Positron emission tomography imaging frame with variable structure
2011
The invention discloses a positron emission tomography imaging frame with a variable structure. Detection modules in the frame can be adjusted in multi-degree of freedom. The frame comprises a frame inner ring and/or a frame fixed ring and/or a frame outer ring, wherein the detection module on each module track forms a detection ring for imaging; the detection modules can realize radial movement, circumferential motion and/or direction adjustment on the module tracks on a round track of the frame inner ring so as to build the detection rings with various dimensions and/or shapes; the detection modules can be moved to other module tracks under the action of a mechanical arm on the frame outer ring and change the sequence of the detection modules so as to construct the detection rings with various different properties of the detection modules; and the whole detection rings can do circular motion. The frame has high structure adaptability and high adjustability and is a key technique for realizing customized type, one-machine multifunctional type and one-machine multi-purpose type application adaptability positron emission tomography imaging instruments.
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