Novel Doppler technique to assess systemic vascular resistance: the snuffbox technique.


BACKGROUND To explore an alternative to the systemic vascular resistance index (SVRI) for monitoring peripheral circulation in patients in the intensive care unit (ICU), the resistive index (RI) in the upper extremity arteries was measured by using surface Doppler ultrasound. METHODS AND RESULTS The correlation between RI and vascular resistance was… (More)


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