Nuclear Medicine

2622 WordsMar 25, 201111 Pages
Nuclear Medicine Nuclear medicine has been around for more than 50 years now and stems from the discovery of x-rays and artificial radioactivity. In 1946, nuclear medicine made a monumental breakthrough when radioactive iodine led to the complete disappearance of cancer in a patient’s thyroid. Nuclear medicine became widely used in the 1950’s to measure the function of the thyroid, to diagnose thyroid disease, and for the treatment of patients with hyperthyroidism. By the 1970’s nuclear medicine was used to visualize other organs of the body other than the thyroid such as scanning of the liver and spleen, localizing brain tumors, and images of the gastrointestinal track. The use of digital computers and detection of heart disease arose in…show more content…
This table shows the common risks that people face in everyday life compared to that individual dying from taking that risk. These figures were taken from "Living with Risk", published by the British Medical Association, 1987. ACTIVITY RISK OF AN INDIVIDUAL DYING IN ANY ONE YEAR Smoking 10 cigarettes a day 1 in 200 Influenza 1 in 500 Natural causes, 40 years old 1 in 850 Road Accident 1 in 8,000 Playing Soccer 1 in 25,000 Accident at Home 1 in 26,000 Accident at Work 1 in 43,500 Hit by Lightning 1 in 10,000,000 Release of radiation from a nearby Power Station 1 in 10,000,000 Radiation Exposure at the rate of: * Theoretical worst case figures * 5 mSv per year 1 in 16,000 50 mSv per year 1 in 1,600 OCCUPATION Deep Sea Fishing (sea accidents before 1970) 1 in 360 Offshore Oil and Gas Industry 1 in 600 Quarrying 1 in 3,000 Coal Mining 1 in 5,000 Railways 1 in 6,000 Construction Industry 1 in 7,000 Agriculture 1 in 9,000 Chemical and Allied Industries 1 in 12,000 Motor Vehicle manufacture 1 in 70,000 Clothing and Footwear manufacture 1 in 200,000 Timber and Furniture manufacture 1 in 250,000 (http://www.petnm.unimelb.edu.au/nucmed/detail/risks.html) “A millisievert (mSV) is a unit of measure that allows for some comparison between radiation sources that expose the entire body (such as natural background radiation) and those that only expose a portion of the body (such as radiographs).”
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