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#### Qp/Qs Calculator

A sample calculation is shown below

LVOT diameter

LVOT VTI

RVOT diameter

RVOT VTI

The equation for right sided cardiac output (Qp) over left sided cardiac output (Qs) is

Qp = [(RVOT diameter/2)^2*pi] * RVOT VTI

Qs = [(LVOT diameter/2)^2*pi] * LVOT VTI

pi cancels out since it is in the numerator and denominator so this =

(2.4cm/2)^2*23cm

(1.9cm/2)^2*22cm

= 33.2/19,9 = 1.7

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