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- W2003552098 abstract "Experimental verification of the new dichotomic sampling scheme was attempted and applied to a circular ring PET system to improve the sampling thereby the overall system resolution and its performances. In the experiment, two different types of aperture collimators were adopted for high resolution (HR) and very high resolution (VHR) imaging. In HR mode, a resolution of 6.5 mm FWHM was obtained without appreciable degradation in overall sensitivity which represents a threefold resolution improvement over the original system. In phantom studies with HR mode a sensitivity of 4500 counts/sec/μCi/cc was obtained for a 20 cm diameter uniform phantom filled with water. VHR mode experiment was also conducted to observe the ultimate resolution capability of DICHOTOM-I system and resolution of 4.2 mm FWHM was obtained at the expense of sensitivity reduction by a factor of four from HR mode experiment." @default.
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- W2003552098 date "1983-06-01" @default.
- W2003552098 modified "2023-09-23" @default.
- W2003552098 title "Experimental Results of the Dichotomic Sampling in Circular Ring Positron Emission Tomograph" @default.
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- W2003552098 doi "https://doi.org/10.1109/tns.1983.4332667" @default.
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