New CT scanner yielded better images with less radiation

A next-generation CT scanner produced higher-quality images, with as much as 95% less radiation exposure, compared with currently used machines, according to results of a study.Marcus Y. Chen, MD, a clinician in the NHLBI’s Advanced Cardiovascular Imaging Laboratory, and colleagues analyzed data from 107 patients (mean age, 55.4 years; 53.3% men) who underwent coronary CT angiography with a new second-generation CT scanner. They then compared radiation exposure and image quality with 100 patients who underwent CT imaging with the previous first-generation scanner.







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