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CT scans could cause 5% of cancers, study finds; experts note uncertainty
The estimates are small and uncertain, but balancing risks and benefits is critical.
The study's authors—led by epidemiology and biostatistics researchers at the University of California, San Francisco—concluded that doctors should use CT scans when they can be justified and at optimized doses to balance the risks and benefits. Doreen Lau, a cancer biology expert at Brunel University of London, agreed: "The findings don’t mean that people should avoid CT scans when recommended by a doctor. But, "educating clinicians about avoiding low-value testing and, in circumstances where alternatives are readily available, involving patients in the decision to do a CT scan may help shift culture and practice."
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