Siemens reveals first clinical images using its 64-slice CT scanner

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Siemens Medical Solutions this week released the first clinical images acquired using the Somotom Sensation 64-slice CT scanner.

The images were acquired at the Friedrich-Alexander University Erlangen-Nuremberg, Germany. FDA-cleared for the U.S. market in April, Siemens first introduced the high-end system at the 2003 annual meeting of the Radiology Society of North America (RSNA).

The scanner provides 64-slice sub-millimeter imaging per rotation for sub-millimeter volume coverage, a gantry rotation time of 0.37 seconds and delivers high image quality in cardiac, neurology and body imaging applications with a spatial resolution of 0.4 mm.

Acquisition of 64 slices per rotation is possible through the new Straton x-ray tube's Double z-Sampling technology, and new Siemens proprietary detector technology. Siemens says Double z-Sampling allows two focal points in the anode by precise deflection of the electron beam, oscillating almost 5,000 times per second, within the x-ray tube. The technology generates two overlapping beams to pass the scan field. The double readout of the detector produces 64 slice projections at half the thickness of a detector slice.

After completing a comprehensive testing phase at clinical institutions in the Unites States, Europe and Asia, the system will be commercially available this fall.