Clin Exp Emerg Med.
2018 Mar;5(1):35-42. 10.15441/ceem.16.192.
Long-term changes in computed tomography and ultrasound utilization in a pediatric emergency department
- Affiliations
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- 1Department of Emergency Medicine, Seoul National University Hospital, Seoul, Korea.
- 2Department of Emergency Medicine, Seoul National University Bundang Hospital, Seongnam, Korea. matewoos@gmail.com
- 3Department of Emergency Medicine, SMG-SNU Boramae Medical Center, Seoul, Korea.
- KMID: 2409817
- DOI: http://doi.org/10.15441/ceem.16.192
Abstract
OBJECTIVE
Many studies have proposed reducing unnecessary use of computed tomography (CT), and ongoing studies in pediatric populations are aiming to decrease radiation dosages whenever possible. We aimed to evaluate the long-term changes in the utilization patterns of CT and ultrasound (US) in pediatric emergency departments (PEDs).
METHODS
This retrospective study reviewed the electronic medical data of patients who underwent CT and/or US in the PED of a tertiary referral hospital from 2000 to 2014. We compared the changes in utilization patterns of brain and abdominal CT scans in pediatric patients and analyzed changes in abdominal US utilization in the PED.
RESULTS
During the study period, 196,371 patients visited the PED. A total of 12,996 brain and abdominal CT scans and 12,424 abdominal US were performed in the PED. Comparison of CT use in pediatric patients before and after 2007 showed statistically decreasing trends after 2007, expressed as the coefficient values of the differences in groups. The numbers of brain and abdominal CT scans showed a significant decreasing trend in children, except for abdominal CT in adolescents. The abdominal US/CT ratio in the PED showed a statistically significant increase (2.68; 95% confidence interval, 1.87 to 3.49) except for the adolescent group (5.82; 95% confidence interval, -2.06 to 13.69).
CONCLUSION
Overall, CT use in pediatric patients has decreased since 2007. Pediatric US use has also shown a decreasing trend; however, the abdominal US/CT ratio in pediatric patients showed an increasing trend, except for adolescents.
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