Fetal Echo · CHD Differentials

EchoAssist™ Navigator — Fetal Echo

Select a fetal cardiac finding to generate a differential diagnosis and clinical guidance.

Protocol Progress

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0% completeCritical: 0/10

Situs determination (stomach, liver, IVC, Ao)Critical

Cardiac axis (normal 45° ± 20°)Critical

Cardiac position (levocardia, mesocardia, dextrocardia)Critical

4-Chamber view: chamber size, AV valves, IVS, IASCritical

LVOT / 5-Chamber view: aortic continuity, VSDCritical

RVOT / 3-Vessel view: PA, Ao, SVC, ductusCritical

3-Vessel Trachea view: vessel alignment, arch sidednessCritical

Aortic arch: sidedness, isthmus size, retrograde flow?Critical

Ductal arch: patency, flow direction

Pulmonary veins: all 4 draining to LA (color Doppler)Critical

IVC / SVC: confirm connections to RA

Cardiac rhythm: regular rate 120–160 bpmCritical

Pericardial effusion

Biometry: GA, EFW, cardiothoracic ratio

AV valve regurgitation (color Doppler)

Ductus venosus waveform (if indicated)

Situs Solitus

Stomach left, liver right, apex left. Normal arrangement.

Situs Inversus

Mirror image. Stomach right, liver left, apex right.

Situs Ambiguus

Heterotaxy. Bilateral right (asplenia) or bilateral left (polysplenia).