Replies to This Discussion

Permalink Reply by Brent.Allsop on December 10, 2012 at 4:19pm

When you use your thigh, do you inset the same way / same angle?

Brent Allsop

Permalink Reply by Scott E on December 6, 2012 at 7:33am

Since there is a known lag between ISIGs and BGs, and a 0-5 minute gap between a BG reading and a sensor reading in which to sync it, (not to mention a 20% tolerance on BG readings itself), I believe that the algorithm attempts to account for this based on the next sensor/ISIG reading and perhaps even the one following that, to extrapolate backwards to meet the calibration seed.

I don't know exactly how it works, but I know that if you calibrate with a 146, your sensor reading doesn't immediately jump to a 146 - nor should it (it took me a long time to grasp that fact).

I will say that when I switched to the Contour NextLink meter, my sensor readings have been much closer to my actual fingerstick readings. I can only attribute that to an improved meter accuracy. I wrote about it a little bit here: http://wp.me/p2aBl3-vO

As an engineering/mathematics-minded person, I really would love to know the actual algorithm, though.

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