Faculty Collaboration Database

Effect of hemoglobin concentration variation on the accuracy and precision of glucose analysis using tissue modulated, noninvasive, in vivo Raman spectroscopy of human blood: a small clinical study. J Biomed Opt 2005;10(3):031111

Date

10/19/2005

Pubmed ID

16229636

DOI

10.1117/1.1922147

Scopus ID

2-s2.0-27744579271 (requires institutional sign-in at Scopus site)   2 Citations

Abstract

Tissue modulated Raman spectroscopy was used noninvasively to measure blood glucose concentration in people with type I and type II diabetes with HemoCue fingerstick measurements being used as reference. Including all of the 49 measurements, a Clarke error grid analysis of the noninvasive measurements showed that 72% were A range, i.e., clinically accurate, 20% were B range, i.e., clinically benign, with the remaining 8% of measurements being essentially erroneous, i.e., C, D, or E range. Rejection of 11 outliers gave a correlation coefficient of 0.80, a standard deviation of 22 mg/dL with p<0.0001 for N=38 and places all but one of the measurements in the A and B ranges. The distribution of deviations of the noninvasive glucose measurements from the fingerstick glucose measurements is consistent with the suggestion that there are at least two systematic components in addition to the random noise associated with shot noise, charge coupled device spiking, and human factors. One component is consistent with the known variation of fingerstick glucose concentration measurements from laboratory reference measurements made using plasma or whole blood. A weak but significant correlation between the deviations of noninvasive measurements from fingerstick glucose measurements and the test subject's hemoglobin concentration was also observed.

Author List

Chaiken J, Finney W, Knudson PE, Weinstock RS, Khan M, Bussjager RJ, Hagrman D, Hagrman P, Zhao Y, Peterson CM, Peterson K

Author

Paul Knudson MD Associate Professor in the Medicine department at Medical College of Wisconsin

MESH terms used to index this publication - Major topics in bold

Adult
Aged
Artifacts
Biomarkers
Blood Chemical Analysis
Blood Glucose
Blood Glucose Self-Monitoring
Diabetes Mellitus
Female
Hemoglobins
Humans
Male
Middle Aged
Reproducibility of Results
Sensitivity and Specificity
Spectrum Analysis, Raman