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41 Cards in this Set
- Front
- Back
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gallbladder location |
fossa on posteriorinferior portion of liver |
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identifying landmark |
main lobar fissure |
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gallbladder shape |
oval, conical, gord-like, pear shaped |
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three segments of gallbladder |
fundus body neck |
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Neck is in the fixed position at |
main lobar fissure
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body and fundus are _________ in position |
variable |
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Normal Length of GB |
7-10cm SAG 3cm RV |
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GB volume = |
LxWxH x.52 |
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Abnormal size GB |
no longer tear drop shaped in SAG but rounded RV diameter exceeds 5 cm Enlarged |
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connects neck of GB to common hepatic duct |
cystic duct |
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cystic duct is __________ to GB neck |
superior |
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found within cystic duct control inward & outward flow of bile keep duct from kinking may cause refractive artifactual shadowing |
Spiral Valves of Heister |
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duodenal papilla forms opening into duodenum |
Ampulla of Vater |
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Ampulla of vater the spinchter of oddi controls |
flow of bile and pancreatic juices into duodenum |
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order of vessels posterior to aterior |
IVC portal vein hepatic artery bile duct |
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function of the GB |
to store bile |
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what does bile do |
emulsifier that breaks down fats |
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bile is made up of |
bile salts, cholesterol and small amount of bilirubin |
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bile is controled by a contraction called |
cholecystokinin |
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__________ is the main pigment found in bile |
bilirubin |
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bilirubin is produced by |
breakdown of hemoglobin |
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bile duct function is to |
store & concentrate bile, deliver it to duodenum |
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Normal Length common bile duct |
1-4 mm 4-6mm grey area add 1 mm past 60 years up to 10 mm s/p cholecystectomy |
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Increase in ____________ bilirubin indicates mechanical obstruction to flow |
direct |
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increase in ___________ bilirubin indicates hepatic damage or pre-hepatic problem |
indirect |
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a lab value of increase in ___________ indicates mechanical obstruction to flow of bilirubin |
serum alkaline phosphatase |
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fold between fundus and body of GB |
phrygian
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fold between body and infundibulum of GB |
junctional fold |
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rare varients of GB biliary tree |
Duplication agnesis septations |
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US appearance of normal GB |
lumen is anechoic, wall is pencil thin length is no greater than 3mm |
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Wall measurements of GB are taken in |
TRV of anterior wall |
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transducers used for GB imaging___________ transducer footprint___________ transducer focus__________ transducer placement______________ |
3.0MHZ or 3.5MHZ for Normal PT
5.0 for thin PT small for intercostal scanning single focus subcostal or intercostal |
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gain should be______ Lumen should be______
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turned down
anechoic |
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pitfalls include
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Anterior of L Portal can look like GB
Gain too high incomplete survey fold can mimic pathology S/P cholecystectomy: image GB fossa |
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Always measure the ______ of the duct |
lumen |
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Measure the duct at its __________ point |
widest |
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CHD is __________ to hepatic ART CBD is ___________ to hepatic ART |
superior inferior |
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distal CBD is found in |
posterolateral head of pancreas |
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distal most portion of CBD is found in |
head of pancreas |
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Distal CBD can measure up to |
7mm |
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R & L hepatic ducts are found |
anterior to right & left portal veins |
