RadNet Inc is incorporated in Delaware and has been in business since 1985. The Company provides freestanding, fixed-site outpatient diagnostic imaging services in the United States based on number of locations and annual imaging revenue. At December 31, 2012, it operated directly or indirectly through joint ventures, 250 centers located in California, Maryland, Florida, Delaware, New Jersey, Rhode Island and New York. Its services include magnetic resonance imaging (MRI), computed tomography (CT), positron emission tomography (PET), nuclear medicine, mammography, ultrasound, diagnostic radiology (X-ray), fluoroscopy and other related procedures. Diagnostic imaging involves the use of non-invasive procedures to generate representations of internal anatomy and function that can be recorded on film or digitized for display on a video monitor. Diagnostic imaging procedures facilitate the early diagnosis and treatment of diseases and disorders and may reduce unnecessary invasive procedures, often minimizing the cost and amount of care for patients. Diagnostic imaging procedures include MRI, CT, PET, nuclear medicine, ultrasound, mammography, X-ray and fluoroscopy. While X-ray remains the commonly performed diagnostic imaging procedure, the growing and higher margin procedures are MRI, CT and PET. The rapid growth in PET scans is attributable to the increasing recognition of the efficacy of PET scans in the diagnosis and monitoring of cancer. The number of MRI and CT scans performed annual in the United States continues to grow due to their wider acceptance by physicians and payors, an increasing number of applications for their use and a general increase in demand due to the aging population. The Company's sales and marketing team employs a multi-pronged approach to marketing, including physician, payor and sports marketing programs. The market for diagnostic imaging services is competitive. The Company competes locally with groups of radiologists, established hospitals, clinics and other independent organizations that own and operate imaging equipment. Its competitors include Alliance Healthcare Services, Inc., Diagnostic Imaging Group and several smaller regional competitors.