---

Formulas

(I) Echocardiography

1. Aortic Valve Dimensionless Index
2. AVA (Continuity Equation VTI)
3. AVA (Continuity Equation Vmax)
4. dP/dt (LV Contractility)
5. dP/dt (RV Contractility)
6. Left Atrial Pressure (MR)
7. LV EF (Modified and Simplified Quinones Equation)
8. LV Fractional Shortening
9. LV Mass and LV Mass Index
10. Mitral Valve Area (PHT)
11. Mitral Valvuloplasty Score (MGH)
12. Modified Bernoulli Equation
13. Myocardial Performance Index (LV) - Tei Index
14. Myocardial Performance Index (RV) - Tei Index
15. PCWP by E/Ea (Nagueh Formula)
16. PISA (Mitral regurgitation)
17. PISA (Mitral stenosis)
18. Qp/Qs (Echo)
19. RVSP (TR)
20. Stroke Volume (Echo)

(II) EKG

1. HR and Cycle Length
2. QTc

(III) Epidemiology

1. Risks and Numbers Need to Treat (NNT)
2. Test Performance

(IV) Exercise Stress Test

1. Duke Treadmill Score
2. Maximum Predicted Heart Rate by Age
3. Maximum Predicted Heart Rate by Date of Birth
4. Maximum Predicted Heart Rate (MPHR) Achieved
5. Mets and VO2 (Treadmill)
6. Rate Pressure Product (RPP)

(V) General Medicine

1. A-a Gradient
2. Body Mass Index (BMI)
3. Body Surface Area (BSA)
4. Body Water Deficit (BWD)
5. Creatinine Clearance (Cockroft-Gault)
6. Ideal Body Weight (IBW)
7. Lean Body Weight (LBW)
8. LDL Estimation (Friedewald Equation)
9. Serum Osmolarity

(VI) Hemodynamics

1. Aortic Valve Area (Gorlin)
2. Aortic Valve Area (Hakki)
3. Mitral Valve Area (Gorlin)
4. Mitral Valve Area (Hakki)
5. Mean arterial pressure
6. Mixed venous O2 Saturation
7. Pulmonary Vascular Resistance.
8. Systemic Vascular Resistance
9. Qp/Qs (O2 Saturation)

(VII) Unit Conversion (SI & US)

1. kg <> lb
2. C <> F
3. in <> cm
4. Glucose
5. Cholesterol
6. Triglyceride
7. BUN
8. Creatinine

Download Detailed Description

CardioMath Equations Info (935K)

- Click the icon above to download an Acrobat/PDF file with detailed descriptions of the formulas above.

 

 

---