Modern Tools for Cardiology #MedEd
By Ruey Hu and the Computational Cardiology Team
Focused calculators and interactive tools for learning core topics in cardiology.
Explore the toolsFrom PDF to Practice: why we build these tools
AtheroPrevASCVD.orgPrevent Events
Estimate cardiovascular risk, see which risk enhancers apply, and explore how treatment choices change the outlook, with the formulas and guideline sources shown.
The mark · LDL particleAn apoB lipoprotein: a ring of phospholipid heads around a core marked with the sterol ring of cholesterol. It is the particle that prevention aims to lower.
Stressing WiselyStressingWisely.orgSelecting the Right Ischemic Test
Describe a patient with suspected or known chronic coronary disease and see which stress test or imaging study best fits, according to the current appropriate use criteria.
2023 · National Quality Improvement AwardAmerican Society of Nuclear CardiologyThe mark · Polar mapThe bullseye that nuclear, echo and CMR all share. The red apex marks the territory in question; choosing the test that sees it best is the point.
Table Manners: Pan with a PlanTableManners.rueyhu.com
Operate a simulated cath-lab table and C-arm in a 3D room, and watch the imaging geometry, radiation and fluoroscopy image respond together. Built for cardiology fellows and cath-lab technologists.
The mark · C-armThe whole cath lab in one shape: the C-arm, with the detector above and the X-ray tube below, swung around the table at isocenter. Four tints run along the arc like the angles you rotate through, and the red point marks the isocenter you pan to.
HeartGramHeartGram.orgThe Art(ery) of Seeing
Move a simulated C-arm to any angle and see how the coronary arteries appear on angiography, with foreshortening and overlap shown for each segment, and a layer for marking stenoses and stents.
The mark · Coronary treeA right-dominant coronary tree laid on a faint heart. Each artery has its own tint, the way HeartGram names and colors segments in every projection.
Troponin ToolboxTroponin.orgUnpacking Myocardial Infarction
Interpret high-sensitivity troponin, classify a possible myocardial infarction under the Universal Definition, and browse the ACS guideline and key papers.
2023 · Faculty Educational Innovation GrantYale School of Medicine, Department of Internal MedicineThe mark · Troponin complexTroponin C, I and T sit on the actin thin filament, with tropomyosin running through it. This is where the biomarker comes from, drawn the way it looks under the model.
E/e'ureka: Echo ReadingEureka.rueyhu.comThe Sound of Understanding
Interpret echocardiograms step by step and write the echo report, built for cardiologists and cardiology fellows.
The mark · LightbulbThe eureka lightbulb with the apical four-chamber view filling the glass: the ventricles at the apex, the atria below, the valves between. The moment a confusing echo study makes sense, drawn as the image fellows learn first.
GDMT for EveryoneGDMT.orgHeart Failure to Heart Success
Step through heart failure medical therapy, and check what labels, guidelines and reviews say about each drug at each stage of kidney function.
2022 · Winner, KCVD Educational Tools ContestAmerican Heart Association, Council on Kidney in Cardiovascular DiseaseThe mark · Four pillarsFour columns hold up the roof: ARNI, β-blocker, MRA and SGLT2 inhibitor. Take one away and the structure is weaker.
DecongesterDiurese.orgKeep Calm and Nephr On
Work through congestion, perfusion and kidney function in heart failure, and see how loop diuretics act along the nephron.
2025 · Winner, KCVD Educational Tools ContestAmerican Heart Association, Council on Kidney in Cardiovascular DiseaseThe mark · Loop of HenleThe hairpin of the nephron where loop diuretics act, colored from the descending limb to the thick ascending limb. Decongestion starts here.
SwanologySwanology.orgHemodynamic Interpretation
Enter right heart catheterization numbers to see derived hemodynamics, with every formula shown, and learn to read central venous pressure waveforms.
The mark · SwanA swan with an arched wing and a lifted tail, its neck curving down into the body. It is a nod to the Swan-Ganz catheter, whose curve the neck echoes.
CardsOnc CO-PilotCardsOnc.org
A companion for cardio-oncology: follow patients and plans of care that bring cardiology and oncology together.
The mark · Awareness ribbonThe awareness ribbon, drawn in one continuous sweep in all six tints, for every cancer the service sees. Two strands cross, the way two specialties do.
CardioOB: Two Hearts, One MissionCardioOB.org
Look up the 2025 ESC guideline for cardiovascular disease and pregnancy: mWHO risk class, emergency algorithms, valve anticoagulation, hypertension and drug safety, with class and level always shown beside each recommendation.
The mark · Heart within a heartA small heart held inside a larger one. Two patients and one plan of care.
Finding Hemo: Follow the FlowHemodynamics.org
Change the heart and circulation and watch pressures, flows and volumes respond. Guided lessons and cases, plus a full laboratory of pressure-volume loops, waveforms and measurements.
The mark · Magnifying glass over a PV loopA magnifying glass, for finding, over the pressure-volume loop: filling, isovolumic contraction, ejection and relaxation traced as one continuous line in four tints, its faint fill the stroke work. The green end-systolic line runs edge to edge under the lens, and the red point marks end-systole, where contractility is read.
PQRSTudioMusicOfTheHeart.rueyhu.comHeartbeat to Soundbeat
Turn a heartbeat into music: explore how the P, QRS and T waves of the ECG can be heard as a soundbeat.
The mark · Eighth-note beatThe R wave becomes the stem of an eighth note, with the head where Q would be and a flag off the R peak. Heartbeat to soundbeat in one stroke.
