nuclear imaging: emission tomography iii - PowerPoint PPT Presentation


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2D data acquisition. In 2D (slice) data acquisition, coincidences are detected and recorded within each detector ring or small groups of adjacent detector ringsPET scanners designed for 2D data acquisition have thin annular collimators (typically tungsten) to prevent most radiation emitted by activity outside a transaxial slice from reaching the detector ring for that sliceFraction of scatter coincidences reduced because of the geometry.

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