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Optofluidic laser speckle image decorrelation analysis for the assessment of red blood cell storage

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  • Hee-Jae Jeon
  • Muhammad Mohsin Qureshi
  • Seung Yeob Lee
  • Euiheon Chung

Abstract

Red blood cells (RBCs) undergo irreversible biochemical and morphological changes during storage, contributing to the hemorheological changes of stored RBCs, which causes deterioration of microvascular perfusion in vivo. In this study, a home-built optofluidic system for laser speckle imaging of flowing stored RBCs through a transparent microfluidic channel was employed. The speckle decorrelation time (SDT) provides a quantitative measure of RBC changes, including aggregation in the microchannel. The SDT and relative light transmission intensity of the stored RBCs were monitored for 42 days. In addition, correlations between the decorrelation time, RBC flow speed through the channel, and relative light transmission intensity were obtained. The SDT of stored RBCs increased as the storage duration increased. The SDTs of the RBCs stored for 21 days did not significantly change. However, for the RBCs stored for over 35 days, the SDT increased significantly from 1.26 ± 0.27 ms to 6.12 ± 1.98 ms. In addition, we measured the relative light transmission intensity and RBC flow speed. As the RBC storage time increased, the relative light transmission intensity increased, whereas the RBC flow speed decreased in the microchannel. The optofluidic laser speckle image decorrelation time provides a quantitative measure of assessing the RBC condition during storage. Laser speckle image decorrelation analysis may serve as a convenient assay to monitor the property changes of stored RBCs.

Suggested Citation

  • Hee-Jae Jeon & Muhammad Mohsin Qureshi & Seung Yeob Lee & Euiheon Chung, 2019. "Optofluidic laser speckle image decorrelation analysis for the assessment of red blood cell storage," PLOS ONE, Public Library of Science, vol. 14(10), pages 1-14, October.
    • Handle: RePEc:plo:pone00:0224036
    DOI: 10.1371/journal.pone.0224036
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