Estimating weak ratiometric signals in imaging data. II. Meta-analysis with multiple, dual-channel datasets.
Ratiometric fluorescent indicators are used for making quantitative measurements of a variety of physiological variables. Their utility is often limited by noise. This is the second in a series of papers describing statistical methods for denoising ratiometric data with the aim of obtaining improved quantitative estimates of variables of interest. Here, we outline a statistical optimization method that is designed for the analysis of ratiometric imaging data in which multiple measurements have been taken of systems responding to the same stimulation protocol. This method takes advantage of correlated information across multiple datasets for objectively detecting and estimating ratiometric signals. We demonstrate our method by showing results of its application on multiple, ratiometric calcium imaging experiments.
Sornborger
Andrew
A
Department of Mathematics and Faculty of Engineering, University of Georgia, AThens, GA 30602, USA. ats@math.uga.edu
Broder
Josef
J
Majumder
Anirban
A
Srinivasamoorthy
Ganesh
G
Porter
Erika
E
Reagin
Sean S
SS
Keith
Charles
C
Lauderdale
James D
JD