| abstract |
The invention relates to a method for the simultaneous transmission of a digital computed tomography (CT) and a single photon emission tomography (SPECT). The steps of this process consist in: injecting a subject with a tracer compound labeled with a gamma-ray emitting nuclide, directing an x-ray source on the subject, rotating the x-ray source around the subject, emitting x-rays for this rotation phase, rotate a double-sided cadmium zinc telluride (CZT) detector on the side of the subject opposite the source, simultaneously detect the position and energy of each pulsed x-ray and each gamma ray emitted, captured by the CZT detector, record the data for each position and each energy value for each of the x-rays and gamma rays, and produce CT and SPECT tomographic images from this recorded data. The energy levels of the x-rays are biased so that they are lower than the energy levels of the gamma rays. The x-ray source is operated in a continuous mode. This process can be carried out at room temperature. |