Murine model of oropharyngeal gastric fluid aspiration-A new assessment method for intrapulmonary liquid distribution using digital pixel calculation.

Journal Article (Journal Article)

AIM OF THE STUDY: The aim of this study was to investigate a new method for visualization and quantification of intrapulmonary liquid distribution after oropharyngeal gastric fluid aspiration in mice. MATERIAL AND METHODS: Eleven mice received oropharyngeal aspiration with a gastric fluid, India ink, and saline solution. Digital imaging and pixel calculation were used to analyze intrapulmonary fluid distribution selectively. RESULTS: Digital pixel analysis and orophanryngeal aspiration are both safe techniques in mice and deliver reproducible/valid results. Analysis revealed an average aspirate distribution of 86.8% of the total lung area. The proportional amount of the left lung was significantly greater than that of the right lung (P = 0.023). The lobe with the lowest mean distribution was the right lower lobe (79.2% ± 4.4%). CONCLUSION: Digital pixel calculation is a reliable method for quantitative, macroscopic evaluation of fluid distribution in the lung. This method is a useful tool for training purposes and it can be used to ensure interinvestigator reproducibility.

Full Text

Duke Authors

Cited Authors

  • Beinart, D; Finn, SMB; Scheuermann, U; Holzknecht, ZE; Barbas, AS; Parker, W; Lin, SS

Published Date

  • 2017

Published In

Volume / Issue

  • 43 / 9-10

Start / End Page

  • 434 - 438

PubMed ID

  • 29252074

Electronic International Standard Serial Number (EISSN)

  • 1521-0499

Digital Object Identifier (DOI)

  • 10.1080/01902148.2017.1397822


  • eng

Conference Location

  • England