Optimization of Patient
Issues in PET
Patient Dosimetry:
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Critical organ is the bladder wall (80-100 mR/mCi)
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Cleared from non-cardiac tissues within 3 to 24 hours after
administration; clearance from the heart may require more than 96 hours.
[18F]-FDG that is not involved in glucose metabolism is excreted unchanged in
the urine.
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16% of FDG dose is eliminated in urine in 1 hr and 60% at 2.3 hours