Graduate-level ultrasound education · free for everyone
Everything about ultrasound — from the wave equation to the bedside.
A rigorous, credential-aligned curriculum that takes you from acoustic physics and Doppler hemodynamics through artifacts to clinical scanning across every major organ system. Built around real, de-identified ultrasound cine loops you can play, freeze, optimize, and measure yourself, plus live, rotatable 3D anatomy. Every lesson carries objectives, derived equations, reference values, worked examples, and registry-style assessment with cited rationales. Free, forever, for residents and techs.
Foundations — Sonographic Principles & Instrumentation
The physics gateway required for every ARDMS credential (the SPI examination), and the foundation under all clinical scanning.
Ultrasound Physics & Instrumentation
The physical foundation every sonographer must master: wave physics, pulse-echo imaging, tissue interaction, transducers, beams, resolution, and the signal path. Maps to the ARDMS SPI examination.
Doppler & Hemodynamics
The physics of flow measurement and the hemodynamics behind it: the Doppler equation and insonation angle, PW/CW and aliasing, spectral/color/power Doppler, and the Bernoulli/continuity quantification used across vascular and echo. Doppler is ~34% of the SPI exam.
Ultrasound Artifacts
Every artifact is a visible consequence of an assumption the scanner is forced to make. Learn the assumptions framework, the propagation and attenuation/resolution artifacts, how to confirm and eliminate each — and which artifacts are diagnostically useful.
Clinical capstone — scanning across organ systems
Apply the physics at the bedside on real clips: focused cardiac, lung/pleura, abdomen & aorta, vascular, and obstetric sonography. For EM, IM, critical care, cardiology, radiology, and OB residents — and sonography students.
The learning pathway
Foundations build the physics that every credential and every scan rests on; the clinical capstone applies it on real ultrasound across organ systems.
- Physics & Instrumentation (SPI) — wave physics, transducers, image optimization. Available now.
- Doppler & Hemodynamics — the Doppler equation, spectral/color/power, flow physics. Available now.
- Artifacts — the assumptions the scanner makes, and what breaks them. Available now.
- Clinical ultrasound — knobology, cardiac, lung, abdomen/aorta, vascular, OB — on real interactive clips. Available now.
- Registry review — weighted mock exams and maintenance of certification. In development.