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National Trends in Pediatric CT Scans in South Korea: A Nationwide Cohort Study
Insights
Pediatric computed tomography (CT) scan use in South Korea rose annually by 4.4% between 2012 and 2017. Healthcare providers must weigh CT scan benefits against radiation risks in children.
Area of Science:
- Radiology
- Pediatric Imaging
- Public Health
Background:
- Computed tomography (CT) is a vital diagnostic tool in pediatric care.
- Understanding trends in pediatric CT utilization is crucial for managing radiation exposure.
- Nationwide data provides a comprehensive overview of imaging practices.
Purpose of the Study:
- To analyze the rates and annual trends of pediatric CT scan usage in South Korea.
- To identify demographic and anatomical patterns in pediatric CT examinations.
- To inform clinical practice regarding radiation safety in children.
Main Methods:
- Utilized a nationwide population-based database from South Korea's health insurance service (2012-2017).
- Extracted data on CT scan frequency, patient age, sex, diagnosis, and anatomical area.
- Calculated scan rates per 1000 children and analyzed annual percentage changes.
Main Results:
- Total pediatric CT scans increased by 23.2% (9.0 to 11.0 per 1000 children) from 2012-2017.
- Significant increases observed in 6-12 years (32.9%) and 13-18 years (34.0%) age groups.
- Head, extremities, and abdomen were the most common scan areas, with extremity scans showing an 83.6% increase.
Conclusions:
- Pediatric CT scan utilization demonstrated a consistent annual growth rate of 4.4% in South Korea.
- The rise in scans, particularly for extremities, necessitates careful consideration of radiation risks.
- Physicians must balance the diagnostic advantages of CT scans with potential radiation-related harms in pediatric patients.
Purpose:
This study evaluated the rates and annual trends of pediatric CT scans in South Korea using a nationwide population-based database.
Materials And Methods:
Data regarding pediatric CT scan usage between 2012 and 2017 were retrieved from the health insurance review and assessment service. Data on the age, sex, diagnosis, and the anatomical area of involved patients were also extracted.
Results:
A total of 576376 CT examinations were performed among 58527528 children aged below 18 years (9.8 scans/1000 children), and the number of CT examinations per 1000 children was noted to have increased by 23.2% from 9.0 in 2012 to 11.0 in 2017. Specifically, the number of CT examinations increased by 32.9% for the 6-12 years of age group (7.4/1000 to 9.8/1000) and by 34.0% for the 13-18 years of age group (11.4/1000 to 15.3/1000). Moreover, majority of the CT scans were limited to the head (39.1%), followed by the extremities (32.5%) and the abdomen (13.7%). Notably, the number of extremity CT scans increased by 83.6% (2.3/1000 to 4.2/1000), and its proportion as compared to other scans increased from 25.3% to 37.7%.
Conclusion:
CT scans in the pediatric population increased continuously from 2012 to 2017 at an annual rate of 4.4%. Therefore, physicians should balance the benefits of CT with its potential harms from associated radiation exposure in pediatric patients.
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