Emergent pediatric US: what every radiologist should know.

Area of Science:

• Pediatric Radiology
• Abdominal Imaging
• Medical Diagnostics

Background:

• Appendicitis, intussusception, and hypertrophic pyloric stenosis (HPS) are frequent pediatric emergencies requiring abdominal imaging.
• Computed tomography (CT) use has increased, but carries risks of ionizing radiation exposure in children, increasing cancer risk.
• Magnetic resonance (MR) imaging is often impractical for pediatric abdominal pain due to cost, availability, and sedation needs.

Purpose of the Study:

• To highlight the benefits of ultrasonography (US) as a primary imaging modality for pediatric abdominal emergencies.
• To emphasize the advantages of US over CT and MR imaging in the pediatric population.
• To advocate for the integration of US skills in pediatric radiology practices.

Main Methods:

• Review of common pediatric abdominal conditions necessitating emergent imaging.
• Comparison of imaging modalities: ultrasonography (US), computed tomography (CT), and magnetic resonance (MR) imaging.
• Analysis of radiation exposure, cost, availability, and patient factors (e.g., sedation) for each modality.

Main Results:

• Ultrasonography (US) offers a radiation-free alternative to CT for pediatric abdominal imaging.
• US is more accessible, less expensive, and does not require sedation compared to MR imaging.
• US provides dynamic assessment of bowel peristalsis and compressibility, crucial for diagnosing conditions like appendicitis and intussusception.

Conclusions:

• Ultrasonography (US) is a safe, effective, and practical primary imaging modality for common pediatric abdominal emergencies.
• The benefits of US, including no ionizing radiation and dynamic assessment capabilities, make it superior to CT and MR in many pediatric cases.
• Proficiency in US for diagnosing conditions such as appendicitis, intussusception, and HPS should be a core skill for pediatric radiologists.