The Role of Focused Echocardiography in Pediatric Intensive Care: A Critical Appraisal

Figure 2

Stroke volume (SV) calculation. (a) Measurement of LV outflow tract diameter (LVOTD) using the parasternal long-axis view, and (b) use of pulsed Doppler for the measurement of velocity-time integral (VTI), as obtained in the 5-chamber apical view. Cardiac output (CO) = SV × HR; SV = VTI × LVOT area, where LVOT area =  .

(a)

(b)