Echocardiography (TTE) Hub

Point-of-Care Ultrasound & Formal Transthoracic Echocardiography Chamber Quantification.

Cardiovascular UltrasoundCore · 30 min

Transthoracic Echocardiography (TTE) Fundamentals

Standardized imaging windows (Parasternal Long/Short-Axis, Apical 4/2/3/5-Chamber, Subcostal), modified Simpson’s biplane LVEF measurement, ASE/EACVI aortic stenosis grading, Beck’s triad & diastolic RV collapse in tamponade, and TAPSE RV systolic function cutoffs.

LVEF Cutoff (Simpson)

≥ 52% (M) / ≥ 54% (F)

Severe AS AVA

≤ 1.0 cm² (Mean ≥ 40 mmHg)

TAPSE RV Cutoff

≥ 17 mm (Normal)

Launch Complete Echocardiography Investigation

Interactive Echo Quantifier

Calculate biplane Simpson's LVEF with sex-specific cutoffs and grade aortic stenosis by Vmax, mean gradient, and valve area (ASE/EACVI thresholds).

Biplane Simpson's LVEF

End-diastolic volumemLEnd-systolic volumemLBiological sex (cutoff)

LVEF

60%

Stroke volume 72 mL

Normal cutoff ≥52%

LVEF 60% is preserved (≥52% for men).

Aortic Stenosis Grading (ASE/EACVI)

Peak jet velocity (Vmax)m/sMean gradientmmHgValve area (AVA)cm²

Severity

normal

Simplified Bernoulli ΔP ≈ 19 mmHg

Peak velocity <2.5 m/s with a normal valve area — no significant aortic stenosis.

Schematic teaching aid — not a substitute for a full ASE/EACVI study.

Full protocol and chamber views are in the echocardiography module.