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  • Computed tomography scanning systems that use a magnetically rotating electron beam and stationary tungsten \'target\' rings rather than a standard x-ray tube to generate x-rays. Because there is no mechanical motion, the scan times can be very short, on the order of 50 ms each or less. These systems are mainly designed to allow transaxial imaging of the beating heart, but due to their very rapid image acquisition, they can also be used in quantification of coronary artery calcification and pericardial disease, as well as in uses in which motion could affect image acquisition (e.g., pediatric, geriatric, or trauma patients).
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