As warnings and concern increase over the health risks of commonly used scanning tests involving high doses of radiation, radiologists and scientists are seeking ways to improve the safety of the tools they use in diagnosing disease. At Porter Adventist Hospital, for example, physicians and technicians have developed a relatively low-dose method of doing computed tomography (CT) scans of the heart, as well as ways to decrease radiation exposure in other routine procedures. CT heart scans are commonly used in detecting early heart disease... 
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