Morphometric analysis for early detection of changes in cellular structure in a toxicological experiment.

Published

Journal Article

This paper presents a method for semi-automatic analysis of morphometry in image cytometry studies. We examine morphological changes in neuroblastoma cells caused by a toxin. Nuclei are automatically recognized from images using a constrained seeded region growing algorithm. The shape of the nuclei is quantified by fitting ellipses to the identified regions. Features such as centroids, elongation, orientation and size are extracted from this fitting process. Under certain assumptions, it is demonstrated that the log elongation measurement has an asymptotically normal distribution whose variance is dependent only on object size. This allows weighted linear models to be fitted to elongation measurements. Hypothesis tests show that over time, there is a significant elongation due to application of the toxin. The other variables are not significant, but there is a significant 'image' effect. The scientific implications of these findings are considered.

Full Text

Duke Authors

Cited Authors

  • Crotty, S; Roy Choudhury, K

Published Date

  • December 20, 2007

Published In

Volume / Issue

  • 26 / 29

Start / End Page

  • 5253 - 5266

PubMed ID

  • 17503546

Pubmed Central ID

  • 17503546

International Standard Serial Number (ISSN)

  • 0277-6715

Digital Object Identifier (DOI)

  • 10.1002/sim.2917

Language

  • eng

Conference Location

  • England