Key result
Direct assessment using high-resolution imaging demonstrates that middle cerebral artery diameter changes during alterations in arterial blood gases and blood pressure, refuting the assumption of constancy.
Design
Editorial
Authors
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This article highlights that middle cerebral artery diameter changes during blood gas and blood pressure alterations, suggesting that MCA velocity measured by transcranial Doppler cannot be assumed to accurately represent changes in cerebral blood flow.
This article highlights that middle cerebral artery diameter changes during blood gas and blood pressure alterations, suggesting that MCA velocity measured by transcranial Doppler cannot be assumed to accurately represent changes in cerebral blood flow.
Hoiland et al. (2016) conducted an editorial in Cerebrovascular physiology. Transcranial Doppler ultrasound (TCD) vs. High-resolution imaging (MRI/ultrasound) was evaluated. Direct assessment using high-resolution imaging demonstrates that middle cerebral artery diameter changes during alterations in arterial blood gases and blood pressure, refuting the assumption of constancy.
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