Brain Met

[Lani]

as understand it, It was explained to me 18-19 years ago by the neurosurgeon @ Stanford who invented the cyberknife) the cyberknife's specialty is esopecially well suited for large tumors because its pin point accuracy let's a surgeon go back and zap the tumor in several sessions without overradiating nearby spots because the positioning is not exactly the same each session even when gamma knife is used with a "halo" and any overlap of fields between sessions opens the possibility of nearby areas receiving too high a dose.

cyberknifes appear to be available @ PA, The Royal Marsden Hospital in London, England, The Barts Cancer Center at St. Bartholomew’s Hospital in London, England, the London CLinic and the Harley Clinic

Hope this helps.