Siemens launches 64-slice Computed Tomography scanner with enhanced performance for heart examinations

San Francisco 25 June 2004Siemens Medical Solutions has introduced the SOMATOM Sensation Cardiac 64, the first 64-slice computed tomography (CT) scanner particularly optimized for cardiac, thoracic and vascular imaging, at the Stanford University's 6th Annual International Symposium on Multidetector-Row CT. With a standard gantry rotation speed of 0,33 seconds, the new scanner routinely achieves a temporal resolution up to 83 milliseconds (ms), and thus facilitates scanning of patients even with higher heart rates, virtually freezing the heart's motion.


The industry's fastest gantry rotation speed of 0,33 seconds will also become available as an option for cardiac and advanced body CT applications on the SOMATOM Sensation 64, which was first introduced at the RSNA 2003 and which comes with a standard 0,37 seconds rotation time.

"The combination of the fast rotation speed of 0,33 seconds with 64-slice acquisition now enables an ECG-gated coverage of the entire chest in a short 20 seconds breath-hold. For the first time this CT performance allows for the evaluation of the most common causes of acute chest pain with a single scan", stated Richard Hausmann, Ph.D., president, CT Division, Siemens Medical Solutions.

Utilizing Siemens' unique z-Sharp Technology, the SOMATOM Sensation 64-slice scanners deliver optimal image quality in advanced body and cardiovascular imaging applications with a spatial resolution of 0,4 millimeters (mm), allowing clear visualization of even finest anatomical detail. z-Sharp Technology combines rapid movement of the X-ray source in the STRATON tube with the 64-channel UltraFastCeramic (UFC) detector design. This enables a virtual doubling of the amount of slices acquired per rotation and thus is designed to provide substantially enhanced spatial resolution and image quality without an increase in X-ray dose. The system's temporal and isotropic spatial resolution may now allow for virtually motion free evaluation of peripheral segments of the coronary arteries, including plaque evaluation and improved follow-up assessment of stent patency with a high confidence.

"In my opinion, with this level of spatial and temporal resolution, the Siemens 64-slice CT scanners have set a standard to which other systems will be measured. The future of volume imaging for cardiac and non-cardiac imaging has now arrived", stated Elliot Fishman, M.D., professor of Radiology at the Johns Hopkins University in Baltimore. As proven by the world's first clinical images from a 64-slice CT system, which Siemens released in May 2004, the SOMATOM Sensation 64 already sets a new benchmark in imaging with its ability to visualize the smallest intracranial, pulmonary, mesenteric and peripheral vessels in less than ten seconds.

After completing a comprehensive testing phase at leading clinical institutions in the Unites States, Europe and Asia, the 0,33-second rotation time on Siemens' SOMATOM Sensation 64-slice scanners will be commercially available in fall 2004. More Siemens news can be found in this VMW issue's article Siemens introduces new hybrid imaging product line at Society of Nuclear Medicine Conference 2004

Leslie Versweyveld

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