Instrumentation

Abstract

Real-time scanners fall into two basic groups: the true real-time systems with a frame rate greater than the flicker fusion rate of the eye (over 16 frame/s) and what we are defining as quasi-real-time scanners with a frame rate below the flicker fusion rate of the eye. All of the true real-time ultrasound scanners are hand-held and freely moveable scanning assemblies. The quasi-real-time scanners usually have larger and heavier scanning assemblies that require support from an overhead arm.