Brian Lott

Despite the image of young snowboarders recklessly bombing downhill, the popular sport actually has no greater percentage of injuries than does skiing. Snowboarders have their own types of injuries, however, related to factors unique to the sport.

The choice of a contrast agent for MR imaging of the liver is highly dependent on the clinical problem. Extracellular gadolinium can characterize most lesions and detect hypervascular tumors, while superparamagnetic iron oxide (SPIO) particles detect smaller metastases and characterize hepatocellular lesions, according to Prof. Philip J. Robinson, a clinical radiologist at St. James' Hospital in Leeds, U.K.