FIGURE 5. Scintigraphic images of rats with S. aureus calf muscle infections. One group of rats was imaged according to optimized 3-step approach (2 nmol anti-DTPA antibody; 4 h later, 1 nmol BSA-DTPA-In; 5 min later, 40 pmol ¹¹¹In-diDTPA). Other group of rats received ¹¹¹In-IgG (4 MBq, 0.66 nmol). Both groups of rats were imaged 5 h after first intravenous injection.