An article published on July 31, 2010 in the New York Times revealed that during the past year over 400 patients nationwide have received a higher-than-expected dose of radiation during a specific CT scan, called a CT brain perfusion scan, which has led to hair loss in a circular pattern around the head, headaches, memory loss, and confusion.
This article comes after the federal Food and Drug Administration (FDA) announcement in April 2010 that it was taking steps to reduce overdoses and other errors in radiation therapy by strengthening the approval process for new radiotherapy equipment. The FDA announcement followed several other reports and studies during the last 10 months that have shed light on the prevalence of radiation overexposure during various types of CT scans. Such overexposure can lead to an increased risk of certain cancers and brain tumors in addition to other symptoms of radiation exposure such as hair loss, erythema, nausea, vomiting, headache, fatigue, weakness, and fever.
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