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Communication Dans Un Congrès Année : 2017

Morphotypes and typical locations of the liver and relationship with anthropometry

Résumé

The liver is one of the most injured organs in road or domestic accidents. To protect or repair it, companies and clinicians rely more and more on numerical finite elements models. It is highly complex owing to its structure, its dual blood supply and its environment. It is located under the diaphragm and partially covered by the thoracic cage and it presents a high variability of its shape. In order to improve finite element modelling of the liver, an anatomical customization must be done. Three aspects of the liver anatomy have been studied. First, some authors focused on the external shape of the liver. Caix and Cubertafond have found two morphotypes according to the subject's morphology. Nagato et al. have divided the liver in six morphotypes depending on the costal and diaphragmatic impressions, or the development of one lobe in relation to the other. Studer et al. have stated on two morphotypes thanks to the ratio of two geometrical characteristics of the liver. Secondly some authors focused on the location of the liver in the thoracic cage. The liver's location in different postures has been determined in vivo and on cadaveric subjects. Finally, the variability of the internal shape of the liver has been reported. Some authors have described different segments based on the hepatic vessels and particularly the hepatic veins. The purpose of our study is a global analysis of the liver anatomy, quantifying at the same time its external shape, its internal vascular structure and its anatomical location, applied to livers reconstructed from 78 CT-scans, in order to identify liver's morphotypes and typical locations in the thoracic cage. Moreover, we analyzed the ability of subject's characteristics to predict these morphotypes and locations.
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Dates et versions

hal-01764628 , version 1 (12-04-2018)

Identifiants

  • HAL Id : hal-01764628 , version 1

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Audrey Chenel, Cyril Kahn, Karine Bruyere-Garnier, Thierry Bege, Katia Chaumoitre, et al.. Morphotypes and typical locations of the liver and relationship with anthropometry. EUROMECH Colloquium 595 : Biomechanics and computer assisted surgery meets medical reality, Aug 2017, LILLE, France. 3 p. ⟨hal-01764628⟩
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