TY - CHAP M1 - Book, Section TI - Imaging A1 - Matsuno, Wendy C. A2 - Schafermeyer, Robert A2 - Tenenbein, Milton A2 - Macias, Charles G. A2 - Sharieff, Ghazala Q. A2 - Yamamoto, Loren G. Y1 - 2014 N1 - T2 - Strange and Schafermeyer's Pediatric Emergency Medicine, 4e AB - Ultrasonography is the imaging technique of choice for confirmation of pyloric stenosis, testicular torsion, ectopic pregnancy, ovarian torsion, and appendicitis.High clinical suspicion for testicular torsion or ovarian torsion should not be ignored when not confirmed by ultrasonography. Sensitivity and specificity are limited.Successful diagnosis with ultrasonography may be limited in obese children.Computed tomography (CT) is an extremely valuable imaging tool, but the risk of ionizing radiation exposure should be considered when ordering this test in young children.Magnetic resonance imaging (MRI) in the emergency department (ED) is usually reserved for emergent conditions such as cord compression and stroke. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/11/12 UR - accessemergencymedicine.mhmedical.com/content.aspx?aid=1105680427 ER -