Evidence map›Paper›PMID 22029358›Full record

ArticleJournal of biomedical optics2011

Investigating in vivo airway wall mechanics during tidal breathing with optical coherence tomography.

Claire Robertson, Sang-Won Lee, Yeh-Chan Ahn, Sari Mahon, Zhongping Chen, Matthew Brenner, Steven C George

Abstract readValidation Study
In one paragraph

Article in Journal of biomedical optics, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

8 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Multi-modal anatomical Optical Coherence Tomography and CT forProceedings of SPIE--the International Society for Optical Engineering · 2017
    Article
  7. Review
  8. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Claire RobertsonUniversity of California, Irvine, Department of Biomedical Engineering, Irvine, California 92697, USA.
Sang-Won Lee
Yeh-Chan Ahn
Sari Mahon
Zhongping Chen
Matthew Brenner
Steven C George

Funding

WOUND MIGRATION FORCE MONITORINGP41RR001192 · NCRR · UNIVERSITY OF CALIFORNIA-IRVINE · PI CHOI, BERNARD · 1985 to 2011
$14.2M
Mechanisms of Subepithelial Fibrosis in AsthmaR01HL067954 · NHLBI · UNIVERSITY OF CALIFORNIA-IRVINE · PI GEORGE, STEVEN CARL · 2003 to 2012
$3.7M
High Resolution Optical Coherence Tomography for Early Airway Cancer DetectionR01CA124967 · NCI · UNIVERSITY OF CALIFORNIA-IRVINE · PI BRENNER, MATTHEW · 2007 to 2011
$1.3M
NCI NIH HHS 5R01CA124967NCI NIH HHS R01 CA124967NCRR NIH HHS P41 RR001192NHLBI NIH HHS R01 HL067954NHLBI NIH HHS R01HL067954
6 · The paper itself

Abstract

Optical coherence tomography (OCT) is a nondestructive imaging technique offering high temporal and spatial resolution, which makes it a natural choice for assessing tissue mechanical properties. We have developed methods to mechanically analyze the compliance of the rabbit trachea in vivo using tissue deformations induced by tidal breathing, offering a unique tool to assess the behavior of the airways during their normal function. Four-hundred images were acquired during tidal breathing with a custom-built endoscopic OCT system. The surface of the tissue was extracted from a set of these images via image processing algorithms, filtered with a bandpass filter set at respiration frequency to remove cardiac and probe motion, and compared to ventilatory pressure to calculate wall compliance. These algorithms were tested on elastic phantoms to establish reliability and reproducibility. The mean tracheal wall compliance (in five animals) was 1.3±0.3×10(-5) (mm Pa)(-1). Unlike previous work evaluating airway mechanics, this new method is applicable in vivo, noncontact, and loads the trachea in a physiological manner. The technique may have applications in assessing airway mechanics in diseases such as asthma that are characterized by significant airway remodeling.

Indexed as

AlgorithmsAnimalsHumansImage Processing, Computer-AssistedLung ComplianceMaleModels, AnimalOptical PhenomenaPhantoms, ImagingRabbitsRespiratory MechanicsTidal VolumeTomography, Optical CoherenceTrachea

Identifiers

PMID22029358
PMCPMC3210193

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.