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Fig. 1 | Journal of Intensive Care

Fig. 1

From: The time cost of physiologically ineffective intravenous fluids in the emergency department: an observational pilot study employing wearable Doppler ultrasound

Fig. 1

The wearable Doppler ultrasound and its interface. A The device on a healthy volunteer. B Carotid Doppler spectra showing calculation of carotid corrected flow time (ccFT) by the equation of Wodey. Velocity is on y-axis in centimeters per second (cm/s) and time on x-axis in seconds (s); heart rate (HR) is calculated from cycle length. C Example of a preload challenge shown on the graphical user interface of the wearable Doppler. Each green bar represents the ccFT of a single cardiac cycle; the y-axis is ccFT in milliseconds and the x-axis is time in seconds

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Journal of Intensive Care

ISSN: 2052-0492