The Stradx 3D Ultrasound Acquisition and Visualisation System. - Documentation for Stradx, a tool for 3D ultrasound acquisition. Stradx runs on SGI workstations and uses magnetic position sensing devices produced by Ascension Technology Corporation and/or Polhemus Inc. svr-www.eng.cam.ac.uk/~rwp/stradx
Voxar (UK, USA) - picture processing for 3-D Ultrasound. www.voxar.com