A recent study published in JAMA Internal Medicine has raised concerns about the potential cancer risks associated with the widespread use of computed tomography (CT) scans.
The research indicates that in 2023, approximately 93 million CT scans were performed in the United States, potentially contributing to up to 100,000 new cancer cases, including nearly 10,000 among children.
CT scans utilize ionizing radiation to generate detailed images of the body’s internal structures. While invaluable for diagnosing various medical conditions, the radiation exposure from these scans can damage DNA, potentially leading to cancer. The study emphasizes that, although the individual risk from a single CT scan is relatively low, the cumulative effect across millions of scans poses a significant public health concern.
Children are particularly vulnerable to radiation-induced cancers due to their developing tissues and longer life expectancy. A separate study highlighted that children exposed to four or more CT scans before the age of 18 had a significantly increased risk of developing certain cancers, including a ninefold increase in intracranial tumors.
Experts advocate for the judicious use of CT scans, recommending that they be performed only when clinically necessary and when the benefits outweigh the risks. Alternative imaging methods, such as magnetic resonance imaging (MRI), which do not involve ionizing radiation, should be considered, especially for younger patients.
The American College of Radiology (ACR) supports the “as low as reasonably achievable” (ALARA) principle, urging healthcare providers to minimize radiation exposure during imaging procedures. The ACR also emphasizes the importance of adhering to established guidelines to ensure that imaging exams are appropriately prescribed and conducted.
As the medical community continues to balance the diagnostic benefits of CT scans with potential long-term risks, ongoing research and adherence to best practices remain crucial in safeguarding patient health.
Disclaimer: This article is intended for informational purposes only and should not be construed as medical advice. Always consult a qualified healthcare professional before making any decisions regarding medical imaging or treatment. The information presented is based on the latest available research at the time of writing and may be subject to change as new data emerges.
