Less radioactivity deemed possible for PET/CT scans

February 2, 2016

A recent study by the Yale School of Medicine could help lower radiation exposure during PET/CT scans, a medical imaging technique that produces functional images of the body.

Published last month, the study sought to determine a threshold for the minimum radiation exposure necessary for PET/CT imaging. Since evidence from the past decade has indicated that radiation exposure during medical imaging may carry a risk of cancer, scientists have worked to minimize radiation exposure during medical imaging involving x-rays and radiation, lead study author and medical school professor Ming-Kai Chen said. The researchers found that dosage for the radioactive isotope injected during PET/CT scans, fluorine-18, could be decreased to threshold levels lower than the current recommendations of the European Association of Nuclear Medicine without compromising the quantitative accuracy of the image.

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NOTE: This study is published in the Journal of Nuclear Medicine Technology.