Lecture 6 Flashcards
Largest organ in the abdomen
Liver
What covers the liver and what is it made of
Glisson’s capsule
Thin connective layer
Where is the glissons capsule thickets
Around the IVC
Live is intra or retro
Intra except around bare area
Where does margin does the majority of the liver lie beneath
Right costal margin
2 main surfaces of the liver
Anterior (parietal)
Posterior/inferior (visceral)
What landmarks do we use to divide the liver into different parts
Fissure
Ligaments
Vasculature
3 fissures of the liver
Main lobar fissure
Left intersegmental fissure
Right intersegmental fissure
7 liver ligaments
Falciform Teres/ round Ligamentum venosum Hepatodoudenal Gastroheptic Coronary Right and left triangular
Falciform ligament divides…
Liver into L and R lobe
Ligamentum teres divides …
Medial and lateral portion of left lobe
What covers the porta hepatic enterance to the liver
Hepatoduodenal ligament
What connets lesser stomach to liver
Gastohepatic ligament
What connects anterior liver to diaphragm
Coronary ligament
What connects liver to body wall
R and L triangular
Where is the bare area located
Posterior sup aspect of the liver
Hepatic veins size and wall comparable to the PV?
Yes
Intersegmental (PV or HV)
Defines between borders (HV)
Intrasegmental
Borders between unclear (PV)
Length of the midclavicular line for the right lobe
13-17 cm
Echotexture of liver
Homogenous
Echogenicity
Echogenic
Hyperechoic or isoechoic to renals
Hypoechoic to the spleen
Contour of liver
Smooth
Left lobe is shaped
Triangular
Right lobe
Varies
Positions to scan liver
Supine
Left lateral
Subcostal means
Under rivs
Intercostal means
Between ribs
What frequency transduce do we use for liver
Use 3.5-5 MHZ
How long does patient need to fast before liver scan
6 to 8 hours
