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Fig. 6 | The Ultrasound Journal

Fig. 6

From: Rationale for using the velocity–time integral and the minute distance for assessing the stroke volume and cardiac output in point-of-care settings

Fig. 6

Absolute values of the left ventricular tract velocity–time integral (LVOT VTI, yellow boxes) and minute distance (LVOT × heart rate (HR, white boxes)) for estimating the stroke volume (SV) and cardiac output (CO), respectively. a LVOT VTI of 19 cm and HR of 93 beats/min, indicating a normal SV and CO (the minute distance is 1748 cm/min). b LVOT VTI of 26 cm and HR of 113 beats/min, indicating a high SV and CO (the minute distance is 2912 cm/min). c LVOT VTI of 8 cm and HR of 68 beats/min, indicating a low SV and CO (the minute distance is 544 cm/min)

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