Biliary ultrasound: Difference between revisions
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*[[Ultrasound (Main)]] | *[[Ultrasound (Main)]] | ||
*[[Gallbladder Disease (Main)]] | *[[Gallbladder Disease (Main)]] | ||
*[[WES sign]] | |||
==Source== | ==Source== |
Revision as of 17:21, 7 May 2014
Technique
- Can use phased array or convex probe
- Look in midclavicular line at Right 11th/12th intercostal spaces or scan anteriorly from Morrison's pouch
- Patient in Left lateral decubitus (if can tolerate)
- Allow for better visualization of gallbladder (moves gallbladder anteriorly)
- Better visualization of gallstones
Findings
Evaluate gallbladder for:
- GB wall measurement
- Pericholecystic free fluid
- Gallstones
- Common Bile Duct (CBD) measurement
- Sonographic Murphy's (pain with ultrasound probe palpation over gallbladder)
Measurements
- GB wall is normally <3-4mm
- Measure the ant wall with a short-axis view
- Causes:
- 1. Acute cholecystitis
- 2. Ascites
- 3. CHF
- Gallstones
- identify by hypoechoic "shadowing" behind hyperechoic stones
- if no shadowing, may be polyps, sludge, etc.
- identify by hypoechoic "shadowing" behind hyperechoic stones
- Common Bile Duct
- Measure from inner to inner
- Normal is up to 4mm to age 40 (add 1mm per decade thereafter)
- Acalculous cholecystitis
- GB is >10cm long & >4 cm wide
See Also
Source
Sonoguide