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University of Cambridge > Engineering Department > Machine Intelligence Lab > Medical Imaging Group

Graham Treece

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In vivo surface reconstruction examples

( Look here for some more geometrical objects ... )

( N.B. - These surface displays use splatting of points rather than a surface triangulation.)

These examples are from ultrasound scans recorded at Addenbrookes Hospital, Cambridge. In each case, about 20 scans were used to reconstruct the surface of the organ. This reconstruction only takes 10 seconds or so on a modern computer. Click on the surface reconstructions to see a video of the rotating surface.

Human kidney, scanned in transverse sections

B-scan of transverse kidney

a) One of the original ultrasound B-scans

Transverse kidney contours Transverse kidney surface
b) Manually segmented contours c) Surface reconstruction

The same kidney, scanned in longitudinal sections

B-scan of longitudinal kidney

a) One of the original ultrasound B-scans

Longitudinal kidney contours Longitudinal kidney surface
b) Manually segmented contours c) Surface reconstruction

Human bladder

B-scan of bladder

a) One of the original ultrasound B-scans (also showing the prostate)

Bladder contours Bladder surface
b) Manually segmented contours c) Surface reconstruction

© 2005 Cambridge University Engineering Dept and Graham Treece .
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