• Medientyp: E-Artikel
  • Titel: High-density diffuse correlation tomography with enhanced depth localization and minimal surface artefacts
  • Beteiligte: Paul, Ria; Murali, K.; Varma, Hari M.
  • Erschienen: Optica Publishing Group, 2022
  • Erschienen in: Biomedical Optics Express
  • Sprache: Englisch
  • DOI: 10.1364/boe.469405
  • ISSN: 2156-7085
  • Schlagwörter: Atomic and Molecular Physics, and Optics ; Biotechnology
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  • Beschreibung: <jats:p>A spatially weighted filter applied to both the measurement and the Jacobian is proposed for high-density diffuse correlation tomography (DCT) to remove unwanted extracerebral interferences and artefacts along with better depth localization in the reconstructed blood flow images. High-density DCT is implemented by appropriate modification of recently introduced Multi-speckle Diffuse Correlation Spectroscopy (M-DCS) system. Additionally, we have used autocorrelation measurements at multiple delay-times in an iterative manner to improve the reconstruction results. The proposed scheme has been validated by simulations, phantom experiments and <jats:italic toggle="yes">in-vivo</jats:italic> human experiments.</jats:p>
  • Zugangsstatus: Freier Zugang