Gamma Knife® is a major advance in the field of stereotactic radiosurgery for certain brain cancer patients. It offers a non-invasive procedure that can be performed in one session and with extreme precision.

Here's what you should know.

The Gamma Knife is a 30-ton machine that contains a cylindrical cone made of the world's largest piece of tungsten with lead shielding. The machine has 192 Cobalt-...