Patent ID: 7858925

Claim:
A method for calibrating a positron emission tomography scanner comprising the steps: a) obtaining a calibrator source aliquot and a PET calibration source wherein the calibrator source aliquot and the PET calibration source each contain a radionuclide dispersed within a matrix obtained from a single reservoir of the radionuclide dispersed within the matrix material; b) placing the calibrator source aliquot in a dose calibrator; c) measuring the radioactivity density in the calibrator source aliquot with the dose calibrator; d) placing the PET calibration source in a phantom; e) scanning the PET calibration source in a PET scanner; f) correlating a measured intensity obtained from the step of scanning the PET calibration source with the measured radioactivity density in the calibrator source aliquot; and g) using this comparison to calibrate the PET scanner.