Dual-wavelength OR-PAM with compressed sensing for cell tracking in a 3D cell culture system

  • Rou Xuan Huang
  • , Ying Fu
  • , Wang Liu
  • , Yu Ting Ma
  • , Bao Yu Hsieh
  • , Shu Ching Chen
  • , Mingjian Sun
  • , Pai Chi Li*
  • *Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

Monitoring dynamic interactions of T cells migrating toward tumor is beneficial to understand how cancer immunotherapy works. Optical-resolution photoacoustic microscope (OR-PAM) can provide not only high spatial resolution but also deeper penetration than conventional optical microscopy. With the aid of exogenous contrast agents, the dual-wavelength OR-PAM can be applied to map the distribution of CD8+ cytotoxic T lymphocytes (CTLs) with gold nanospheres (AuNS) under 523nm laser irradiation and Hepta1-6 tumor spheres with indocyanine green (ICG) under 800nm irradiation. However, at 1K laser PRF, it takes approximately 20 minutes to obtain a full sample volume of 160 × 160 × 150 μm3. To increase the imaging rate, we propose a random non-uniform sparse sampling mechanism to achieve fast sparse photoacoustic data acquisition. The image recovery process is formulated as a low-rank matrix recovery (LRMR) based on compressed sensing (CS) theory. We show that it could be stably recovered via nuclear-norm minimization optimization problem to maintain image quality from a significantly fewer measurement. In this study, we use the dual-wavelength OR-PAM with CS to visualize T cell trafficking in a 3D culture system with higher temporal resolution. Data acquisition time is reduced by 40% in such sample volume where sampling density is 0.5. The imaging system reveals the potential to understand the dynamic cellular process for preclinical screening of anti-cancer drugs.

Original languageEnglish
Title of host publicationPhotons Plus Ultrasound
Subtitle of host publicationImaging and Sensing 2018
EditorsLihong V. Wang, Alexander A. Oraevsky
PublisherSPIE
ISBN (Electronic)9781510614734
DOIs
StatePublished - 2018
Externally publishedYes
EventPhotons Plus Ultrasound: Imaging and Sensing 2018 - San Francisco, United States
Duration: 28 01 201801 02 2018

Publication series

NameProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume10494
ISSN (Print)1605-7422

Conference

ConferencePhotons Plus Ultrasound: Imaging and Sensing 2018
Country/TerritoryUnited States
CitySan Francisco
Period28/01/1801/02/18

Bibliographical note

Publisher Copyright:
© COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 3 - Good Health and Well-being
    SDG 3 Good Health and Well-being

Keywords

  • 3D Cell Culture
  • Compressed Sensing
  • Matrix Completion
  • Photoacoustic Microscopy
  • Sparse Sampling

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