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Imaging evaluation of suspected appendicitis in a pediatric population: effectiveness of sonography versus CT
C J Sivit1, K E Applegate, A Stallion
1Department of Radiology, Rainbow Babies and Children's Hospital, University Hospitals of Cleveland and Case Western Reserve School of Medicine, 11100 Euclid Ave., Cleveland, OH 44106-5056, USA.
Insights
Helical CT demonstrated superior diagnostic accuracy and sensitivity for appendicitis in pediatric and young adult patients compared to graded compression sonography. CT is particularly effective in diagnosing appendicitis in children over 10 years old.
Area of Science:
- Radiology
- Pediatric Imaging
- Abdominal Imaging
Background:
- Appendicitis diagnosis in pediatric and young adult populations presents challenges.
- Accurate imaging is crucial for timely intervention and improved patient outcomes.
Purpose of the Study:
- To compare the diagnostic accuracy of graded compression sonography (GCS) and helical computed tomography (CT) for appendicitis in pediatric and young adult patients.
- To evaluate the sensitivity and specificity of both imaging modalities.
Main Methods:
- A prospective study involving 386 pediatric and young adult patients with suspected appendicitis.
- Patients underwent sonography, CT, or both.
- Imaging findings were correlated with surgical and histopathologic results or clinical follow-up.
Main Results:
- Helical CT showed significantly higher sensitivity (95% vs. 78%) and accuracy (94% vs. 89%) than GCS for appendicitis diagnosis.
- Both techniques had a specificity of 93%.
- CT was more accurate in cases with discordant findings between sonography and CT.
Conclusions:
- Helical CT is a more sensitive and accurate imaging modality than GCS for diagnosing appendicitis in pediatric and young adult patients.
- The diagnostic advantage of helical CT is particularly notable in children over 10 years of age.
Objective:
The purpose of this study was to compare the diagnostic accuracy of graded compression sonography with that of helical CT for the diagnosis of appendicitis in a pediatric and young adult population.
Subjects And Methods:
Between June 1996 and April 1999, 386 pediatric and young adult patients with suspected appendicitis were examined using sonography, CT, or both: 233 underwent sonography only, 71 underwent CT only, and 82 underwent sonography and CT. All sonograms and CT scans were prospectively interpreted as showing positive or negative findings for appendicitis by one of six pediatric radiologists. CT and sonographic findings were correlated with surgical and histopathologic findings or findings at clinical follow-up.
Results:
Helical CT had a significantly higher sensitivity (95% versus 78%, p = 0.009) and accuracy (94% versus 89%, p = 0.05) than graded compression sonography for the diagnosis of appendicitis in children, adolescents, and young adults. The specificity of both techniques was 93%. Twenty of 82 patients who underwent both sonography and CT had discordance between the findings of the two examinations. The CT results were correct in a significantly greater number of patients with discordant examinations (17/20 patients [85%]).
Conclusion:
Helical CT has a significantly higher sensitivity and accuracy than graded compression sonography for the diagnosis of appendicitis in a pediatric and young adult population, particularly in children more than 10 years old.
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