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Table 5 Rest and stress algorithm set

From: WEB downloadable software for training in cardiovascular hemodynamics in the (3-D) stress echo lab

Calculated values Method Measure unit
Body Surface Area (BSA, at rest) Sq.Root {(Kg.)*(Cm.)/(3600)} M 2
(rest, and peak stress)   
Stroke Volume (SV) EDV - ESV mL
Cardiac Output (CO) stroke volume * heart rate L/min
Mean Arterial Pressure (MAP) (SBP-DBP)/3 + DBP mmHg
Pulse Pressure (PP) SBP-DBP mmHg
End Systolic Pressure (ESP) SBP * 0.9 mmHg
LV Elastance ( E es ) index ESP/ESV * BSA -1 mmHg/mL/m 2
Effective arterial elastance index ( E ai) ESP/SV * BSA -1 mmHg/mL/m 2
Ventricular-Arterial Coupling (VAC) E es/E a = (ESP/ESV)/(ESP/SV) = SV/ESV ratio
Systemic Vascular Resistance (SVR) 80 * (MAP- 5) ⁄ Cardiac output (dyne*sec)/cm 5
systemic arterial Compliance (C) Stroke Volume/Pulse Pressure mL/mmHg
Mitral E/e'   ratio
Diastolic Mean Filling Rate (SVi/Cardiological Diastolic Time) × 1,000 mL/m 2 × sec -1
Diastolic time/systolic time ratio M-Mode or Sensor ratio
And, for right heart function:   
Pulmonary Artery Systolic Pressure (PASP) 4×(Tricuspid regurgitant velocity)2 + Right Atrium Pressure mmHg
Pulmonary Artery Diastolic Pressure (PADP) 4×(Pulmonary artery end-diastolic velocity)2 + Right Atrium Pressure mmHg
Mean PA Pressure(MPAP) 1/3(SPAP) + 2/3(PADP). mmHg
Mean PA Pressure (MPAP) 4×Peak pulmonary regurgitant velocity2 mmHg
Pulmonary Artery Pulse Pressure (PAPP) 4×(Tricuspid regurgitant velocity)2 - 4×(Pulmonary artery end-diastolic velocity)2 mmHg
Pulmonary Vascular Resistance (PVR) PVR = 80 × (MPAP - PCWP)/CO (dyne*sec)/cm 5
Pulmonary Vascular Resistance (PVR) 10 × Tricuspid regurgitant velocity/PTVI Woods units
X 80 = (dyne*sec)/cm 5
Pulmonary Vascular Capacitance (PVC) Stroke Volume/Pulmonary Artery Pulse Pressure mL/mmHg
  1. SBP = Systolic blood pressure; DBP = Diastolic blood pressure; TR = Tricuspid regurgitation; EDV = End-diastolic volume; ESV = End-systolic volume; RV = Right ventricular; PCWP = Pulmonary capillary wedge pressure; PTVI = Pulmonary time velocity integral; MPAP = Mean pulmonary artery pressure; SPAP = Systolic pulmonary artery pressure; PADP = Pulmonary artery diastolic pressure; MAP = Mean arterial pressure; SV = Stroke volume