Sigma Metric Analysis
What happens when a hospital has multiple analyzers, "closed systems", "open systems" and "mixed systems"? When we use different analyzers, reagents, and calibrators, can we assume the results will always be comparable? NO. No, we can not.
In 2016, Clinical Biochemistry published a study evaluating the Sigma-metrics of the Beckman Coulter Olympus AU 680 using biological variation goals.
Recently, with the help of some Chinese laboratorians, we translated the studies of Sigma-metrics of several chemistry instruments.
In 2017, Clinical Chemistry published a study evaluating the trueness of 24 Serum Albumin methods.
Back in 2011, we took a look at the Olympus AU 2700 plus. In 2016, it's time to take a look at the more recent models, like the Olympus AU 5800.