With reference to the treatment of cancerous tumours, a tool called cyberknife has been making the news. In this context, which one of the following statements is not correct?
|A|| It is a robotic image guided system|
|B|| It delivers an exteremely precise dose of radiation|
|C|| It has the capability of achieving sub-millimetre accuracy|
|D|| It can map the spread of tumour in the body|
Ans. D Exp: In cyberknife, radiation source is mounted on a industrial robot. The image guidance system is composed of the X-ray imaging cameras located on supports around the patient allowing instantaneous X-ray images to be obtained. Mounted on the Robot is a compact X-band linac that produces 6MV X-ray radiation. Mounting the radiation source on the robot allows complete freedom to position the radiation within a space about the patient. Cyberknife is a non invasive, sub millimetre accurate cancer treatment that can treat most cancers without the need for surgery of nasty drugs and has no side effects. The treatment–which delivers beams of high dose radiation to tumors with extreme accuracy – offers new hope to patients worldwide. One must have a high resolution CT scan and a PET scan of your lung so that the computer can use the information to “map” the location of the tumor. Correct mapping is essential to radiosurgery.