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01 February 2019 : Animal Research  

3D Reconstruction and Evaluation of Accessory Hepatic Veins in Right Hemilivers in Laboratory Animals by Metrotomography: Implications for Surgery

Lenka Kresakova1E*, Jan Danko1A, Zuzana Andrejcakova1C, Eva Petrovova1D, Katarina Vdoviakova1B, Dasa Cizkova1C, Marcela Maloveska1B, Teodor Toth2CD, Marek Tomco3F, Andrej Vrzgula4D, Jana Teleky1B, Peter Supuka5C

DOI: 10.12659/MSM.911726

Med Sci Monit 2019; 25:920-927

Abstract

BACKGROUND: The current study investigated the detection of accessory hepatic veins and their vascular territories in the right hemiliver in rats, guinea pigs, and rabbits, which has become a prerequisite for newly developed clinical procedures. We compared the anatomical continuity of accessory hepatic veins with accessory hepatic veins existing in human livers.

MATERIAL AND METHODS: The analysis of accessory hepatic veins was performed using a corrosion cast method in combination with computer tomography (CT).

RESULTS: In normal livers, accessory hepatic veins were regularly found. The length of these veins was 0.88±0.29 (cm ±SD) in rats, 1.10±0.39 in guinea pigs, and 1.28±0.48 in rabbits. Accessory hepatic veins became a part of the draining vessel draining into segment VI and VII; represented by interpolating and following Chouinard’s segmental concept.

CONCLUSIONS: The importance of detecting accessory hepatic veins lies in the identification of structures requiring special attention during surgery, in reduction of surgical complications, and in choosing the best approach to maintain the vitality of a drainage segment. The vascular reconstruction should be done during surgical interventions.

Keywords: Animals, Laboratory, Hepatic Veins, Imaging, Three-Dimensional, Liver, Tomography, Guinea Pigs, Hepatectomy, Liver Transplantation, Reconstructive Surgical Procedures

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Medical Science Monitor eISSN: 1643-3750
Medical Science Monitor eISSN: 1643-3750