AJNR. American journal of neuroradiology
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AJNR Am J Neuroradiol · Aug 1998
Fluoroscopic MR of the pharynx in patients with obstructive sleep apnea.
The purpose of our study was to introduce an ultrafast MR imaging technique of the pharynx as a diagnostic tool for viewing the mechanism of obstruction in patients with obstructive sleep apnea. ⋯ We believe that ultrafast MR imaging is a reliable noninvasive method for use in the evaluation of obstructive sleep apnea.
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AJNR Am J Neuroradiol · Aug 1998
Intracranial pressure monitoring during intraarterial papaverine infusion for cerebral vasospasm.
Intraarterial papaverine infusions are performed to reverse cerebral arterial vasospasm resulting from subarachnoid hemorrhage, but such infusions may lead to increases in intracranial pressure (ICP). This study was undertaken to determine when ICP monitoring is indicated during papaverine treatment. ⋯ ICP monitoring during intraarterial papaverine infusions for cerebral vasospasm is recommended for all patients and is particularly important for patients with elevated baseline ICP. Continuous ICP monitoring facilitates safe and time-efficient drug delivery.
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We report the appearance of a cavernous malformation associated with a developmental venous anomaly in a young boy 3 years after radiation therapy for a posterior fossa medulloblastoma. The presence of a stenosis of the venous drainage of the anomaly led us to postulate that venous restrictive disease, induced by radiation therapy, resulted in increased venous pressure and caused the formation of the cavernous malformation.
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AJNR Am J Neuroradiol · Jun 1998
Multiple sclerosis of the spinal cord: diagnosis and follow-up with contrast-enhanced MR and correlation with clinical activity.
Although MR findings in multiple sclerosis (MS) are well known, the relationship between MR-detected lesions and clinical activity has not been studied in the spinal cord. The purpose of this study was to determine whether serial MR imaging provides evidence of disease activity unsuspected on clinical examination and to determine whether it is useful in monitoring patients with MS primarily affecting the spinal cord. ⋯ Serial MR imaging provides evidence of disease activity unsuspected on clinical examination and could be useful in monitoring patients with MS primarily affecting the spinal cord.