Exact CT-based liver volume calculation including nonmetabolic liver tissue in three-dimensional liver reconstruction

• Verfasst von: Müller, Sascha A. [VerfasserIn]
• Verfasst von: Bläuer, Karin [VerfasserIn]
• Verfasst von: Kremer, Michael [VerfasserIn]
• Verfasst von: Thorn, Matthias Sebastian [VerfasserIn]
• Verfasst von: Mehrabi, Arianeb [VerfasserIn]
• Verfasst von: Meinzer, Hans-Peter [VerfasserIn]
• Verfasst von: Hinz, Ulf [VerfasserIn]
• Verfasst von: Metzger, Jürg [VerfasserIn]
• Verfasst von: Büchler, Markus W. [VerfasserIn]
• Verfasst von: Schmied, Bruno [VerfasserIn]
• Titel: Exact CT-based liver volume calculation including nonmetabolic liver tissue in three-dimensional liver reconstruction
• Verf.angabe: Sascha A. Müller, M.D., Karin Bläuer, M.D., Michael Kremer, M.D., Matthias Thorn, Ph.D., Arianeb Mehrabi, M.D., Hans-Peter Meinzer, Ph.D., Ulf Hinz, Jürg Metzger, M.D., Markus W. Büchler and Bruno M. Schmied, M.D.
• Jahr: 2010
• Umfang: 8 S.
• Fussnoten: Erstmals am 9. Juni 2009 online veröffentlicht ; Gesehen am 11.05.2023
• Titel Quelle: Enthalten in: Journal of surgical research
• Ort Quelle: Orlando, Fla. : Academic Press, 1961
• Jahr Quelle: 2010
• Band/Heft Quelle: 160(2010), 2, Seite 236-243
• ISSN Quelle: 1095-8673
• DOI: doi:10.1016/j.jss.2009.04.050
• Datenträger: Online-Ressource
• Sprache: eng
• Sach-SW: algorithm
• Sach-SW: hepatic blood pool
• Sach-SW: liver volumetry
• Sach-SW: living donor liver transplantation
• Sach-SW: vessel tree
• K10plus-PPN: 1845109961

Abstract

Exact preoperative determination of the liver volume is of great importance prior to hepatobiliary surgery, especially in living donated liver transplantation (LDLT) and extended hepatic resections. Modern surgery-planning systems estimate these volumes from segmented image data. In an experimental porcine study, our aim was (1) to analyze and compare three volume measurement algorithms to predict total liver volume, and (2) to determine vessel tree volumes equivalent to nonmetabolic liver tissue. Twelve porcine livers were examined using a standardized three-phase computed tomography (CT) scan and liver volume was calculated computer-assisted with the three different algorithms. After hepatectomy, livers were weighed and their vascular system plasticized followed by CT scan, CT reconstruction and re-evaluation of total liver and vessel volumes with the three different algorithms. Blood volume determined by the plasticized model was at least 1.89 times higher than calculated by multislice CT scans (9.7% versus 21.36%, P=0.028). Analysis of 3D-CT-volumetry showed good correlation between the actual and the calculated liver volume in all tested algorithms with a high significant difference in estimating the liver volume between Heymsfield versus Heidelberg (P=0.0005) and literature versus Heidelberg (P=0.0060). The Heidelberg algorithm reduced the measuring error with deviations of only 1.2%. The present results suggest a safe and highly predictable use of 3D-volumetry in liver surgery for evaluating liver volumes. With a precise algorithm, the volume of remaining liver or single segments can be evaluated exactly and potential operative risks can therefore be better calculated. To our knowledge, this study implies for the first time a blood pool, which corresponds to nonmetabolic liver tissue, of more than 20% of the whole liver volume.