New CT Scan Method Lowers Radiation Exposure

CT scans are often sued to create accurate images of specific parts of the body to diagnose a range of problems and diseases, including cancer. However, they do subject patients to high-energy wavelengths that could potentially damage DNA and the ability of the cells to repair damage done. Over time, this can lead to cell mutations.

Based on a study by researchers at UCL using a micro CT scanner, a new CT scan technique can reduce radiation exposure to the patient without reducing the image quality. The study sought to reduce radiation exposure by applying a mask that would split the X-rays by use of slits. The results were compared to traditional CT scans and the quality of the images were comparable while reducing the amount of radiation the patient was exposed to during the session. With an estimated 80 million CT scans done annually in the US, it is thought that about 25% of all radiation exposure in the US is a result of CT scans. The sharpness of the image can also be improved by changing the aperture of the mask used.

To learn more about the study, read New CT Scan Method Lowers Radiation Exposure.

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