Investigating accuracy of 3D printed liver models with computed tomography

Quantitative Imaging in Medicine and Surgery
Jan WitowskiMichał Pędziwiatr

Abstract

The aim of this study was to evaluate the accuracy of three-dimensional (3D) printed liver models developed by a cost-effective approach for establishing validity of using these models in a clinical setting. Fifteen patients undergoing laparoscopic liver resection in a single surgical department were included. Patient-specific, 1-1 scale 3D printed liver models including the liver, tumor, and vasculature were created from contrast-enhanced computed tomography (CT) images using a cost-effective approach. The 3D models were subsequently CT scanned, 3D image post-processing was performed, and these 3D computer models (MCT) were compared to the original 3D models created from the original patient images (PCT). 3D computer models of each type were co-registered using a point set registration method. 3D volume measurements of the liver and lesions were calculated and compared for each set. In addition, Hausdorff distances were calculated and surface quality was compared by generated heatmaps. The median liver volume in MCT was 1,281.84 [interquartile range (IQR) =296.86] cm3, and 1,448.03 (IQR =413.23) cm3 in PCT. Analysis of differences between surfaces showed that the median value of mean Hausdorff distances for liver parenchyma wa...Continue Reading

Associated Clinical Trials

Citations

May 28, 2020·Frontiers in Bioengineering and Biotechnology·Sepideh HatamikiaWolfgang Birkfellner
Oct 20, 2020·HPB : the Official Journal of the International Hepato Pancreato Biliary Association·Victor Lopez-LopezPascual Parrilla-Paricio
Jul 10, 2021·Advanced Science·Zhongboyu JinYong He

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