accidents that lead to enormous radiation overdoses for the patients. One of the major innovations of the Therac-25 was the move to complete computer control‚ which allowed operators to set up the machines more quickly‚ so they could focus more on the patients. Altogether‚ eleven Therac-25 units were installed. The Therac-25 had two modes of operation: • Direct electron-beam therapy - a low power electron beam is directly administered (5 MeV - 25 MeV) • Megavolt X-Ray therapy - the high-energy electron
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Cobalt 60 Mode of decay: Beta particles and gamma radiation Chemical properties: Metallic solid that can become magnetically charged What is it used for? Co-60 is used medically for radiation therapy as implants and as an external source of radiation exposure. It is used industrially in leveling gauges and to x-ray welding seams and other structural elements to detect flaws. Co-60 also is used for food irradiation (http://www.cdc.gov/ncidod/dbmd/diseaseinfo/ foodirradiation.htm)‚ a sterilization
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The cancer i chose to write about was bladder cancer. I’m not really sure why i chose this cancer but i find it cool that you can get cancer in all different places. Nobody knows the main cause of bladder cancer. Some things that may cause cancer is chronic bladder inflammation‚ chemical exposure or smoking. I find it very weird that smoking could affect your bladder or even drinking caffeine can. Cystoscopy is the main diagnostic test for bladder cancer‚ you can also get a bladder biopsy which
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Pheochromocytoma It is usually benign; Pheochromocytoma is a well-encapsulated‚ lobular‚ vascular tumor that can weigh less than 70 g‚ to 3600 g. It is made up of chromaffin tissue of the adrenal medulla or sympathetic par ganglia. The most apparent symptom‚ reflecting the increased secretion of epinephrine and norepinephrine‚ is hypertension‚ which may be persistent or intermittent. Attacks may occur every few months or several times daily and typically last less than five minutes. Physical and
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rhinoplasty in order to avert the potential risks of rejection. If your surgeon has removed cartilage during the cancer treatment surgery‚ a cartilage graft is required for reshaping the nose. (ii) In case a patient has developed a scar tissue during the therapy‚ then advanced treatment methods (such as dermabrasion or laser resurfacing) may be used to address the address the condition. (iii) If a patient’s nose is disfigured during the cancer treatment‚ often cosmetic or reconstructive (or a combination
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The surgery is followed up with RAI to completely eliminate metastasized thyroid cancer cells that remain within the patient’s body. External beam radiation is also used to treat or prevent the growth of follicular and Hurthle cell cancers in the neck area. Medullary Thyroid Cancer The third most common thyroid cancer type‚ medullary thyroid cancer‚ makes up about 5% to 10% of thyroid cancer cases.
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What is cancer? Cancer is a disease in which an abnormal cell divides uncontrollably and destroy the body’s tissues. “1 out 2 men will get cancer in their lifetime‚ 1 out of 2.7 women will get cancer in their lifetime” according to the article When someone has cancer‚ by the American Cancer Association. Many people are unaware the great epidemic that cancer has now become. There is a myth with cancer that is it not hereditary‚ many do not accept the truth behind cancer. The important concept that
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Root Operations and Approaches Tool Section 0 Alteration 0 Bypass Medical and Surgical Definition: Explanation: Examples: Definition: Explanation: 1 Examples: 2 3 4 Change Control Creation 5 Destruction 6 Detachment Dilation 7 8 9 B Division Drainage Excision Extirpation F G H Explanation: Examples: Definition: Explanation: Examples: Definition: Explanation: Examples: Definition: Explanation: Examples: Definition:
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about different variations of treatments‚ those in which have helped millions combat diseases. It uses radiation to administer information about the functioning of a person’s organs or to treat diseases. It detects early signs in the tissue. Nuclear medicine procedures are very safe and do not require anesthesia. A small dose of radiopharmaceuticals is introduced into the body with low radiation and still provide a definite medical evaluation. That is why it has been around for so long. It is important
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CELLULAR RESPONSE TO IONIZING RADIATION The efficacy of diagnostic imaging resembles a double-edged sword in the medical industry. A radiographer trained to image a patient correctly must use all knowledge to keep the radiation level at its lowest and safest level to produce the best quality image possible. However‚ the radiation level still has an effect on the patient that can go unseen by the naked eye. Ionizing radiation produced by x-ray‚ gamma rays‚ alpha & beta rays‚ can have an effect
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