Åsmund Birkeland Vessels and Blood Flow from Ultrasound.

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Presentation transcript:

Åsmund Birkeland Vessels and Blood Flow from Ultrasound

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

Vessel Extraction from Ultrasound

Challenges Holes in the surface Surface artifacts Tracking calibration Motion compensation

New Directions

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

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

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

Live 3D Blood Flow

Questions?