tests for hbsag quantification

[stef2011]

http://archive.mail-list.com/hbv_research/message/20110523.155321.9e412def.en.html

there is also a third new assay called hbsag roches quant

Serum Hepatitis B surface Antigen (HBsAg) levels correlate with hepatitis B virus intrahepatic covalently closed circular DNA and may predict response to treatment. Currently, 2 commercial platforms are available for HBsAg quantification in clinical practice, the Architect HBsAg QT and the Elecsys HBsAg. We aimed to directly compare the results of these assays.

Conclusions
There is a high correlation and close agreement between quantitative HBsAg measurements conducted with the Architect and the Elecsys. Clinical prediction rules derived from data from one platform can be applied on the other; both can therefore be used in clinical practice.

[stef2011]

proably Elecsys and roches hbsag quant are the same or hbsag roches quant is a new  assays not already on the market

[StephenCastlecrag]

Isn't Elecsys a product of Roche? I think Architect is Abbott's. What is this new assay "roches quant"?

Thanks.