Engine preview — tap a point on the leg, then press and hold the bar (or the space bar) to compress.
Pressure0.00
Artery indented0 %
Vein flattened to100 %
Echodensity—
—
Tap a number to go to that point (keys 1–6).
Drawn from the model, not by hand: vein blue, artery red, dashed where it runs behind the
femur. The pale band between 4 and 6 is the femoral-vein sweep — the third zone.
The probe shows where you are scanning; it slides, turns and sinks as you do.