Stroke Volume & Cardiac Output Measurement on POCUS

Accurately measure LVOT diameter:

1. Obtain PLAX 

2. Zoom to LVOT

3. Measure at mid systole, 1cm from aortic valve apparatus 

Calculate VTI:

1. Obtain A5c view

2. Place PW doppler into LVOT

3. Run PWD trace

4. Trace around PWD trace

CO = HR x LVOT VTI x π (LVOT Diam/2) 2

SV = LVOT VTI x π (LVOT Diam/2) 2 



- Dr. Jonny Wilkinson @Wilkinsonjonny



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