Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2016 Oct-Dec;6(4):237-240.
doi: 10.4103/2229-516X.192588.

The "Triple-Q Algorithm:" A practical approach to the identification of liver topography

Affiliations

The "Triple-Q Algorithm:" A practical approach to the identification of liver topography

Omar Bekdache et al. Int J Appl Basic Med Res. 2016 Oct-Dec.

Abstract

The descriptive identification and interpretation of liver pathology continue to raise debate, especially for trainees and junior physicians. There is wide diversity in the description of liver segmentation with sometimes contradictory terminology between French and American literature. Attempts were made to create a unified nomenclature that simplifies the problem. We propose a simple approach to describe the location of liver pathology in different settings by referring to an algorithm based on three questions. Explanations to answer these questions and correctly describe the location of liver pathology are herein described. In conclusion, we think that the adoption of such an algorithm called arbitrary "the Triple-Q Algorithm" will facilitate the understanding of liver topography for the young physicians, as well as it will allow for the accurate description and localization of the pathological lesions in the liver. This could be achieved after testing and validating this algorism in prospective studies. This could have academic and clinical implications in the medical education and the patient care.

Keywords: Hepatic topography; liver segmentation; nomenclature of liver anatomy.

PubMed Disclaimer

Figures

Figure 1
Figure 1
Liver configuration shows as a reversed flattened L-shape. IVC: Inferior vena cava, RHV: Right hepatic vein, MHV: Middle hepatic vein, LHV: Left hepatic vein, PV: Portal vein, RPV: Right portal vein, LPV: Left portal vein
Figure 2
Figure 2
The “triple-Q Algorithm”. IVC: Inferior vena cava. RHV: Right hepatic vein. MHV: Middle hepatic vein. LHV: Left hepatic vein, PV: Portal vein, GB: Gallbladder, FL: Falciform ligament, HV: Hepatic vein
Figure 3
Figure 3
(a) True division of the liver through Cantlie's line passing through the middle hepatic vein (black arrow). (b) Hepatic veins trifurcation. (c) Accessory right inferior hepatic vein (black arrow). MHV: Middle hepatic vein, LT: Left, RT: Right, IVC: Inferior vena cava
Figure 4
Figure 4
(a) Superior segments (II, IVA, VIII, VII) shown on the left side and inferior segments (III, IVB, V, VI) on the right side. Note the appearance of a part of the caudate lobe (segment I) in the anteromedial pericaval area. (b) Location of the caudate lobe or segment I of the liver between the inferior vena cava and the portal vein

References

    1. Lautt WW. Hepatic circulation: Physiology and pathophysiology. Morgan & Claypool Life Sciences. 2009. [Last accessed on 2014 Oct 10]. Available from: http://www.ncbi.nlm.nih.gov/books/NBK53073/ - PubMed
    1. Campra JL, Reynolds TB. The hepatic circulation. In: Jacoby WB, Popper H, Schachter D, Shafritz DA, editors. The Liver: Biology and Pathobiology. New York: Raven Press; 1988. p. 911.
    1. Pauli EM, Staveley-O'Carroll KF, Brock MV, Efron DT, Efron G. A handy tool to teach segmental liver anatomy to surgical trainees. Arch Surg. 2012;147:692–3. - PMC - PubMed
    1. Rutkauskas S, Gedrimas V, Pundzius J, Barauskas G, Basevicius A. Clinical and anatomical basis for the classification of the structural parts of liver. Medicina (Kaunas) 2006;42:98–106. - PubMed
    1. Cantlie J. On a new arrangement of the right and left lobes of the liver. Proceedings – Anatomical Society of Great Britain and Ireland. 1897;32:4–9.