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Article:
Let's Start Screening For Breast Health by: Brenda Witt In the United States, American women are told to begin annual mammographic screening for breast cancer at the age of 40. Long before we've reached this age, we are advised to perform a monthly breast exam and see our doctors for a clinical breast exam (CBE) annually as well. However, the detection rate of breast cancer for CBE is only 47% when the tumors are less than 1 centimeter while mammography has given us a 70% detection rate. By the time a tumor is detected by palpation or found mammographically, it has already been growing and developing for 8-10 years. Mammography has a high false positive rate. Only 1:6 biopsies are found to be positive for cancer when performed due to a positive mammogram or CBE. This places additional stressors on women who undergo these procedures. Other risks of mammography include the radiation that each breast is exposed to during a mammogram. During a chest X-ray, a person receives 1/1000 of a RAD, or radiation absorbed dose. This type of X-ray is a high energy X-ray. During a mammogram, however, the X-ray used is a low energy X-ray and results in 1 RAD or a 1000-fold greater exposure than a simple chest X-ray. It has been suggested that the low energy X-ray used may cause greater biological damage which is cumulative over time. In a journal entitled Radiation Research and published in '2004
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