This video shows motion analysis of deformable prostate phantom while needle is inserted. In order to analyze motion, Lukas-Kanade optical flow method was used. This video also shows that while the needle is inserting, prostate phantom moves due to stick-slip forces. Thus, needle tip and deformable tissue must be tracked simultaneously for successful biopsy. Note, the raw video was downloaded from YouTube*.
This video shows that deformable tissue tracking using thin plate spline motion model while needle is inserting into prostate phantom. Four control points were selected and 2D 15×15 nodes are created to show the deformation. Control points are shown with ‘o’ and ‘+’ indicates nodes. Note, the raw video was downloaded from YouTube*.