Document Detail

Buoyancy of gallstones in varying concentrations of contrast media.
MedLine Citation:
PMID:  6610336     Owner:  NLM     Status:  MEDLINE    
Gallstones from 100 patients were tested for buoyancy in four concentrations of contrast materials commonly used in the biliary tree. In 7 1/2% iodine, fully 68% of the patients' stones floated; in 15% iodine, 82% floated; in 30% iodine, 93% floated; and in 38% iodine, 95% floated. This can lead to confusion with bubbles of air, either when stones are mechanically or hydraulically dislodged or when simple buoyancy of high concentrations of iodine floats stones from their usual location held by accretions and inflammatory reaction in the distal common duct. When floating stones are a problem, as often occurs during percutaneous stone removal, substitution of the most dilute contrast material visible and the use of very low kilovoltage should help in one-fourth of cases.
W C Culp
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  AJR. American journal of roentgenology     Volume:  143     ISSN:  0361-803X     ISO Abbreviation:  AJR Am J Roentgenol     Publication Date:  1984 Jul 
Date Detail:
Created Date:  1984-07-19     Completed Date:  1984-07-19     Revised Date:  2008-02-15    
Medline Journal Info:
Nlm Unique ID:  7708173     Medline TA:  AJR Am J Roentgenol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  79-81     Citation Subset:  AIM; IM    
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MeSH Terms
Cholelithiasis / radiography*
Contrast Media / administration & dosage*
Diatrizoate Meglumine / administration & dosage
Specific Gravity
Reg. No./Substance:
0/Contrast Media; 131-49-7/Diatrizoate Meglumine

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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