TUSTIN, Calif.--(BUSINESS WIRE)--Toshiba America Medical Systems, Inc. (TAMS) announced today that the nation’s largest outpatient imaging practice, Steinberg Diagnostic Medical Imaging (SDMI) in Las Vegas, is the first to install the new Aplio™ XG ultrasound system. The system was introduced at the Radiological Society of North America (RSNA) annual meeting in November 2006 and is the latest version of the company’s Aplio ultrasound platform.