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Nuclear Medicine(Gamma Knife RadioSurgery)

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on 2 June 2015

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Transcript of Nuclear Medicine(Gamma Knife RadioSurgery)

Nuclear Medicine(Gamma Knife RadioSurgery)
What is Nuclear Chemistry?
Nuclear medicine is a branch of medical imaging that uses small amounts of radioactive material to diagnose and determine the severity of or treat a variety of diseases,including many types of abnormalities.
What is the advantage of Nuclear Medicine?
Because nuclear medicine procedures are able to pinpoint molecular activity within the body, they offer the potential to identify disease in its earliest stages as well as a patient’s immediate response to therapeutic interventions.
Gamma Knife Radiosurgery
Gamma Knife radiosurgery, also called stereotactic radiosurgery, is a very precise form of therapeutic radiology. It uses beams of highly-focused gamma rays to treat small to medium size lesions, usually in the brain. Many beams of gamma radiation join to focus on the lesion.
Is this a Fission of Fusion Reaction?
It provides a very intense dose of radiation without a surgical incision or opening.
It is fission because the gamma is closing to strike the brain making it stable.
Cobalt-60
Gamma Decay Equation
60Co -> 60Ni + e- + energy
Gamma Ray Strength
Before the procedure the a medical physicist will determine the best dose of radiation. The person will stay awake and remain awake throughout the procedure.
Gamma cameras do not hurt, nor do they make any noise that might frighten patients.
Gamma Ray Stregth cont.
In Gamma Knife radiosurgery, specialized equipment focuses close to 200 tiny beams of radiation on a tumor or other target. Although each beam has very little effect on the brain tissue it passes through, a strong dose of radiation is delivered to the site where all the beams meet.
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