WASHINGTON, Dec. 8 (UPI) -- The U.S. Food and Drug Administration says it has issued interim recommendations to address concerns about excess radiation exposure in medical facilities.
The FDA said its recommendations are part of an ongoing investigation into cases of excess radiation occurring during computed tomography perfusion brain imaging. CT or CAT scanning involves the use of X-rays to produce 3-D images to help physicians diagnose and treat medical conditions. Perfusion scans evaluate blood flow in various organs such as the brain and the heart.
Federal officials issued an initial safety notification in October after learning of more than 200 patients who were exposed to excess radiation at Cedars-Sinai Medical Center in Los Angeles during an 18-month period.
Officials said they have also received reports of possible excess radiation from other states.
The interim recommendations for imaging facilities, radiologists and radiologic technologists include:
-- Facilities assess whether patients who underwent CT perfusion scans received excess radiation.
-- Facilities review radiation dosing protocols for all CT perfusion studies.
-- Radiologic technologists check the CT scanner display panel to make sure the amount of radiation to be delivered is at the appropriate level for the patient.
The agency is also advising manufacturers to review their training for users, reassess information provided to health care facilities and put into place new surveillance systems to identify problems quickly.