Siemens prepares x-ray tube to encircle patients

February 7, 2008 Diagnostic Imaging. Siemens prepares x-ray tube to encircle patients Novel volumetric design promises faster scans than traditional mechanical CT gantry approach Greg Freiherr -------------------------------------------------------------------------------- Siemens Healthcare is out to change the x-ray tube, which has hardly evolved from the pairing a century ago of anode and cathode inside a bulbous vacuum tube. With Xintek, a small company in Research Triangle Park, NC, the German company is developing a tube that will encircle the patient, firing x-rays from surrounding points and capturing a volume of data in an instant. Remarkable as they are, today's quarter- to half-second gantry rotations would pale next to the virtually instantaneous scans possible with “multipixel” x-ray tubes.

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