(A) Mean portal venous pressure over time during CPA (EG+Suc) loading and unloading in rat livers (steps in Table S3) (n = 6). (B) Percentage ethylene glycol in effluent samples collected from the IHVC during loading and unloading of CPA, determined by refractometry (n=4). (C-E) Gross images of control, CPA+sIONP loaded, and unloaded livers, respectively. (F-H) Prussian blue staining shows Fe deposition in control, CPA+sIONP loaded, and unloaded livers. Fe localization is seen in the liver sinusoids and the portal veins of a CPA+sIONP loaded liver. Bar = 100 μm. (I-K) X-ray μCT images of control, CPA+sIONP loaded, and unloaded livers, showing contrast from the iron oxide nanoparticles distributed throughout the liver vasculature (See Supplementary Materials files for 3D rotational images). Data are mean ± SEM.