Nanoknife is a FOCAL therapy similar to laser, cryo in that it only targets cancer cells.
But targeting cells is tricky stuff even with the best scanning technology. Only tumors of a certain size will show up on scans. What about tiny clumps of three or four cells which have not grown to a viewable size?
I applaud any treatment that can spare an individual from the side effects of RP or radiation but I am also concerned that treatment might not kill all the cancer present in the entire gland.
Just my opinion and not an endorsement or criticism of any treatment.