Segmental Anatomy Of Liver

Liver segmentation is usually described according to the couinaud classification which divides the liver into eight functionally independent segments s1s8 based on third order portal vein distribution. Porta hepatis is seen with an oblique angle 45degree rotation from the sagittal view to the transverse view.

The Liver Thoracic Key

In the centre of each segment there is a branch of the portal vein hepatic artery and bile duct.

Segmental anatomy of liver. Segmental anatomy of the liver according to couinaud and bismuth. 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. Hover over the images for highlighted anatomy.

Segmental liver anatomy segmental liver anatomy the couinaud classification divides the liver into 8 functional segments. The caudate lobe is a separate structure which receives blood flow from both the right and left sided vascular branches. Proximal phalanx of 3rd finger right superior anterior segment segment viii.

Segmental anatomy according to couinaud. The ligamentum venosum is highlighted in orange. Proximal phalanx of 4th finger right superior posterior segment segment vii.

It is the preferred anatomy classification system as it divides the liver into eight independent functional units ter. Inferior and two posterior superior segments respectively. 7 the middle hepatic vein divides the liver into left and right lobes.

The couinaud classification of liver anatomy divides the liver into eight functionally independent segments. Distal phalanx of 4th finger right inferior posterior segment segment vi. Each segment has its own vascular inflow outflow and biliary drainage.

The most widely used classification is that described by claude couinaud a french surgeon. Each segment has its own vascular inflow outflow and biliary drainage. Segmental anatomy of the liver an understanding of the segmental anatomy is now an essential part of the ultrasound examination of the liver.

Segmental anatomy of liver. The differences were assessed quantitatively in five of the 10 livers. The common usage of the couinaud nomenclature allows for more accurate surgical planning and improved consistent.

Similarly the left hemiliver comprises a left paramedian sector and a left lateral sector which are further sub divided into anterior inferior and posterior superior segments. Oblique left showing the ligamentum teres. The couinaud classification of liver anatomy divides the liver into eight functionally indepedent segments.

The left portal vein supplies couinaud segments i ii iii and iv. Ct anatomic findings were compared with authentic anatomic territories seen at anatomic examination. Liver segmental and subsegmental anatomy were determined on the ct scans according to customary radiologic practice guidelines.

The couinaud classification pronounced kwee no is currently the most widely used system to describe functional liver anatomy.

The Radiology Assistant Liver Segmental Anatomy