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3 September 2015 Dynamic phase differences based on quantitative phase imaging for the objective evaluation of cell behavior
Aneta Křížová, Jana Čolláková, Zbynek Dostal, Lukas Kvasnica, Hana Uhlirova, Tomáš Zikmund, Pavel Veselý, Radim Chmelik
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Journal of Biomedical Optics, Vol. 20, Issue 11, 111214 (September 2015). https://doi.org/10.1117/1.JBO.20.11.111214
Abstract
Quantitative phase imaging (QPI) brought innovation to noninvasive observation of live cell dynamics seen as cell behavior. Unlike the Zernike phase contrast or differential interference contrast, QPI provides quantitative information about cell dry mass distribution. We used such data for objective evaluation of live cell behavioral dynamics by the advanced method of dynamic phase differences (DPDs). The DPDs method is considered a rational instrument offered by QPI. By subtracting the antecedent from the subsequent image in a time-lapse series, only the changes in mass distribution in the cell are detected. The result is either visualized as a two-dimensional color-coded projection of these two states of the cell or as a time dependence of changes quantified in picograms. Then in a series of time-lapse recordings, the chain of cell mass distribution changes that would otherwise escape attention is revealed. Consequently, new salient features of live cell behavior should emerge. Construction of the DPDs method and results exhibiting the approach are presented. Advantage of the DPDs application is demonstrated on cells exposed to an osmotic challenge. For time-lapse acquisition of quantitative phase images, the recently developed coherence-controlled holographic microscope was employed.
Krizova, Collakova, Dostal, Kvasnica, Uhlirova, Zikmund, Vesely, and Chmelik: Dynamic phase differences based on quantitative phase imaging for the objective evaluation of cell behavior
© 2015 Society of Photo-Optical Instrumentation Engineers (SPIE) 1083-3668/2015/$25.00 © 2015 SPIE
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Aneta Křížová, Jana Čolláková, Zbynek Dostal, Lukas Kvasnica, Hana Uhlirova, Tomáš Zikmund, Pavel Veselý, and Radim Chmelik "Dynamic phase differences based on quantitative phase imaging for the objective evaluation of cell behavior," Journal of Biomedical Optics 20(11), 111214 (3 September 2015). https://doi.org/10.1117/1.JBO.20.11.111214
Published: 3 September 2015
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Cited by 7 scholarly publications.
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KEYWORDS
Phase imaging
Visualization
Holography
Image processing
Phase shifts
Image segmentation
Holograms
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