AJNR. American journal of neuroradiology
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AJNR Am J Neuroradiol · Apr 2002
Comparative StudyRelationship between findings of conventional and contrast-enhanced transcranial color-coded real-time sonography and angiography in patients with basilar artery occlusion.
Contrast-enhanced transcranial color-coded real-time sonography (TCCS) is a promising tool for the evaluation of brain circulation. The purpose of the present study was to assess the diagnostic ability of conventional and contrast-enhanced TCCS in patients with acute stroke and basilar artery occlusion and to compare the findings with those of angiography. ⋯ Contrast-enhanced TCCS is more sensitive in imaging basilar artery flow than is conventional TCCS. When examined with contrast-enhanced TCCS, a combination of absent basilar artery flow and the reversed basilar artery flow sign may be a diagnostic indicator of basilar artery occlusion.
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The contribution of MR imaging to identify hypoxic-ischemic injuries has been studied mostly in neonates or adults. The purpose of this study was to describe the MR imaging findings of toddlers and older children with hypoxic coma and to analyze the prognostic value of an MR imaging scoring system. ⋯ The MR imaging scoring system proposed in this study can be used to establish an early prognosis in a significant proportion of children with hypoxic coma. It is helpful, even during the first 3 days after the event. However, some patients with definite abnormal MR imaging findings may experience good neurologic evolution.