They can cause severe damage to organs if ingested, inhaled or absorbed. Lower immediate posttreatment morbidity and mortality. Iodine-123 (123 I) is a radioactive isotope of iodine used in nuclear medicine imaging, including single photon emission computed tomography (SPECT) or SPECT/CT exams. Doctors aim focused beams of radiation, including gamma rays, at tumours. When gamma rays pass through the human body, they ionize the tissue. His articles and op-ed pieces have appeared in the "South Florida Sun Sentinel," "St Paul Pioneer Press," "Detroit Free Press," "Charlotte Observer," âGood Medicine,â and others. The incredibly high-energy photons can ionise atoms they come in contact with. However, according to the Environmental Literacy Council, ionized radiation that occurs from … Conformal radiation therapy limits radiation exposure to nearby healthy tissue as well as the tissue in the beam's path. Radiation: Three types of radiation kill microbes: 1. Based on the Word Net lexical database for the English Language. Radiation Therapy Advantages And Disadvantages 724 Words | 3 Pages. Start studying Radiology - Nuclear Medicine and MRINuclear. X-rays, gamma rays, and other forms of ionizing radiation offer an effective way to treat certain kinds of cancer. Radiation sterilization relies on Large doses could cause death. Decreased cost. The high-energy radiation either directly damages the DNA of the cancer cells or creates highly reactive free radicals that in turn damage the DNA of the cancer cells, killing them. Commercial radiation sterilization has existed since the late 1950s and has grown tremendously in popularity over the last 60 years. Today, the Enzyme-linked Immunosorbent Assay (ELISA) is a well-established method. 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 cancers, heart disease, gastrointestinal, endocrine, neurological disorders and other abnormalities within the body. The first gamma-ray telescope was carried into orbit on the Explorer XI satellite in 1961. Advantages And Disadvantages Of Radiation 732 Words | 3 Pages. Scientists have harnessed gamma waves for such purposes as killing cancer cells and understanding the universe, but they can be very dangerous tools. Gamma Camera and SPECT. He studied molecular biology at Westchester University and frequently writes about science and mathematics. MRIs and CT scans can show far more bone detail than X-rays. That's why cancer patients undergoing radiation therapy get sick. About 440 million years ago, about 70 per cent of all marine species disappeared in a massive extinction, and scientists think a gamma burst may have been responsible. Gamma rays are the most powerful forms of radiation because they can penetrate skin, wood, paper and other matter. When small amounts of radiation is applied, you will experience some sort of sickness and the cells would multiply over a long period of time, but would still be mutated and cause cancer. Advantages of gamma rays compared with X-rays. Charley Gallay/Getty Images Entertainment/Getty Images. 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