Automated identification of diploid reference cells in cervical smears using image analysis
✍ Scribed by Jeroen A.W.M. van der Laak; Albertus G. Siebers; Vincent M.J.I. Cuijpers; Martin M.M. Pahlplatz; Peter C.M. de Wilde; Antonius G.J.M. Hanselaar
- Publisher
- John Wiley and Sons
- Year
- 2002
- Tongue
- English
- Weight
- 160 KB
- Volume
- 47
- Category
- Article
- ISSN
- 0196-4763
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
Background
Acquisition of DNA ploidy histograms by image analysis may yield important information regarding the behavior of premalignant cervical lesions. Accurate selection of nuclei for DNA measurement is an important prerequisite for obtaining reliable data. Traditionally, manual selection of nuclei of diagnostic and reference cells is performed by an experienced cytotechnologist. In the present study, a method for the fully automated identification of nuclei of diploid epithelial reference cells in Feulgen‐ restained Papanicolaou (PAP) smears is described.
Methods
The automated procedure consists of a decision tree implemented on the measurement device, containing nodes with feature threshold values and multivariate discriminant functions. Nodes were constructed to recognize debris and inflammatory cells, as well as diploid and nondiploid epithelial cells of the uterine cervix. Evaluation of the classifier was performed by comparing resulting diploid integrated optical densities with those from manually selected reference cells.
Results and Conclusion
On average, automatically acquired values deviated 2.4% from manually acquired values, indicating that the method described in this paper may be useful in cytometric practice. Cytometry 47:256–264, 2002. © 2002 Wiley‐Liss, Inc.