Ultrasound in Pediatric Emergencies

Gaurav Saigal, MD, Jennifer Runco Therrien, MD, and Frank Kuo, BS

Disclosures

Appl Radiol. 2014;43(8) 

In This Article

Foreign Bodies

A high-frequency linear transducer is used for the localization of foreign bodies.[41] Usually, a "stand-off pad" is used for better sound transmission and an improved view of the underlying soft tissues. Foreign bodies usually appear hyperechoic in relation to the surrounding soft tissues.[41] Material such as wood or plastic tends to produce shadowing, whereas metallic objects produce reverberation or a "comet-tail" artifact.[42,43] Color Doppler can be utilized to ensure that there are no vascular structures adjacent to the foreign body.[43]

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