Saturations. • Pressures. • Calculations Thus Qp/Qs can be calculated. Qs = Rate of O2 extraction / change in O2 content. Qp = Rate of O2 addition/ ...
1 jui. 2013 Qp = Pulmonary flow. Qs = Systemic flow. Qp:Qs describes the magnitude of a cardiovascular shunt. Normally = 1:1. Left to right shunts >1.0.
pulmonary---systemic flow ratio (Qp/Qs): What it is how to calculate it
and who had pulmonary and systemic flow ratios (QP:QS) determined by Doppler echocardiography simultaneously with green dye-shunt calculations in the
The ratio RSV/LSV determined by the duplex Doppler echocardiography
19 déc. 1972 A new method of determining pulmonary-to-systemic flow ratios (Qp/Qs) in patients with left-to-right shunts using radionuclide ...
ed. The Qp/Qs ratio was calculated by the modified Fick equation where Qp/Qs is equal to the following: Aortic saturation – Mixed venous saturation.
Despite the emergence of echo Doppler and MRI techniques for determining right shunting: limitations of the Qp/Qs ratio. American Journal of Cardiology ...
calculations—shunt ratio (Qp:Qs) pulmonary blood flow
Objective: Imbalances of pulmonary to systemic blood flow ratio (Qp/Qs) compounded with inadequate Postoperative management and data calculation.
Pulmonary to systemic flow ratio (Qp:Qs) The calculation is based on the Fick principle by which both pulmonary and systemic ?ow may be estimated As such factors as oxygen carrying capacity and oxygen consumption are used for each individual calculation (for pulmonary and for systemic ?ow) they cancel
The QP/QS ratio (QP = pulmonary circulation and QS = systemic circulation) is calculated by dividing the surface area under the fitted curve (A1) by the difference between this surface area and the surface area under the fitted early recirculation curve