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Performance assessment of high-density diffuse optical topography regarding source-detector array topology

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  • Hadi Borjkhani
  • Seyed Kamaledin Setarehdan

Abstract

Recent advances in optical neuroimaging systems as a functional interface enhance our understanding of neuronal activity in the brain. High density diffuse optical topography (HD-DOT) uses multi-distance overlapped channels to improve the spatial resolution of images comparable to functional magnetic resonance imaging (fMRI). The topology of the source and detector (SD) array directly impacts the quality of the hemodynamic reconstruction in HD-DOT imaging modality. In this work, the effect of different SD configurations on the quality of cerebral hemodynamic recovery is investigated by presenting a simulation setup based on the analytical approach. Given that the SD arrangement determines the elements of the Jacobian matrix, we conclude that the more individual components in this matrix, the better the retrieval quality. The results demonstrate that the multi-distance multi-directional (MDMD) arrangement produces more unique elements in the Jacobian array. Consequently, the inverse problem can accurately retrieve the brain activity of diffuse optical topography data.

Suggested Citation

  • Hadi Borjkhani & Seyed Kamaledin Setarehdan, 2020. "Performance assessment of high-density diffuse optical topography regarding source-detector array topology," PLOS ONE, Public Library of Science, vol. 15(3), pages 1-20, March.
    • Handle: RePEc:plo:pone00:0230206
    DOI: 10.1371/journal.pone.0230206
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    References listed on IDEAS

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    1. Alessio Paolo Buccino & Hasan Onur Keles & Ahmet Omurtag, 2016. "Hybrid EEG-fNIRS Asynchronous Brain-Computer Interface for Multiple Motor Tasks," PLOS ONE, Public Library of Science, vol. 11(1), pages 1-16, January.
    2. Gary E Strangman & Zhi Li & Quan Zhang, 2013. "Depth Sensitivity and Source-Detector Separations for Near Infrared Spectroscopy Based on the Colin27 Brain Template," PLOS ONE, Public Library of Science, vol. 8(8), pages 1-13, August.
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