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- W2037709209 abstract "PCR-I has been designed and built to demonstrate the concept of analog coding to provide high resolution positron tomographic images without interpolative motion. The instrument uses 360 bismuth germanate (BGO) detectors coupled through a lucite light pipe to 90 phototubes. The measured resolution at the center is 4.8 mm. A straightforward extension of the concept will lead to a tomograph capable of obtaining resolution below 3 mm for low energy positron emitters. The sensitivity of PCR-I is 46 000/s for a 20 cm diameter phantom uniformly filled with 1 μCi/cc of a positron emitter. Parameters related to dead time and random and prompt scatter coincidences have been studied. Phantom measurements demonstrate the resolution and uniformity of PCR-I. Animal studies carried out to date include 18F in rat skeleton, <sup xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>11</sup> C-palmitate and <sup xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>11</sup> C-labeled red cells in dog heart and blood flow, and blood volume in monkey brain using C <sup xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>15</sup> O <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>2</sub> and C <sup xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>15</sup> O." @default.
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- W2037709209 date "1984-03-01" @default.
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- W2037709209 title "PCR-I-High Resolution Positron Tomograph Using Analog Coding" @default.
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- W2037709209 doi "https://doi.org/10.1109/tmi.1984.4307645" @default.
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