In vitro investigation of the origin of echoes within biliary sludge
β Scribed by Roy A. Filly; Bruce Allen; Michael J. Minton; Robin Bernhoft; Lawrence W. Way
- Publisher
- John Wiley and Sons
- Year
- 1980
- Tongue
- English
- Weight
- 797 KB
- Volume
- 8
- Category
- Article
- ISSN
- 0091-2751
No coin nor oath required. For personal study only.
β¦ Synopsis
Abstract
To investigate the origin of echoes from βbiliary sludge,β concentrated bile and bile from 5 patients with ultrasound findings of biliary sludge were examined in a tissueβequivalent phantom before and after filtration through progressively smaller pore sizes. Filtration converted echogenic bile to echoβfree bile. Examination of the filtration residue by light microscopy established that the source of echoes in biliary sludge was particles, predominantly pigment granules, with lesser amounts of cholesterol crystals. Partial chemical characterization by determination of vulnerability to different solvents verified that the sludge was mainly calcium bilirubinate.
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