MRI for clinically suspected pediatric appendicitis: case interpretation.

As utilization of MRI for clinically suspected pediatric appendicitis becomes more common, there will be increased focus on case interpretation. The purpose of this pictorial essay is to share our institution's case interpretation experience. MRI findings of appendicitis include appendicoliths, tip appendicitis, intraluminal fluid-debris level, pitfalls of size measurements, and complications including abscesses.

MRI for clinically suspected pediatric appendicitis: an implemented program.

Background: Emergent MRI is now a viable alternative to CT for evaluating appendicitis while avoiding the detrimental effects of ionizing radiation. However, primary employment of MRI in the setting of clinically suspected pediatric appendicitis has remained significantly underutilized.

Objective: To describe our institution's development and the results of a fully implemented clinical program using MRI as the primary imaging evaluation for children with suspected appendicitis.

Intradiaphragmatic extralobar sequestration-a rare pulmonary anomaly.

Extralobar pulmonary sequestrations are most commonly found within the thoracic cavity, but have been described within the abdomen. We present the case of a 16-month-old boy with an intradiaphragmatic pulmonary sequestration and demonstrate a computed tomographic scan finding that might help identify this extremely rare abnormality preoperatively.

Radiation dose from DXA scanning to reproductive tissues of females.

The objective of this study was to use an anatomically arrayed whole-body phantom to measure radiation exposure to the ovaries and uterus during standard dual-energy Xray absorptiometry (DXA) scanning. DXA instrument manufacturers' published entrance skin exposure is about 3 mR (0.77 microC/kg), which is equivalent to the radiation exposure received during a transcontinental plane trip.

Vascular ring due to right aortic arch with mirror-image branching and left ligamentum arteriosus: complete preoperative diagnosis by magnetic resonance imaging.

Magnetic resonance imaging (MRI) has been increasingly employed in the evaluation of aortic arch abnormalities. We present a rare form of vascular ring, that of a right aortic arch with mirror-image branching and left ligamentum arteriosus, which was clearly defined preoperatively by MRI. The patient subsequently underwent successful surgical division of the vascular ring followed by improvement in respiratory symptoms.