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Sensors (Basel). 2010;10(7):6751-72. doi: 10.3390/s100706751. Epub 2010 Jul 12.

"Smart" continuous glucose monitoring sensors: on-line signal processing issues.

Author information

1
Department of Information Engineering, University of Padova, Via Gradenigo 6/B, 35131 Padova, Italy. gianni@dei.unipd.it

Abstract

The availability of continuous glucose monitoring (CGM) sensors allows development of new strategies for the treatment of diabetes. In particular, from an on-line perspective, CGM sensors can become "smart" by providing them with algorithms able to generate alerts when glucose concentration is predicted to exceed the normal range thresholds. To do so, at least four important aspects have to be considered and dealt with on-line. First, the CGM data must be accurately calibrated. Then, CGM data need to be filtered in order to enhance their signal-to-noise ratio (SNR). Thirdly, predictions of future glucose concentration should be generated with suitable modeling methodologies. Finally, generation of alerts should be done by minimizing the risk of detecting false and missing true events. For these four challenges, several techniques, with various degrees of sophistication, have been proposed in the literature and are critically reviewed in this paper.

KEYWORDS:

calibration; diabetes; filtering; model; prediction; time-series

PMID:
22163574
PMCID:
PMC3231130
DOI:
10.3390/s100706751
[Indexed for MEDLINE]
Free PMC Article
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