Pediatric gastrointestinal nuclear imaging.

Scintigraphy is an excellent choice for physiologic imaging of the GI tract in pediatric patients. In many instances it provides adequate anatomic information and additional functional data with lower radiation exposure to the patient than possible with fluoroscopic evaluation (GER and gastric emptying), with invasive cholangiography (neonatal jaundice), or with angiography (GI bleeding studies). In other instances, scintigraphy provides complimentary information that, when combined with other imaging modalities, leads to a definitive diagnosis.