Article Text

PDF
Ultrasonography of the teat canal in cows and sheep
  1. S. Franz, DrMedVet1,
  2. W. Baumgartner, DrMedVet1,
  3. M. Hofmann-Parisot, DrMedVet2,
  4. G. Windischbauer, Dipllng, DrTech2,
  5. A. Suchy, DrMedVet3 and
  6. B. Bauder, DrRerNat3
  1. 1 Clinic for Ruminants and Swine
  2. 2 Institute of Medical Physics and Biostatistics
  3. 3 Institute of Pathology and Forensic Medicine, University of Veterinary Medicine, Veterinärplatz 1, A-1021 Vienna, Austria

Abstract

When the isolated teat of a cow was examined with an 8.5 MHz linear array transducer in a vertical plane, the teat canal appeared as a thin, white line, bordered on each side by parallel, thick, grey-black bands. In a horizontal plane a comparable image was obtained. In a sheep, images of comparable quality were obtained with a 12 MHz transducer. Histological studies of the tissues whose removal led to the disappearance of this characteristic ultrasonographic appearance showed that it was associated with the stratified keratinised squamous epithelium with distinct papillae. The content of keratin in the stratum corneum was apparently responsible for the bright zone; the stratum lucidum was not visible, and the surrounding dark, less echoic area was associated with the stratum granulosum. Doppler echography in live animals confirmed this designation. The outer layers of the teat wall were more echogenic.

    Statistics from Altmetric.com

      Request permissions

      If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.