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Factors affecting SUV
Biological factors
• blood glucose level
• patient motion
• patient comfort
• Inflammation
Errors
• cross-calibration PET versus dose calibrator
• rest/remaining activities in syringe
• incorrect synchronization of clocks
• use of injection time rather than dose calibration time
• paravenous injection
Technical factors
• scan acquisition parameters
• image reconstruction settings
• region of interest strategies
• SUV calculation/normalization
• use of blood glucose level correction
• use of contrast agents