Revista de neurologia · 2017
Neurovascular ultrasound in emergency settings: diagnostic and therapeutic aspects.
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Santos T, Veloso M, Barros P
Аннотация
INTRODUCTION: Neurovascular ultrasound is a non-invasive, portable and fast imaging method that, when performed by an experienced neurosonologist, offers reliable and reproducible information on the morphological and hemodynamic status of cervical and intracranial vessels.
AIM: To review the available evidence regarding the use of this tool in the approach to acute stroke.
DEVELOPMENT: Neurovascular ultrasound can be used in one of two ways: diagnostic and therapeutic. Considering the low recanalization rates of internal carotid artery and proximal medial cerebral artery occlusions with intravenous recombinant tissue plasminogen activator (r-tPA), neurovascular ultrasound used shortly in Emergency Department may help to select patients that could benefit from endovascular therapy. Moreover, ultrasound monitorization during intravenous r-tPA treatment allows the analysis of the pattern of arterial recanalization. Cervical ultrasound allows the assessment of the stenosis degree and the composition/surface of an arterial plaque that could, for instance, reveal earlier a candidate for carotid intervention. Finally, the therapeutic potential of ultrasound is also being investigated. Sonothrombolysis and sonolysis, that combine ultrasound technology with r-tPA and use exclusively the ultrasound to lyse the clot, respectively, showed promising results.
CONCLUSION: Neurovascular ultrasound has greatly expanded to assume an important role in the study of cerebrovascular disorders.
AIM: To review the available evidence regarding the use of this tool in the approach to acute stroke.
DEVELOPMENT: Neurovascular ultrasound can be used in one of two ways: diagnostic and therapeutic. Considering the low recanalization rates of internal carotid artery and proximal medial cerebral artery occlusions with intravenous recombinant tissue plasminogen activator (r-tPA), neurovascular ultrasound used shortly in Emergency Department may help to select patients that could benefit from endovascular therapy. Moreover, ultrasound monitorization during intravenous r-tPA treatment allows the analysis of the pattern of arterial recanalization. Cervical ultrasound allows the assessment of the stenosis degree and the composition/surface of an arterial plaque that could, for instance, reveal earlier a candidate for carotid intervention. Finally, the therapeutic potential of ultrasound is also being investigated. Sonothrombolysis and sonolysis, that combine ultrasound technology with r-tPA and use exclusively the ultrasound to lyse the clot, respectively, showed promising results.
CONCLUSION: Neurovascular ultrasound has greatly expanded to assume an important role in the study of cerebrovascular disorders.