title: Intra- and interobserver variability of ultrasonographic measurements of the thyroid gland in healthy Beagles.
abstract: The repeatability of ultrasonographic measurements of the canine thyroid gland was evaluated. The variability of three different parameters (the maximal length, width, and height) within observer, between observer and between dogs was assessed based on three different measurements made by each of three observers infive healthy beagle dogs. From the three parameters, the volume of the gland was estimated using a formula of a rotation ellipse. The height and the volume had the lowest intra- and interobserver variability, while measurements of the length had the biggest intra- and interobserver variability. The mean values, with their 90% confidence interval were: height = 0.53cm [0.33-0.73], length = 2.45cm [2.04-2.85], width = 0.62cm [0.46- 0.78], volume = 0.38 cm3 [0.20-0.55].
authors.affiliation: Department of Medical Imaging, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium. olivier.taeymans@ugent.be
authors.forename: Olivier
authors.initials: O
authors.lastname: Taeymans
authors.forename: Luc
authors.initials: L
authors.lastname: Duchateau
authors.forename: Elke
authors.initials: E
authors.lastname: Schreurs
authors.forename: Martin
authors.initials: M
authors.lastname: Kramer
authors.forename: Sylvie
authors.initials: S
authors.lastname: Daminet
authors.forename: Jimmy H
authors.initials: JH
authors.lastname: Saunders
mesh_terms: D000818:Animals; D004285:Dogs / Q000033:anatomy & histology*; D005260:Female; D015588:Observer Variation; D011237:Predictive Value of Tests; D013961:Thyroid Gland / Q000033:anatomy & histology* / Q000000981:diagnostic imaging; D014463:Ultrasonography / Q000662:veterinary