Liver Ultrasound Protocol 

Liver Protocol basics.
The liver is the largest organ in the body, the right lobe is 5-6 times larger than the left.
Normally measures about 15cm at mid clavicular line in adults, there is much variation in pediatric populations by age and charts do exist.
The liver is covered by a layer of connective tissue referred to as Glisson's capsule. The liver is normally more echogenic then the renal cortex.The liver is drained by the hepatic veins of which there is usually 3, Left, Middle and Right. They connect to the IVC which drain into the right atrium.
The liver is fed oxygenated blood by the hepatic artery and portal vein.
Excellent article detailing Couinad's segmental liver anatomy
The Radiology Assistant : Anatomy of the liver segments
www.radiologyassistant.nl/en/p4375bb8dc241d/anatomy-of-the-liver-segments.html