ECG-gated temporal sampling in cardiac kinetic modeling
A duration and segment technology, which is applied in the fields of radiological diagnostic instruments, medical science, and acoustic wave diagnosis, can solve the problem that the dynamic change of image time cannot be accurately displayed, and achieve the effect of improving image resolution
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[0017] 1, the imaging system 10 includes an object supporting device 12, such as a table or a sofa, which supports an object 14 to be imaged. Subject 14 is injected with one or more radioactive isotopes or tracers to induce positron emission. The cylindrical, annular array of detectors 16 is arranged around the hole 18 of the PET scanner pallet 20 that forms the axial field of view. When the detector has a flat surface, the detector array 16 may be octagonal or other polygons that are close to a circle. The detector units are preferably installed in a sub-array which is installed end-to-end to form the detector array 16. The radiation end shield 22 is installed at the entrance 24 and the exit 26 of the circular hole 18 to form the receiving area or entrance window 28 of the PET scanner 20.
[0018] For example, the driver 30 of the motor extends and / or retracts the object support 12 to achieve the ideal positioning of the object 14 in the inspection area 32 defined by the hole 18,...
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