Echo Calculator Suite

Use only with a comprehensive adult echocardiogram and adequate signals. This aid does not diagnose HFpEF and does not replace clinical interpretation.

Do not average discordant MVA methods. Integrate morphology, direct planimetry, mean gradient at the reported heart rate and rhythm, pulmonary pressure, loading conditions, and method-specific limitations.

Quantitative values are components of an integrative MR assessment, not an autonomous severity diagnosis. Confirm mechanism, jet timing, Doppler and volume quality, loading conditions, chamber response, and method applicability.

AR PISA is technically demanding. Confirm the convergence zone, baseline shift, jet alignment, and whether the orifice geometry is suitable before relying on the result.

This method assumes no important intracardiac shunt or pulmonic regurgitation and requires carefully matched LVOT/RVOT measurements and representative beats.

IVC respiratory variation is unreliable during positive-pressure ventilation. Use the complete right-heart examination and invasive measurement when clinical decisions require greater certainty.

Exaggerated inflow variation is supportive of tamponade physiology only; it is not a stand-alone diagnosis. Integrate symptoms, blood pressure and pulsus, effusion size/distribution and rate, chamber collapse, IVC/hepatic-vein findings, ventricular interaction, and the complete examination.

This is a curated starter dataset, not an exhaustive manufacturer catalogue. Baseline post-implantation measurements, leaflet/disc motion, flow state, pressure recovery, prosthesis-patient mismatch, and serial change remain essential.

Use only with PHN-compatible measurement conventions in patients within the source population. Do not mix PHN outputs with another z-score model in longitudinal decisions.

Reference intervals, decision thresholds, and severity partitions are kept separate and source-labelled. The complete examination and laboratory-adopted standards remain authoritative.