Cardiac calculators

MK

Electrocardiography and exercise

QTc calculatorBazett, Fridericia, Framingham, Hodges · wide-QRS adjustment Duke treadmill scoreBruce protocol · achieved vs predicted METs

Risk scores

TIMI risk scoreUnstable angina / NSTEMI · 14-day event rate Revised Cardiac Risk IndexMajor cardiac complications of noncardiac surgery CHA₂DS₂-VASc + HAS-BLEDStroke and bleeding risk in atrial fibrillation Heart failure classificationNYHA class · ACC/AHA stage HCM Risk-SCD5-year sudden death risk in hypertrophic cardiomyopathy

Catheterization

Right heart cathFick and thermodilution output, PVR, SVR, PAPi · PH classification

Echocardiography

Echo CalcLV mass and volumes, flow and Qp:Qs, AS, MS, regurgitation, right heart, diastolic function (ASE 2025 / 2016), aorta, stress test

Cardiac MRI

LGE 17-segment scorerAHA bullseye · report text Mitral & tricuspid regurgitationRegurgitant volume and fraction from volumes and flows Synthetic hematocritFrom native LV blood-pool T1 at 1.5 T CMR CalcVentricular volumes, valvular regurgitation (AR/PR direct, MR/TR indirect), Qp:Qs with regurgitation adjustment

General

Creatinine clearanceCockcroft-Gault METs calculatorMET-minutes and energy expenditure by activity