Animated summary of 3-D Liver Anatomy

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Surface Anatomy Landmarks

Surface Projection of the liver

showing the umbilical fissure, gallbladder fossa, inferior vena cava (ivc), and gallbladder. Within the umbilical fissure, reside the falciform ligament, ligamentum teres, and ligamentum venosum (these structures are not visible in these movies because they are below the resolution of CT data).

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Surface Projection of the liver

showing a vertical plane intersecting the gallbladder fossa and inferior vena cava defining the right and left lobes of the liver.

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Surface Projection of the liver

showing two vertical planes -- a plane intersecting the gallbladder fossa and inferior vena cava defining the right and left lobes of the liver and a plane along the falciform ligament defining the lateral and medial liver segments of the left lobe.

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Eight-Segment View of Liver Anatomy

MIPs of the Liver

Maximum Intensity Projection of the liver

showing the inferior vena cava, hepatic and portal veins, umbilical fissure, and gallbladder. The vascular inflow is provided by the portal veins and hepatic arteries (latter not seen). The hepatic veins provide the vascular outflow to the Inferior Vena Cava.

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Right Hepatic Vein Plane

Maximum Intensity Projection of the liver
showing a plane intersecting the right hepatic vein.

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Middle Hepatic Vein Plane

Maximum Intensity Projection of the liver
showing plane intersecting the middle hepatic vein.

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Left Hepatic Vein Plane

Maximum Intensity Projection of the liver
showing plane intersecting the left hepatic vein.

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Portal Vein Plane

Maximum Intensity Projection of the liver
showing plane intersecting the right and left portal veins.

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The 8 Segments

Surface Projection of the liver
showing the vascular planes projected onto the surface of the liver thus providing the borders between the 8 Couinaud segments.

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Anterior and posterior view of liver showing 3-dimensional reconstructions of helical CT scan data in shaded surface projections which have been segmented according to the Couinaud classification.

Shaded-Surface 3D reconstructions of the liver segments viewed in the transverse plane at the level of the rostral part of the liver and inferiorly from the caudal surface.

The Caudate Lobe

Closeup shaded-surface view of the posterior aspect of the liver and the caudate lobe. It is bounded laterally by the fissure for the ligamentum venosum and medially by the IVC.

Ultrasound Correlation

Above is the ultrasonographic view of the portal branches to the Couinaud segmetns 5, 6, 7, and 8 obtained when the probe is viewing sagitally from position A shown of the 3D line drawing.

Above is the ultrasonographic view of the portal vessels locating the central portions of the Couinaud segments of the left liver lobe. This view is obtained when the transducer is viewing transversely from position B in the line drawing.

Above is the ultrasonographic view of the confluence of the right (rhv), middle (mhv), and left (lhv) hepatic veins with the IVC.

Last modified: Wed Jun 2 11:50:32 CDT