Article Figures & Data
Figures
- FIGURE 1.
Whole kidney region of interest with perirenal background region. Yellow = left kidney background; red = left kidney; green = right kidney; blue = right kidney background.
Tables
Identity Dose Route of administration 99mTc-MAG3 (recommended) or… 74 MBq (2 mCi); range: 37–185 MBq (1–5 mCi) Intravenous 99mTc-diethylenetriamine pentaacetic acid 185 MBq (5 mCi); range: 185–370 MBq (5–10 mCi) Intravenous Pediatric dose: 99mTc-MAG3 Without flow study: 3.7 MBq/kg (0.10 mCi/kg); with flow study: 5.55 MBq/kg (0.15 mCi/kg); minimum administered activity: 37 MBq (1.0 mCi); maximum administered activity: 148 MBq (4 mCi) Intravenous Furosemide (based on creatinine level; mg/dL) Intravenous 1.0 20 mg >1.5 40 mg 2.0 60 mg 3.0 80 mg Pediatric dose: furosemide 1 mg/kg to maximum of 40 mg Intravenous MAG3 = mercaptoacetyltriglycine.
99mTc-MAG3 is preferred tracer in patients with known impaired renal function.
Parameter Characteristics Standard/optional/preferred Camera type Large-field-of-view γ-camera Standard Energy peak 140 keV Standard Energy window 20% Standard Collimator Low-energy, all-purpose, or low-energy, high resolution Standard Patient position Supine Standard Camera position Posterior Standard Injection-to-imaging time Immediately on injection Standard Acquisition type Dynamic Standard Static Standard Views Posterior Standard Additional views Prevoid and postvoid supine kidneys and bladder Standard Postvoid erect image Optional Matrix 128 × 128 Standard Number of views 2–3 Standard Time per view Dynamic: 2–4 s/frame for 60–120 s and then 1–2 min/frame for 30 min Standard Additional view time per projection Static: 500,000 to 1 million counts Standard
