Yesterday morning our 56th patient procedure with the APT system we successfully conducted. This was the first APT case to employ navigation with 3D Slicer and Andras Lasso's ProstateNav module.  The software worked flawlessly, and made it easy to detect some patient motion that occurred during the procedure.  Two injections and four biopsies were obtained. This was the 3rd patient at Johns Hopkins Hospital in collaboration with Katarzyna Macura M.D. Congratulations to Andras Lasso on his excellent work!