Siemens highlights dual source CT clinical uses

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Siemens Medical Solutions computed tomography (CT) division last week demonstrated the latest clinical results of syngo Dual Energy, to show that the technology has crossed into daily practice. The company hosted a forum to discuss the topic at the Stanford University's 9th Annual International Symposium on Multidetector-Row CT in San Francisco last week.

Six dual energy applications are already available for daily use, including accurate subtraction of bone in CTAs with the corresponding differentiation between hard plaques and contrast agents, iodine removal from liver scans generating a virtual unenhanced image, display of lung perfusion defects, better visualization of cartilage, tendons, and ligaments and kidney stone characterization.

Siemens said that the idea of dual energy is not new to the CT community. Earlier imaging approaches, however, failed to seamlessly align the imaged anatomy. The Somatom Definition overcomes this limitation by permitting the use of two sources at two different kV levels simultaneously. The result is two spiral data sets acquired in a single scan, providing diverse information, which allows physicians to differentiate, characterize, isolate, and distinguish the imaged tissue and material.