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Von Willebrand Disease (VWD)
Part 3: VWF Activity Assay

A New von Willebrand Factor Activity Assay and Testing Algorithm



VWF:Lx and VWF:RCo Method Comparison

Slide 12

June 2011

We included a total of 492 samples for this validation study. 168 samples were from Mayo Clinic patients and the rest were consultation samples from Mayo Medical Laboratories. We compared VWF latex activity method with the reference VWF ristocetin cofactor activity assay by light transmission platelet aggregation. VWF latex activity assay has very good linear correlation with VWF ristocetin cofactor activity assay with R square at 0.93.

VWF:Lx and VWF:RCo Method Comparison

 


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