The report found cancer risk grew with each scan received, and there was an elevated risk even in those who received only one CT, formerly called a CAT scan.
以前的研究提出了对于CT扫描增加致癌风险的担忧;这份报告则提出了第一个关于这种联系强度的直接证据。它研究了英国国民健康服务(National Health Service)对22岁前接受过一次CT扫描的病人记录,并考察了他们平均10年后的病史。
Previous studies raised concerns about cancer risk from the scans; this report offers the first direct evidence of the magnitude of the link. It examined the U.K.'s National Health Service records of patients who had received a CT before age 22 and looked at their medical history for an average of 10 years afterward.
纽卡斯尔大学(Newcastle University)名誉主席、该论文的作者之一艾伦•克拉夫特(Alan Craft)称,"这篇论文证实,辐射,即使是相对低剂量的辐射,也会导致"罹患特定癌症的"风险。没有安全剂量。"
"This paper confirms that radiation, even in relatively low doses, does lead to risk' of certain cancers, said Alan Craft, emeritus chair at Newcastle University and an author of the paper. 'There is no safe dose."
增加的风险意味着,每10,000个做过CT扫描的10岁以下的病人,在第一次做CT扫描10年后患白血病的病例将多出一例,或者每30,000个做过CT扫描的10岁以下的病人,在第一次做CT扫描10年后患脑癌的病例将多出一例。
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