CORRECTION OF PROBE PRESSURE ARTIFACTS IN FREEHAND 3D ULTRASOUND - FURTHER RESULTS AND CONVEX PROBES
G.M.Treece, R.W.Prager, A.H.Gee and L.Berman.
October 2001
An algorithm has been presented in a previous technical report which combines non-rigid image-based registration and conventional position sensing to correct probe-pressure-induced registration errors in freehand three-dimensional (3D) ultrasound volumes. Visual results indicated that the algorithm increased both the clarity and accuracy of reslices through in vivo volumetric data sets. These initial findings are verified in this report by more rigorous experiments leading to numerical results. In addition, it is shown how the original algorithm can be extended to apply to convex probes which generate compressions varying in the lateral direction as well as in depth.
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