Osteomyelitis was surgically produced in the proximal tibia of ten dogs. A sham operation was performed on the other tibia. Early (3 hr) and late (20 hr) imaging was performed 1, 4, 7, 10, and 13 wk later, while the osteomyelitis progressed from acute to chronic. Indium-111-IgG had a significantly greater accumulation at the osteomyelitis site than 111In-leukocytes, both during early (p = 0.001) and late (p = 0.03) imaging, and at each of the weeks studied (p < 0.001). During early imaging, both agents gave equivalent lesion to background ratios. On the late images, the 111In-leukocytes gave significantly higher lesion-to-background ratios than 111In-IgG (p < 0.001) and higher ratios than they did during the early images (p < 0.001). Both agents had greater accumulation in acute osteomyelitis than in chronic osteomyelitis (p < 0.02). Osteomyelitis in the surgical site can be distinguished from the uptake in the sham surgery site using 111In-leukocytes, but not when using 111In-IgG.
|Original language||English (US)|
|Number of pages||5|
|Journal||Journal of Nuclear Medicine|
|State||Published - Jan 1 1991|
ASJC Scopus subject areas
- Radiology Nuclear Medicine and imaging