Cholangitis ultrasound
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Farwa Haideri [2]
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Overview
Ultrasound
- Ultrasounds (US) may show dilation of the bile duct and identifies 38% of bile duct stones.[1]
- It is relatively poor at identifying stones further down the bile duct.
- An ultrasound is the primary imaging modality used to access patients with suspected acute cholangitis.[2]
- It is both sensitive and specific in detecting biliary dilatations.
- An US can show biliary dilatations with or without stones and debris material within the common bile duct.[3]
- However, biliary dilatations are not not always present at early stages of bile duct obsctructions, and the performance of an US in indicating choledocholithiasis is poor.[2]
- For patients who have previously not undergone a cholecystectomy, an US allows doctors to determine patients with high probability of having choledocholithiasis even if the stone is not directly visible on US.[2]
- A main finding of ascending cholangitis on an US is the thickening of the bile duct walls.[3]
- Ultrasound can help distinguish between cholangitis and cholecystitis (inflammation of the gallbladder), which has similar symptoms to cholangitis but appears differently on ultrasound.[1]
References
- ↑ 1.0 1.1 "Ascending cholangitis - Wikipedia, the free encyclopedia". Retrieved April 20, 2016.
- ↑ 2.0 2.1 2.2 Gallix BP, Aufort S, Pierredon MA, Garibaldi F, Bruel JM (2006). "[Acute cholangitis: imaging diagnosis and management]". J Radiol (in French). 87 (4 Pt 2): 430–40. PMID 16691174.
- ↑ 3.0 3.1 "Acute cholangitis | Radiology Reference Article | Radiopaedia.org".