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Self-localization in US of appendicitis: an addition to graded compression
R M Chesbrough1, T K Burkhard, Z N Balsara
1Department of Radiology, Naval Hospital, San Diego, CA 92134-5000.
Radiology
|May 1, 1993
Summary
Adding a "sonographic self-localization sign" to ultrasound (US) for acute appendicitis expedited examinations. Patients who could pinpoint pain during US were more likely to have appendicitis, improving diagnostic accuracy.
Area of Science:
- Radiology
- Medical Imaging
- Gastroenterology
Background:
- Graded-compression ultrasound (US) is crucial for diagnosing acute appendicitis.
- Standard US examinations can be time-consuming.
- Improving diagnostic speed and accuracy is essential for patient care.
Purpose of the Study:
- To evaluate the efficacy of a "sonographic self-localization sign" in expediting appendicitis diagnosis.
- To assess the accuracy of patient pain self-localization during ultrasound.
- To determine if this sign improves diagnostic accuracy for acute appendicitis.
Main Methods:
- A total of 236 patients with suspected appendicitis underwent graded-compression US.
- A "sonographic self-localization sign" was incorporated, where patients identified their maximal pain area.
- Results were correlated with confirmed diagnoses.
Main Results:
- Eighty-five percent of patients with confirmed appendicitis self-localized pain.
- Eighty-eight percent of patients with significant right lower quadrant (RLQ) disease self-localized pain, with 86% accuracy.
- Only 15% of patients without significant disease self-localized pain.
Conclusions:
- The "sonographic self-localization sign" is a valuable addition to standard US for acute appendicitis.
- This method reduces examination time and enhances diagnostic accuracy.
- Patient-guided pain localization improves the efficiency of RLQ ultrasound evaluations.