Author/Editor     Božič, Mojca; Stegnar, Mojca
Title     Validation of an automated immunoturbidimetric assay for measurement of plasma D-dimer
Type     članek
Source     Clin Chem Lab Med
Vol. and No.     Letnik 41, št. 7
Publication year     2003
Volume     str. 958-62
Language     eng
Abstract     The performance characteristics and diagnostic accuracy of a new rapid automated quantitative immunoturbidimetric D-dimer assay, Auto-Dimer (Biopool, Umea, Sweden) were evaluated in a population of 135 outpatients with suspected deep-vein thrombosis of a lower limb. Enzyme-linked immunosorbent assay was used as the reference method. The Auto-Dimer assay showed good reproducibility. The correlation between Auto-Dimer and enzyme-linked immunosorbent assay was high (r = 0.91, p < 0.05) and agreement in classifying patients above or below the cut-off was good IK coefficient 0.74, 95% CI 0.62-0.86). At a cut-off of 340 micro g/I the sensitivity and specificity of Auto-Dimer were high (100% and 61%, respectively). These data show that Auto-Dimer is a reliable screening test for exclusion of deep-vein thrombosis. The assay could be included in prospective patient management studies in order to obtain further information on its clinical usefulness.
Descriptors     DIMERIZATION
VEINS
THROMBOSIS
NEPHELOMETRY AND TURBIDIMETRY
ANTIBODIES, MONOCLONAL
CALIBRATION
SENSITIVITY AND SPECIFICITY
ENZYME-LINKED IMMUNOSORBENT ASSAY