Abstract
Majority of medical practitioners use C-arm fluoroscopy in transrectal ultrasound (TRUS) guided prostate brachytherapy, but only in a qualitative manner. The ability to register the implanted seeds (that are visible in fluoroscope) to soft tissue anatomy (that is visible in TRUS) intra-operatively will allow us to make immediate provisions for dosimetric deviations from the optimal implant plan. The three major obstacles we face are: (a) discerning the 3D pose of the fluoro images, (b) registering fluoro space to TRUS space, and (c) reconstruct the position of seeds from multiple fluoro images.
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