Background/aim: We assessed the utility of dynamic magnetic resonance imaging (MRI) with gadoxetate-ethoxybenzyl-diethylenetriamine penta-aceticpenta-acetic acid (Gd-EOB-DTPA) (EOB-MRI) for estimating functional liver volume compared to Tc-galactosyl albumin single-photon-emission computed tomography (Tc-GSA SPECT).
Patients And Methods: Regional functional liver volume (left lateral, medial, right anterior, right posterior) of 58 hepatectomized patients was assessed using EOB-MRI and Tc-GSA SPECT, and compared to the actual liver volume with MDCT-3D volumetry.
Results: Tc-GSA SPECT found a significantly lower functional volume of the left lateral section than the actual volume found by MDCT-3D volumetry (p=0.003) and EOB-MRI (p<0.001). Functional liver volume of right anterior section found with Tc-GSA SPECT was significantly higher than that found by MDCT-3D volumetry (p=0.04), despite no differences in asialoglycoprotein receptor 1 (ASGR1) or ATP-dependent organic anion transporting polypeptide 1 (OATP) expression between the left lateral and right anterior sections.
Conclusion: Tc-GSA SPECT might underestimate the function of the left lobe and overestimate that of the right lobe. Therefore, EOB-MRI could be better for estimating the true regional functional liver reserve.
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