What is the Bernoullis formula? - Answers 4 (v)
What is the CSA? - Answers 1. 0.785 x D2
What is stroke volume? - Answers CSA x VTI
What does VTI measure and calculate? - Answers Mean velocity and mean pressure
What does peak velocity measure and calculate? - Answers Peak/Max velocity and peak
pressure gradient
What is cardiac output? - Answers SV x HR/ 1000
What is pressure half time? - Answers 220/PHT
What is the continuity equation for MV? - Answers CSA(LVOT) x VTI (LVOT) / VTI (MV)
What is the continuity equation for AOV? - Answers CSA(LVOT) X VTI(LVOT) / VTI (AOV)
What is QP/QS? - Answers SV (RVOT)/ SV (LVOT)
What is RVSP in the presence of TR? - Answers 4 x (TR Peak Velocity) + RAP
What is RVSP int he presence of VSD? - Answers SBP - 4 x (VSD Peak Velocity)
What is RVSP in the presence of PDA? - Answers SBP - 4 x (PDA Peak Velocity)
What is LAP in the presence of Mitral regurgiation? - Answers SBP - 4 (VMR) 2
What is PISA for MV? - Answers 6.28 x r2 x Aliasing velocity / MV E Wave velocity
What is PISA for AOV? - Answers 6.28 x r2 x aliasing velocity/ AO Regurgitant peak velocity
Calculate the Mitral Valve Area using the PHT method:
PHT= 203 m/s
a. .92 mmHg
b. 1.08 cm2
c. .92 cm2
d. 1.08 mmhg - Answers b
Calculate the peak pressure gradient:
, Peak Velocity AOV 5 m/s
a. 25 mmhg
b. 20 mmhg
c. 100 m/s
d. 100 mmhg - Answers d
Calculate the LVEDP with the following information
BP= 200/120 AOV RJet= 3.0 m/s
a. 84 mmhg
b. 164 mmhg
c. 120 mmhg - Answers a
What is the maximum pressure gradient of the aortic valve for a 2 m/s aortic velocity?
a. 20 mmhg
b. 64 mmhg
c. 6.4 m/s
d. 16 mmhg - Answers d
The pressure half time of the mitral valve is 280 m/s calculate the MVA
a. 1.0 cm2
b. .78 cm2
c. 2.0 cm2
d. .3 cm2 - Answers b
What is the aortic valve area using the given information