Radionuclide Imaging of Infection

Four- and 24-h whole-body ^99mTc-HMPAO–labeled leukocyte images. At 4 h, there is persistent blood-pool activity. Activity is also seen in the liver, spleen, and genitourinary tract. At 24 h, the blood-pool activity has cleared. Activity is present in the bladder and colon, in addition to the liver, spleen, and bone marrow. Compare with Figure 3.