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Related Experiment Videos

Vertebral heart size ranges specific for whippets.

Valérie Bavegems1, Annemie Van Caelenberg, Luc Duchateau

  • 1Department of Medicine and Clinical Biology of Small Animals, Faculty of Veterinary Medicine, Ghent University, Salisburylaan, Merelbeke, Belgium. valerie.bavegems@UGent.be

Veterinary Radiology & Ultrasound : the Official Journal of the American College of Veterinary Radiology and the International Veterinary Radiology Association
|October 28, 2005
PubMed
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The vertebral heart size (VHS) in whippets is larger than previously established, varying by radiographic view and pedigree. Consider these factors to accurately assess heart size in whippets.

Area of Science:

  • Veterinary Radiology
  • Cardiology
  • Canine Anatomy

Background:

  • Accurate assessment of heart size in dogs is crucial for diagnosing cardiac conditions.
  • The vertebral heart size (VHS) is a common radiographic method for estimating heart size.
  • Previous VHS guidelines may not be universally applicable across all breeds and conditions.

Purpose of the Study:

  • To evaluate the influence of breed, breeding lines, and training on the vertebral heart size (VHS) in whippets.
  • To compare VHS measurements from different radiographic views (lateral, dorsoventral, ventrodorsal) in whippets.
  • To establish breed-specific VHS norms for whippets.

Main Methods:

  • Thoracic radiographs (left-to-right lateral, right-to-left lateral, dorsoventral, ventrodorsal) were taken from 44 healthy whippets.

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  • Vertebral heart size (VHS) was calculated for each view.
  • VHS measurements were compared between different radiographic views, pedigree lines (racing vs. show), and training status (trained vs. untrained).

    • Main Results:

    • VHS measurements in whippets were significantly larger than previously proposed values across all views.
    • VHS varied significantly depending on the radiographic view: left-to-right lateral > right-to-left lateral, and ventrodorsal > dorsoventral.
    • Dogs from racing pedigree lines and trained dogs exhibited significantly larger VHS, though the influence of genetics versus training requires further investigation.

    Conclusions:

    • Established VHS guidelines require adjustment for whippets, considering breed-specific variations.
    • Radiographic view significantly impacts VHS measurements, necessitating standardized views for accurate interpretation.
    • Breeders and veterinarians should consider pedigree and training status when evaluating heart size in whippets to prevent misdiagnosis of cardiac enlargement.