Medical and biological engineering

, Volume 14, Issue 1, pp 103–103 | Cite as

A pen counter for use in cell counting

  • J. P. Modesto
  • M. A. Santos
Technical Note


A pen-counter system has been described which was found to be very useful for counting the number of muscle cells in the cross-section of narrow slips of the intercostal muscles. This system speeded up very drastically the whole counting procedure and made possible an extensive survey of the fibre densities in the intercostal muscles of dogs. It should also prove to be a convenient instrumental approach in all areas in which large numbers of small objects have to be counted.


Cell counting Pen counter 


  1. Ledley, R. S. (1965)Use of computers in biology and medicine. McGraw-Hill, 397–399.Google Scholar

Copyright information

© International Federation for Medical & Biological Engineering 1976

Authors and Affiliations

  • J. P. Modesto
    • 1
  • M. A. Santos
    • 1
  1. 1.Laboratório de FisiologiaInstituto Gulbenkian de CiênciaOeirasPortugal

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