Diagnostic Ultrasound - Abdomen and Pelvis

Biliary System
Right rectus muscle
LEFT HEPATIC LOBE
Anatomy: Abdomen
Portal triad
Portal triad
Left hepatic vein
Inferior vena cava
Rectus musculature
Portal triad
Left hepatic vein
Left hepatic lobe
Portal triad
Inferior vena cava
Gallbladder
Portal vein
Heart
(Top) Subxiphoid, transverse grayscale ultrasound of the left hepatic lobe shows the left hepatic vein and several portal triads. The
portal triads are identified by the prominent echogenic walls of the portal veins. The portal triad contains a portal vein, a bile duct, and
a hepatic artery. The hepatic artery and bile duct are not readily visible unless they are dilated. (Bottom) Longitudinal ultrasound of the
left hepatic lobe near the confluence of the left hepatic vein with the inferior vena cava is shown. Portal triads are recognizable by the
prominent walls of the portal veins.
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