Sonographic appearance of the normal appendix in children

Area of Science:

• Pediatric Radiology
• Diagnostic Imaging
• Gastrointestinal Imaging

Background:

• The appendix is a common source of abdominal pain in children.
• Accurate visualization of the normal appendix via ultrasound (US) is crucial for ruling out appendicitis.
• Factors influencing appendix visualization in pediatric patients require further investigation.

Purpose of the Study:

• To determine the visualization rate of the normal appendix in children using ultrasound.
• To identify patient-specific factors (age, weight, height) that affect appendix visualization.

Main Methods:

• A prospective study of 205 children without clinical signs of appendicitis was conducted.
• Ultrasound (US) was used to visualize the appendix, measuring its diameter and assessing lumen content and vascularity.
• Pearson correlation and Student's t-test were employed to analyze the relationship between appendix visualization and patient demographics.

Main Results:

• The appendix was visualized in 69.3% of the pediatric patients studied.
• No correlation was found between appendix diameter and patient age, weight, or height.
• Children with a visualized appendix were significantly younger, lighter, and shorter than those with a nonvisualized appendix (p < 0.05).

Conclusions:

• Ultrasound is effective in visualizing the normal appendix in a majority of children.
• Patient age, weight, and height are significant factors influencing the visualization rate of the normal appendix.