in the evaluation of intracranial pressure changes after head injury. ⋯ The relationship of ipsilateral measurements of intracranial pressure to resistivity index is valid. The resistivity index must be analyzed within the context of the particular disease studied, especially with respect to the hemodynamic alterations. Initial findings suggest that intracranial pressure monitoring cannot be replaced by serial transcranial Doppler measurements in the treatment of the patient with acute head injury.