Patent ID: 6438401
Filing Date: 2002-08-20
Classification: A61B,A61N

Abstract:
A method for identifying and quantifying departures in placement of needles or catheters from intended placements in a treatment plan for treating a bodily organ, the needles or catheters carrying seeds for insertion into the bodily organ for use in the treatment plan, the method comprising:(a) inserting the needles or catheters into the bodily organ, so as to deposit the seeds, and inputting actual placements into an intraoperative tracking interface; (b) for at least one needle or catheter carrying seeds, calculating a difference between an intended placement of that needle or catheter and the actual placement of that needle or catheter; (c) calculating, from the difference calculated in step (b), a position error for each of the seeds; and (d) recalculating a dosimetry associated with at least one of the seeds in accordance with the position error calculated in step (c).