Does Orally-Administered Radiocontrast Impair Ultrasound Image Quality in Pediatric Patients?

Area of Science:

• Pediatric Emergency Medicine
• Radiology
• Diagnostic Imaging

Background:

• Orally-administered radiocontrast material (ORC) is often delayed before abdominal ultrasound (US) due to concerns about image quality.
• This delay can prolong emergency department (ED) stays for pediatric patients with abdominal pain.
• Evaluating the impact of early ORC on US diagnostic accuracy is crucial.

Purpose of the Study:

• To assess if early oral radiocontrast material (ORC) administration affects abdominal ultrasound (US) image quality in children with abdominal pain.
• To determine if ORC obscures key anatomical structures for appendicitis evaluation.

Main Methods:

• Prospective observational study in a pediatric ED.
• 17 children (<18 years) with abdominal pain received point-of-care ultrasound (POCUS) pre- and post-ORC.
• Blinded, US-certified physicians assessed image quality of the abdominal aorta and right lower quadrant (RLQ).

Main Results:

• No significant difference in POCUS image quality scores for RLQ structures or abdominal aorta.
• Image quality was comparable whether assessed before or after ORC administration.
• 17 subjects completed both pre- and post-ORC POCUS evaluations.

Conclusions:

• Early ORC administration does not negatively impact abdominal US image quality in pediatric patients.
• ORC can be administered before US in children requiring CT for abdominal pain.
• This practice may reduce ED length of stay without compromising US diagnostic accuracy.