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Simultaneous CT and SPECT tomography using CZT detectors

  • US 6,399,951 B1
  • Filed: 02/02/2000
  • Issued: 06/04/2002
  • Est. Priority Date: 02/02/2000
  • Status: Expired due to Fees
First Claim
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1. A method for simultaneous transmission x-ray computed tomography (CT) and single photon emission tomography (SPECT), comprising the steps of:

  • injecting a subject with a tracer compound tagged with a γ

    -ray emitting nuclide;

    directing and x-ray source along an axis toward said subject;

    rotating said x-ray source around said subject;

    operating said x-ray source during said rotating step;

    rotating a single cadmium zinc telluride (CZT) two-sided detector on an opposite side of said subject from said source;

    simultaneously detecting, with respect to position and energy, each pulsed x-ray and each emitted γ

    -ray captured by said single CZT detector during said rotating;

    recording data indicative of each said position and each said energy of each said captured x-ray and α

    -ray; and

    , creating respective CT and SPECT images from said recorded data.

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