In addition, we expanded our nuclear imaging family with the Optima TM NX dual-head system for cardiac and small organ imaging. The TiP TM TV network from GE Medical Systems brings expert instructors into customer sites via satellite for live, interactive training sessions with medical technologists. GE's growing services offering also provides important new opportunities. We acquired National M.D., a leading U.S. biomedical service organization, and expanded our CompreCare TM multivendor service offering. We also acquired certain assets of Specialty Underwriters, further expanding our biomedical service portfolio while adding equipment service insurance to the list of service options available to our customers.
Information technology continues to be the foundation of our service responsiveness.
More than 11,000 GE imaging systems worldwide are being protected by our InSite TM remote service monitoring network because of its proven ability to keep equipment running longer and to return it to operation sooner. We are consolidating these gains by rapidly implementing Six Sigma quality throughout the organization. Since being selected to pilot this initiative for the Company, GE Medical Systems has trained more than 10,000 people in Six Sigma methodology and completed 73 projects.