3D vs 4D Ultrasound
Understand motion (4D) versus still 3D snapshots for keepsakes.
Quick answers
What is the difference between 3D and 4D ultrasound?
3D ultrasound is a still volumetric snapshot; 4D adds time so you see motion. Keepsakes typically use a high-quality 3D frame.
4D is helpful clinically and emotionally in the moment. For printing, we select a volumetric snapshot with clear surface detail rather than a video clip.