The substantial increase in the use of medical imaging during recent years has fueled speculation that imaging costs were a major factor behind the rise in overall health care costs. However, a study from the Institute for Technology Assessment at Massachusetts General Hospital (MGH) has found that imaging costs remained at a steady percentage of overall hospital costs during a six-year period. The report will appear in the June issue of Radiology and has been released on the journal's website.

"There have been several news stories and reports from insurers claiming that imaging costs are catching and even surpassing drug costs as major drivers of health care inflation," says Scott Gazelle, MD, MPH, PhD, an MGH radiologist who is director of the Institute for Technology Assessment and co-author of the Radiology article. "Those of us who work in imaging believe that its use should be celebrated, since imaging has truly transformed the way we deliver health care. But we also need to understand the value that imaging brings to health care; and when looking at its costs, we need to make sure our analyses are accurate."

In order to objectively assess imaging's contribution to hospital costs, Gazelle and his co-author Molly Beinfeld, MPH, analyzed billing records for patients admitted to MGH between 1996 and 2002. They reviewed data on more than 17,000 patients with diagnoses in six areas typically utilizing imaging stroke, appendicitis, lung cancer, upper gastrointestinal disorders, colon cancer and back pain and compiled information regarding specific imaging studies that were carried out and their costs.

During the study period, the total number of CT scans and MRI studies more than doubled, reflecting increases in the number of patients in the groups analyzed, how many had imaging studies and the number of studies ordered per patient. However, the contribution of imaging to the overall cost of care for these patients remained steady a
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Contact: Sue McGreevey
smcgreevey@partners.org
617-724-2764
Massachusetts General Hospital
24-May-2005

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