Diagnostic performance of standardized ultrasound protocol for detecting perforation in pediatric appendicitis.

Background: Recent clinical trials in adults and children have shown that uncomplicated acute appendicitis can be successfully treated with antibiotics alone. As treatment strategies for acute appendicitis diverge, accurate preoperative diagnosis of complicated appendicitis and appendiceal perforation has become increasingly important for clinical decision-making.

Objective: To examine diagnostic performance of ultrasound for detecting perforated appendicitis in a single institution using a standardized technique.

Integration of imaging signs into RadLex.

Imaging signs form an important part of the language of radiology, but are not represented in established lexicons. We sought to incorporate imaging signs into RSNA's RadLex® ontology of radiology terms. Names of imaging signs and their definitions were culled from books, journal articles, dictionaries, and biomedical web sites.