Abstract
BackgroundLiver volume estimation is considered as an integral part in preoperative evaluation in patients undergoing liver transplantation; computed tomography and magnetic resonance imaging are considered the gold standard methods for liver volume estimation, and both are reliable and valid in determination of liver volume via manual and semi-automated methods. Reliable and accurate set of three simple measurement planes using two-dimensional ultrasound for volumetric assessment of liver was determined, and predictive equation using these three simple measurements was performed, which is simple to perform and easy to calculate, in order to evaluate liver volume and validate these measurements against CT images. Our aim in this study was to evaluate the efficacy and validity of two-dimensional ultrasound in liver volume estimation compared to CT volumetry as a gold standard.ResultsA strong linear positive correlation with no statistical significant difference was found between 2D US and semi-automated CT volumetric, and result was r = 0.7402 and p > 0.05, with an average liver volume of 1572.10 (± 326.43) cm3 and 1559.30 (± 381.02) cm3 respectively.No statistically significant difference was found also between the two modalities in different age groups and different sexes.ConclusionSimple linear two-dimensional ultrasound could be considered an efficient, accurate, and trustable tool for liver volume measurement in clinical practice.
Highlights
Liver volume estimation is considered as an integral part in preoperative evaluation in patients undergoing liver transplantation; computed tomography and magnetic resonance imaging are considered the gold standard methods for liver volume estimation, and both are reliable and valid in determination of liver volume via manual and semi-automated methods
The aim of this study is to evaluate the efficacy and validity of 2D ultrasound in liver volume estimation using Childs et al.’s equation compared to Computed tomography (CT) volumetry as a gold standard
2D ultrasound volumetric assessment of the liver was performed in 100 patients who underwent tri-phasic multi-slice computed tomography (MSCT) abdomen for reasons other than related to liver such as acute abdomen, renal mass assessment, adnexal, and pelvic lesions which were enrolled in this prospective study from October 2017 to March 2018
Summary
Liver volume estimation is considered as an integral part in preoperative evaluation in patients undergoing liver transplantation; computed tomography and magnetic resonance imaging are considered the gold standard methods for liver volume estimation, and both are reliable and valid in determination of liver volume via manual and semi-automated methods. Our aim in this study was to evaluate the efficacy and validity of two-dimensional ultrasound in liver volume estimation compared to CT volumetry as a gold standard. Liver volume estimation is considered as an integral part in preoperative evaluation in patients undergoing liver transplantation and determines the surgical respectability of hepatic focal lesions by assessment of remnant liver volume [1]. Computed tomography (CT) and magnetic resonance imaging (MRI) are considered the gold standard methods for liver volume estimation, and both are reliable and valid in determination of liver volume via manual and semi-. Ultrasound evaluation of liver size is available, inexpensive, and comparably a fast imaging technique which does not use ionizing radiation, and single, simple linear ultrasound measurements of the liver are performed, but they are limited, as they provide dimensional information at only one site within one lobe of the liver (right lobe) [11]
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