Korean J Transplant.  2022 Nov;36(Supple 1):S291. 10.4285/ATW2022.F-4300.

A new formula for estimation of standard liver volume using liver height and thoracic width

• Lee M
• Yang J

• KMID: 2535518
• DOI: http://doi.org/10.4285/ATW2022.F-4300

Abstract

Background
Precise estimation of the standard liver volume (SLV) is crucial in decision making regarding major hepatectomy and living donor liver transplantation. This study aimed to propose an accurate and efficient formula for estimating the SLV in the Korean population.
Methods
We created a regression model for SLV estimation using a data set of 230 Korean patients with healthy livers. The proposed model was cross validated using a different data set of 37 patients with healthy livers. The total liver volume, except for the volume of liver blood vessels, was measured through computed tomography volumetry as the dependent variable. Various anthropometric variables, liver height, thoracic width, age, and sex (female, 0; male, 1) were considered as candidates for independent variables. We conducted stepwise regression analysis to identify variables to be included in the proposed model.
Results
A new formula was established: SLV=1,275+9.85 body weight (kg)+19.95 thoracic width (cm)+7.401 liver height (mm). The proposed formula showed the best performance among existing formulas over the cross-validation data set.
Conclusions
The proposed formula derived using body weight, thoracic width, and liver height, estimated the total liver volume in the cross-validation data set more accurately than existing formulas.