4D in vivo imaging of subpleural lung parenchyma by swept source optical coherence tomography

Research output: Contribution to book/conference proceedings/anthology/reportConference contributionContributedpeer-review

Contributors

Abstract

In this feasibility study we present a method for 4D imaging of healthy and injured subpleural lung tissue in a mouse model. We used triggered swept source optical coherence tomography with an A-scan frequency of 20 kHz to image murine subpleural alveoli during the ventilation cycle. The data acquisition was gated to the pulmonary airway pressure to take one B-scan in each ventilation cycle for different pressure levels. The acquired B-scans were combined offline to one C-scan for each pressure level. Due to the high acquisition rate of the used optical coherence tomography system, we are also able to perform OCT Doppler imaging of the alveolar arterioles. We demonstrated that OCT is a useful tool to investigate the alveolar dynamics in spatial dimensions and to analyze the alveolar blood flow by using Doppler OCT.

Details

Original languageEnglish
Title of host publicationOptical Coherence Tomography and Coherence Techniques IV
Publication statusPublished - 2009
Peer-reviewedYes

Publication series

SeriesProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume7372
ISSN1605-7422

Conference

TitleOptical Coherence Tomography and Coherence Techniques IV
Duration14 - 17 June 2009
CityMunich
CountryGermany

External IDs

ORCID /0000-0003-0554-2178/work/142249829
ORCID /0000-0003-2292-5533/work/142256568

Keywords

Keywords

  • Acute lung injury, Alveolar dynamics, Lung mechanics, Optical coherence tomography