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Sigma Metric Analysis
Roche Integra 400+ E-mail
Written by Sten Westgard   

Continuing in our series on translating method validation studies into Six Sigma metrics, we examine a Roche Integra 400+ chemistry analyzer, with data provided by St. Joseph Hospital in Houston, Texas. The results are stunning.

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Sigma Estimates: High Volume Hematology E-mail
Written by Sten Westgard, MS   

Working with CAP Today's recent survey of High Volume Hematology Analyzers, we convert the manufacturer precision claims into Six Sigma estimates. Want to see how the instruments shape up?

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WBC on a SE 9500 E-mail
Written by Sten Westgard   

Are things better or worse in hematology than in chemistry? Data from a recent AACC conference poster reveals more good news...

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Vitros 5.1 E-mail
Written by Sten Westgard, MS   

A poster from the 2005 AACC convention provides us with a great set of data on CV and bias for a new chemistry instrument. From that data, we can evaluate the Sigma performance and the QC required by the instrument. We can even compare the new instrument with Sigma metrics from other competing instruments.

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Unicel DxC 800 E-mail
Written by Sten Westgard, MS   

We highlight a poster from the 2005 AACC/ASCLS/IFCC conference, "Evaluation of the Beckman Coulter UniCel DxC 800 Synchron Clinical System", (H. Stiegler, A. Breuer, A. Pozun, M. Krieg). The data provided in this evaluation can be converted into Sigma metrics. Please Login (at right) or Register to view article

 
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