An assessment of the metaphase finding capability of the Cytoscan 110

Paul Finnon*, D. C. Lloyd, Alan Edwards

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

33 Citations (Scopus)


The Cytoscan 110 metaphase finder has been tested with cultures of human peripheral blood lymphocytes prior to its introduction into routine use for the analysis of radiation-induced chromosomal damage. Cells of varying quality and density of distribution on slides, stained with orcein or Giemsa, were examined by the same technician using the Cytoscan and a conventional microscope. The Cytoscan was able to locate rapidly (< 2 min) virtually all metaphases known to be present and with an acceptably low rate of false positives. The presence of mixtures of FPG-stained first- and second-division spreads did not reduce its efficiency in metaphase finding. The instrument automatically divides the objects that it locates into 4 quality ranks and this was very effective in separating good metaphases, suitable for high-magnification scoring, from unscorable spreads and debris. With cultures of X-irradiated blood it was shown that the criteria by which the Cytoscan locates metaphases and ranks their appearance do not introduce bias in the yields of dicentric and other unstable chromosome-type aberrations.

Original languageEnglish
Pages (from-to)101-108
Number of pages8
JournalMutation Research/Environmental Mutagenesis and Related Subjects
Issue number2
Publication statusPublished - Apr 1986

Bibliographical note

Funding Information:
The Cytoscan 110 was developed by the Medical Research Council's Clinical and Population Cytogenetics Unit, Edinburgh, and is manufactured by Shandon Ltd., Runcorn, Great Britain. It is not intended here to give a comprehensive description of the instrument as it has been described elsewhere (Shippey et al., 1981, 1982) and detailed specifications can be obtained from the manufacturer.


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