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Phagocytic labeling of leukocytes with 99mTc-albumin colloid for nuclear imaging
C S Marcus1, J H Kuperus, J A Butler
1Division of Nuclear Medicine, Harbor-UCLA Medical Center, Torrance 90509.
A procedure is described for the phagocytic labeling of white blood cells (WBC) with high specific activity 99mTc--albumin colloid (TAC). The preparation contains approximately equal activities of granulocytes and monocytes. Heparinized whole blood (40 cm3) yields a preparation containing a total of 148-222 MBq (4-6 mCi) TAC-WBC including about 20% free TAC. The complete preparation time is 75 min. Imaging is completed 30 min to 4 h post administration of the TAC-WBC. Quality control methods and imaging protocols are described.
A procedure is described for the phagocytic labeling of white blood cells (WBC) with high specific activity 99mTc--albumin colloid (TAC). The preparation contains approximately equal activities of granulocytes and monocytes. Heparinized whole blood (40 cm3) yields a preparation containing a total of 148-222 MBq (4-6 mCi) TAC-WBC including about 20% free TAC. The complete preparation time is 75 min. Imaging is completed 30 min to 4 h post administration of the TAC-WBC. Quality control methods and imaging protocols are described.