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Updated: Aug 3, 2026

A Modified Sonographic Algorithm for Image Acquisition in Life-Threatening Emergencies in the Critically Ill Newborn
Published on: April 7, 2023
Sonography of acute appendicitis in children: 7 years experience
H B Hahn1, F U Hoepner, T Kalle
1Department of Paediatric Radiology, Kinderklinik, Technischen Universität, München, Germany.
Insights
High-resolution graded compression sonography accurately diagnoses appendicitis in children, with 96% overall accuracy. Clinical decisions for surgery are still necessary due to occasional false results.
Area of Science:
- Pediatric Radiology
- Abdominal Imaging
- Diagnostic Ultrasound
Background:
- Appendicitis is a common surgical emergency in children.
- Accurate diagnosis is crucial to avoid unnecessary surgery and complications.
- Graded compression sonography is a widely used imaging modality.
Purpose of the Study:
- To evaluate the diagnostic accuracy of high-resolution graded compression sonography for appendicitis in pediatric patients.
- To correlate sonographic findings with surgical and histopathological outcomes.
Main Methods:
- Prospective study of 3859 children with suspected appendicitis over 7 years.
- High-resolution graded compression ultrasound technique was employed.
- Sonographic results were compared with intraoperative findings, histopathology, or clinical follow-up.
Main Results:
- Sonography demonstrated 90% sensitivity, 97% specificity, and 96% overall accuracy in diagnosing appendicitis.
- Of 610 patients undergoing laparotomy, 494 had confirmed appendicitis (13% prevalence).
- Analysis of false-negative and false-positive cases was performed.
Conclusions:
- High-resolution graded compression sonography offers excellent diagnostic performance for pediatric appendicitis.
- Despite high accuracy, clinical judgment remains essential for surgical decisions due to persistent false positives and negatives.
Objective:
The objective of this prospective study was to determine the accuracy in diagnosing appendicitis in children by using high-resolution graded compression sonography.
Materials And Methods:
During a 7-year period, 3859 children (mean age 9.9 years) with clinically suspected appendicitis were evaluated by sonography with the graded compression technique. The ultrasound results were correlated with the intraoperative and histopathological findings or clinical outcome.
Results:
High-resolution sonography was performed in 3859 children. Of the 610 patients who underwent a laparotomy, 494 had histologically proven acute or perforated appendicitis (prevalence 13%). In these children, sensitivity, specificity and overall accuracy of sonography were 90%, 97% and 96%, respectively. The reasons for false-negative and false-positive results are discussed.
Conclusion:
Although the use of ultrasound to diagnose acute appendicitis in children has excellent results, the decision for surgery remains a clinical one because of the continuing false-negative and false-positive results from sonography.
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