1. Åsmund Birkeland Vessels and Blood Flow from Ultrasound

2. Vessel Extraction from Ultrasound Ultrasound Painting of Vascular Tree [VMV2010] Quickly extract 3D models live during examination Minimize interaction Using basic 2D B-mode ultrasound + tracking

3. Vessel Extraction from Ultrasound

4. Challenges Holes in the surface Surface artifacts Tracking calibration Motion compensation

5. New Directions

6. New Vessel Geometry Implicit surfaces from points and tangents Smooth Hole-free Cooperation with IMPA, Brazil [Ives Macedo 2011]

7. New Data New 4D ultrasound streaming (Dag Magne Ulvang) Volume registration (Ola Kristoffer Øye)

8. Live 3D Blood Flow Input: 3D vascular structure and Doppler data Illustrative depiction of 3D flow on vessel geometry Environments 1.Flow phantom 2.Carotid artery 3.Hepatic/portal vascular tree

9. Live 3D Blood Flow

10. Questions?