Cross-calibration for quantitative functional imaging
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United States of America Patent
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Jan 16, 2018
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Jan 13, 2015
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Jan 14, 2014
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Abstract
Cross-calibration is provided for functional imaging. In PET or SPECT, the inaccuracies from the dose and detector sensitivity may be reduced or removed in both activity concentration and uptake. By using measures from both the radiotracer for the patient and factory calibrated sources, the variability due to dose may be removed. In SPECT, a measurement of system specific sensitivity to a factory calibrated point source is used to improve the accuracy of uptake values, not just activity concentration.
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