Fig. 1From: Iohexol plasma clearance for measuring glomerular filtration rate: effect of different ways to calculate the area under the curveResult of the compartmental SI and non-compartmental unweighted NLLS fitting procedures. The slow compartment fit is also shown. The SI-method results in GFR = 37.5 mL/min/1.73m2, while the NLLS-method results in GFR = 0 mL/min/1.73m2 (because the curve ends in a plateau value)Back to article page