New concepts in imaging of the gastrointestinal tract in children.

This article highlights some of the significant recent advances in imaging of the pediatric gastrointestinal tract that have occurred over the last decade. The current roles of the newer imaging modalities, including ultrasound, computed tomography, and magnetic resonance imaging, are discussed and illustrated. Particular emphasis is given to antenatal evaluation, suspected gastric outlet obstruction, inflammation, and other causes of the acute abdomen. Enhancements in fluoroscopic techniques are outlined, including the use of the newer contrast agents as well as air reduction of intussusception. Continued good communication between the pediatric radiologist and pediatric surgeon is vital to improve the care to children with disorders of the gastrointestinal tract.