They started off by introducing themselves as The Three Horsemen of the Apocalypse - what could possibly go wrong!! Declan couldn't resist the opportunity to invite three very eminent radiation oncologists into the studio when they all happened to be in Melbourne, even if he was particularly outnumbered while Renu was away! Vedang Murthy (Tata Memorial, India), Andrew Loblaw (Sunnybrook Hospital, Canada), and Sarat Chander (Peter Mac, Melbourne) are all highly specialised in prostate radiation, so Declan invited them into the GU Cast studio to pick their brains on three big areas in prostate radiation.

We poke around under the hood of a brand new Cyberknife facility here in Melbourne, the first on the East coast of Australia, and find out what it's all about. What is it for, who might benefit, and being surgeons we have to ask, why do they call it a "knife"?! Is it just to make it sound a bit like surgery - stay tuned to find out!