Volume cone beam acquisition on a nuclear spect system using a digital flat panel
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United States of America Patent
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Dec 30, 2003
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N/A
app pub date -
Jun 1, 2001
filing date -
Jun 1, 2001
priority date (Note) -
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Abstract
A diagnostic imaging system includes a rotating gantry (16; 216) which defines a subject receiving aperture (18; 218). A rotatable source of high energy penetrating radiation (20; 220) and a corresponding two-dimensional flat panel x-ray detector (26; 226) are disposed across the subject receiving aperture (18; 218). A plurality of nuclear detector heads (40a , 40b; 240a-240c) are movably attached to the rotating gantry (16; 216) in order to detect radiation emitted by a radiopharmaceutical injected into the subject (12; 212). Each of the nuclear detector heads (40a, 40b; 240a-240c) within the system includes a variable radiation shield (42a, 42b) disposed adjacent a radiation receiving face on the detector head. The diagnostic imaging system may be operated in a fluoroscopic/radiographic mode in which an isocentric x-ray beam strikes the center of the detector surface or in a volume imaging mode.
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