Combined pet/mrt unit and method for simultaneously recording pet images and mr images

Combined pet/mrt unit and method for simultaneously recording pet images and mr images

  • CN 1,919,147 A
  • Filed: 08/24/2006
  • Published: 02/28/2007
  • Est. Priority Date: 08/24/2005
  • Status: Active Grant
First Claim
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1. combined pet-magnetic resonance tomography apparatus comprises:

  • -magnetic resonance tomography apparatus, it has at least one basic field magnet, gradient coil system (3), comprises the radio frequency system of MR antenna (4), be used for producing radio-frequency excitation pulses and detect emission resonance signal, can with measuring object in the axial direction (z axle) move to the bed of MR fault angiography device-PET detector (1), have at least two detector element (1a that are used for gathering from the gamma ray of measuring object (5) emission, 1b), this detector element (1a, 1b) be arranged on the circumference of measuring object and have such size at least, promptly can detect the gamma ray of launching on measuring object (5) and the direction that is positioned at that is forming on the straight line between the detector element in detector element-one or more equipment computers of controlling software that comprise are used for handling resonance signal that is detected by MR antenna (4) and the gamma ray that is detected by PET detector (1), store M RT data and PET data, and show MR image and PET image,It is characterized in that, PET detector (1) can move the size that also has in the axial direction less than MR antenna (4) in the axial direction, this size is chosen such that mobile in the axial direction PET detector (1), so that the tomography or the cross section of the measuring object (5) of its detection and MR antenna (4) equal number.

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