Laura Landro, at The Wall Street Journal, writes in an article entitled “Radiation Risks Prompt Push to Curb CT Scans” that CT scans may elevate the risk of cancer. According to the article, a third or more of scans may be unnecessary.
A sidebar to the article lists exposure levels from various procedures in millirems of radiation:
Dental X-ray————————————2
Chest X-ray————————————-10
Mammogram————————————70
CT spine——————————————-600
CT pelvis (multiple exposures)———1000
Angioplasty————————————–750 – 5700
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