TABLE 1

Pearson Correlation Coefficients (R²), Deming Regression Slope, and Bias Between Tumor VOI (NLR) and Parametric-Based (BFM and Patlak) K_i Values

SSA	Method	Correlation (R²)	Slope	Bias
⁶⁸Ga-DOTATOC	BFM	0.98	0.81 (0.75 to 0.87)	0.00 (−0.07 to 0.07)
	Patlak	0.95	0.71 (0.62 to 0.80)	0.00 (−0.12 to 0.10)
⁶⁸Ga-DOTATATE	BFM	0.97	0.88 (0.79 to 0.96)	0.02 (−0.05 to 0.08)
	Patlak	0.92	0.74 (0.62 to 0.86)	0.00 (−0.11 to 0.12)

Data in parentheses are 95% confidence intervals.