Knowledge–practice Gap in Radiation Safety During Repeat Pediatric Brain Ct Imaging: A Multicenter Survey of Healthcare Professionals in Saudi Arabia
This multicenter survey of Saudi healthcare professionals reveals a significant knowledge–practice gap in radiation safety during repeat pediatric brain CT imaging, characterized by moderate knowledge levels but poor protective behaviors, underscoring the urgent need for targeted training and decision-support tools to mitigate unnecessary radiation exposure.
Original paper licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). This is an AI-generated explanation of the paper below. It is not written or endorsed by the authors. For technical accuracy, refer to the original paper. Read full disclaimer
In modern medicine, the computed tomography scan, often called a CT, is a powerful tool that uses X-rays to create detailed, three-dimensional pictures of the inside of the body. It is fast and precise, making it invaluable for diagnosing injuries and illnesses, especially in children who cannot always describe their symptoms. However, this clarity comes with a cost: ionizing radiation. While a single scan delivers a small amount of radiation, children are uniquely vulnerable because their bodies are still growing and their cells divide rapidly, making them more sensitive to radiation damage than adults. Furthermore, because children have a longer life expectancy ahead of them, any damage caused by radiation has more time to develop into health problems, such as cancer, later in life. Medical experts agree that while the risk from one scan is low, repeated scans can add up to a significant dose, creating a cumulative burden that doctors strive to avoid whenever possible.
A team of researchers in Saudi Arabia set out to understand how well the people who order and perform these scans actually understand these risks and whether their daily actions match their knowledge. They focused on a specific problem: why do children sometimes get scanned more than once for the same issue? The researchers surveyed 136 healthcare professionals, including doctors, radiologists, and technicians, working at three major military hospitals in the country. These are the people who decide when a scan is needed, operate the machines, or interpret the results. The team asked them about their knowledge of radiation dangers, their attitudes toward safety, and their actual habits when it comes to ordering repeat scans for pediatric brain imaging.
The study revealed a clear disconnect between what these professionals know and what they do. On average, the healthcare workers demonstrated a moderate level of knowledge regarding the risks of radiation and held positive attitudes toward protecting patients. They generally understood that repeated scans could increase cancer risk and knew that alternatives like ultrasound or magnetic resonance imaging existed. However, when it came to their actual practices, the scores dropped significantly. Despite knowing the theory, many did not consistently follow the recommended safety steps to prevent unnecessary repeat imaging. The researchers found that knowledge alone was not enough to guarantee safe behavior; there was a gap where understanding did not translate into action.
When the team asked the participants why children ended up getting scanned a second time, the answers were practical rather than theoretical. The most common reasons were that the child moved during the first scan, ruining the picture, or that doctors needed a follow-up image to check if a treatment was working. While these are legitimate medical reasons, the study highlighted that the system lacked clear rules and support to help doctors decide when a repeat scan was truly necessary versus when it could be avoided. Many participants admitted they were not fully aware of their hospital's specific policies on approving repeat scans, suggesting that even when guidelines exist, they are not always communicated effectively to the staff who need them.
The researchers also looked at how different factors influenced the results. They found that professionals with more education and more years of experience tended to have better awareness of radiation safety. Those working directly in radiology departments knew more than those in other clinical areas. However, even among the most experienced staff, the gap between knowing the rules and following them remained. The data showed a link between having a positive attitude toward safety and actually practicing it, suggesting that if healthcare workers feel more strongly about the importance of protection, they are more likely to act on it.
Ultimately, the study concludes that while Saudi healthcare professionals are aware of the dangers of radiation, the system needs stronger support to turn that awareness into consistent, safe practice. The authors suggest that simply knowing the risks is not enough. To truly protect children, hospitals need to provide better training, create clear and accessible checklists for when a repeat scan is justified, and use computer tools that help doctors make safer decisions at the moment they order a test. Without these structural changes, the gap between knowledge and practice will likely continue, leaving children exposed to unnecessary radiation that could be avoided.
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