Global CT Scanner Market By Type (Non-Spiral Scan Ct, Single-Slice Spiral Scan Ct, and Multi-Slice Spiral Scan Ct), By Application (Head, Lungs, Pulmonary Angiogram, Cardiac, Abdominal and Pelvic, and Extremities), By Region and Key Companies - Industry Segment Outlook, Market Assessment, Competition Scenario, Trends and Forecast 2019-2028