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. Author manuscript; available in PMC: 2021 Jan 1.
Published in final edited form as: Neurosurg Focus. 2020 Jan 1;48(1):E2. doi: 10.3171/2019.10.FOCUS19703

FIG. 3.

FIG. 3.

Graphs showing inversely proportional relationship between infusate MW and Vd in multiple settings. A: In the 3- to 20-kDa range, this relationship was linear (R2 = 0.99 in all settings). B: For acute CED and osmotic pump over a broader range, 570 Da up to 150 kDa, this relationship was better modeled by exponential decay regression (R2 = 0.91 for acute CED and 0.96 for acute osmotic pump).