The couinaud classification of liver anatomy divides the liver into eight functionally independent segments. Vascular casts of 10 livers were examined with helical computed tomography ct.
Stepwise Evaluation Of Liver Sectors And Liver Segments By
Taken from our abdominal ultrasound essentials course this short video covering liver anatomy packs a powerful punch.
Liver segmental anatomy. Although the segmental localization of the targeted tumor bile duct and vessel in the liver is important to complete these procedures little information is available regarding hepatic segmental anatomy on eus. The couinaud classification pronounced kwee no is currently the most widely used system to describe functional liver anatomy. 7 the middle hepatic vein divides the liver into left and right lobes.
Proximal phalanx of 3rd finger right superior anterior segment segment viii. The hepatic veins are found at the periphery of each segment whereas the center has branches of the portal veins hepatic arteries and bile ducts. The traditional morphological anatomy is based on the external appearance of the liver and does not show the internal features of vessels and biliary ducts.
Each segment has its own vascular inflow outflow and biliary drainage. In the centre of each segment there is a branch of the portal vein hepatic artery and bile duct. The liver can be visualized with eus by transgastric and transduodenal scanning and the eus determination of segmental location can.
The left portal vein supplies couinaud segments i ii iii and iv. It is the preferred anatomy classification system as it divides the liver into eight independent functional units termed segments rather than relying on the traditional morphological description based on the external appearance of the liver. Segmental liver anatomy segmental liver anatomy the couinaud classification divides the liver into 8 functional segments.
Dr nikolaus mayr will take you on a fast paced journey in and around the. Segmental anatomy of liver. Liver ultrasound showing education liver segments normal liver anatomy portal vein hepatic veins the biliary tree and ultrasound scanning protocol worksheets.
The right portal vein subdivides into anterior and posterior branches. Liver segmental anatomy hisham alkhatib md. The couinaud classification of liver anatomy divides the liver into eight functionally indepedent segments.
Liver anatomy can be described using two different aspects. Morphological anatomy and functional anatomy. Each segment has its own vascular inflow outflow and biliary drainage.
To evaluate qualitatively and quantitatively the current procedures for radiologic delineation of the segmental and subsegmental anatomy of the liver. In the centre of each segment there is a branch of the portal vein hepatic artery and bile duct.
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