Why the study?
Does continuous acquisition MRI accurately measure time-averaged flow in the carotid arteries compared to Doppler ultrasound in normal volunteers?
Population
10 normal volunteers
Comparison
Time-averaged flow measurement using continuous… vs Doppler ultrasound using a Duplex scanner
Design
Other
Follow-up
2-4 weeks (for reproducibility assessment)
Authors
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Moderate correlation in volunteers warrants caution before clinical adoption; leaves open validation in patients and against reference standards.
Does continuous acquisition MRI accurately measure time-averaged flow in the carotid arteries compared to Doppler ultrasound in normal volunteers?
Continuous acquisition MRI provides a valid and reproducible non-invasive method for measuring time-averaged flow, comparable to Doppler ultrasound, particularly useful for vessels inaccessible to ultrasound.
Tarnawski et al. (1990) studied this question.
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