United States CT Scanners Market Assessment, By Type [Stationary CT Scanners, Portable CT Scanners], By Technology [High-Slice CT Scanners, Medium-Slice CT Scanners, Low-Slice CT Scanners, Cone-Beam CT Scanners], By Application [Cardiovascular, Orthopedics, Neurology, Oncology, Others], By End-user [Hospitals, Diagnostic Imaging Centers, Others], By Region, Opportunities and Forecast, 2017-2031F