Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

Przeglądasz jako GOŚĆ
Tytuł pozycji:

Liver segments: an anatomical rationale for explaining inconsistencies with Couinaud's eight-segment concept

Tytuł :
Liver segments: an anatomical rationale for explaining inconsistencies with Couinaud's eight-segment concept
Autorzy :
Fasel, J.H.D.
Majno, P.E.
Peitgen, H.-O.
Pokaż więcej
Temat :
ddc:612
couinand
liver
ddc:617
Aged
Middle Aged
Liver/ blood supply
Segment
Portal Vein/ anatomy & histology
Aged, 80 and over
Female
human
Humans
1-2-20 concept
Male
Źródło :
Surgical and Radiologic Anatomy, Vol. 32, No 8 (2010) pp. 761-765
Rok publikacji :
2018
Kolekcja :
Archive_ouverte_UNIGE
Archive_ouverte_UNIGE_enriched
RERO_DOC_Digital_Library
Fraunhofer-ePrints
Fraunhofer-ePrints_enriched
RERO_DOC_Digital_Library_enriched
Oryginalny identyfikator :
pmid: 20111966
Język :
English
ISSN :
0930-1038
DOI :
10.1007/s00276-010-0626-4
BACKGROUND AND PURPOSE: An increasing number of surgical and radiological observations call Couinaud's concept of eight liver segments into question and such inconsistencies are commonly explained with anatomical variations. This paper was intended to demonstrate that, beyond variability, another anatomical principle may allow to understand supposedly differing concepts on liver segmentation. MATERIALS AND METHODS: The study was performed on 25 portal vein casts scanned by helical CT. The branches of the right and left portal vein and their corresponding territories were determined both anatomically and mathematically (MEVIS LiverAnalyzer, MEVISLab). RESULTS: The number of branches coming-off the right and left portal vein was never 8, but many more (mean number 20, range 9-44). Different combinations of these branches and their respective territories, carried out in this study, yielded larger entities and supposedly contradictory subdivisions (including Couinaud's eight segments), without calling upon anatomical variability. CONCLUSIONS: We suggest the human liver to be considered as corresponding to 1 portal venous territory at the level of the portal vein, to 2 territories at the level of the right and left branch of the portal vein, and to 20 at the level of the rami of the right and left branch. This "1-2-20-concept" is a rationale for reconciling apparent discrepancies with the eight-segment concept. On a pragmatic level, in cases in which imaging or surgical observations do not fit with Couinaud's scheme, we propose clinicians not to autonomically conclude to the presence of an anatomical variation, but to become aware of the presence of an average of 20 (and not 8) second-order portal venous territories within the human liver.

Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies