Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2000-5-18
pubmed:abstractText
The standard enzyme-linked immunosorbent assay (ELISA) test for von Willebrand factor antigen (vWF-Ag), though sensitive and specific, does not deliver the flexibility to handle single sample assessments economically or provide rapid, emergency testing capability. The present study examined the performance characteristics of an immuno-turbidimetric assay kit (STA Liatest) modified for automation on the MDA(R)180 coagulation analyser using a supplied protocol. One hundred and sixteen patient samples were assessed by both the standard and the modified method. The correlation coefficient was 0.98 across the range of values 1-487 IU/dl. Above 200 IU/dl, where specimen dilution was indicated, there was greater diversity (r = 0.86) between the techniques. Plotting the difference between methods against the mean of both showed excellent agreement between methods below 100 IU/dl vWF. The intra-assay and interassay coefficients of variation were less than 3% at both low and normal range levels. The MDA(R)180 automated vWF assay merits consideration as an alternative to ELISA testing that provides random access and result availability within 30 min.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0141-9854
pubmed:author
pubmed:issnType
Print
pubmed:volume
22
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
29-32
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
2000
pubmed:articleTitle
Evaluation of the von Willebrand factor antigen (vWF-Ag) assay using an immuno-turbidimetric method (STA Liatest vWF) automated on the MDA 180 coagulometer.
pubmed:affiliation
Oxford Haemophilia Centre, Churchill Hospital, Headington, Oxford, UK.
pubmed:publicationType
Journal Article, Comparative Study