The number of hospital and non-hospital CT sites in the U.S. rose by 24 percent from 2003 to 2006, at an annual rate of 8 percent, according to IMV Medical Information Division’s recent census, as facilities replace their installed CT base and add capacity more rapidly.
The survey reported that 62.0 million procedures were performed in 7,650 hospital and non-hospital sites in 2006 up from 50.1 million procedures in 2003.
“With the rapid technological innovations in volumetric scanning, increased scan speed, thinner CT slices, and 3D visualization, CT scanners are continuing to transform the clinical landscape,” observed Lorna Young, senior director, Market Research. “As a result, radiology departments and imaging centers are stepping up the pace of replacing their installed base and adding capacity. Going forward, the replacement market will range from 1,200 to 1,600 units per year over the next five years, and the total annual market will exceed 2,000 units.”
IMV's 2006 CT Market Summary Report also identifies the following trends:
• CT Angiography procedures are performed by 58% of the CT sites.
• Over 80% of the CTs installed in 2006 were multi-slice CTs with 16 slices.
• Two-thirds of the CT installed base will be replaced within seven years of installation, with an average replacement cycle of 6.7 years.
• The large amount of data from volumetric scanning places increased demand on processing the data. Over 60% of the sites use workstations for processing and displaying CT images, with 3D software as an essential capability.
For more information about IMV’s CT Census Database and Market Summary Report, visit the corporate website at www.imvinfo.com or call 847-297-1404 to speak with a representative.
March 12, 2026 
