Oct 14, 2009 · Correlation between the sum of long- and short-axis heart dimensions and a 10 vertebrae reference length in 100 normal dogs of various body types. Broad chested, small dogs are indicated by open squares. Deep-chested, large dogs are …

Consult this peer-reviewed comprehensive guide for calculating a vertebral heart scale in dogs to gain insight into its uses and how to interpret findings.

In dogs with MVD, an increased VHS is strongly suggestive of cardiomegaly. The degree of cardiac enlargement is dependent on the stage and severity of the underlying disease and is reflected by an increase in VHS measurement.

Apr 8, 2016 · VHS is useful for monitoring a patient in which heart disease is suspected (Figure 1), or in tracking changes in progressive cardiac disease over time. Figure 1. Illustration of VHS calculation in a normal dog. On a lateral radiograph, a line is drawn from the carina to the most ventral aspect of the heart. This line is the “L” or long axis line.

You can use VHS calculations to help identify dogs with advanced preclinical mitral valve disease. For more information, visit www.epictrial.com. 1 Using a lateral thoracic radiograph, ensure the thoracic vertebrae T4 to T12 are clearly delineated. Using calipers, measure the longest axis of the cardiac silhouette from

Vertebral heart score (VHS), normal dog This radiograph of a normal dog shows the length (red lines) of the heart to be 5.5 vertebrae and the width (blue lines) 4.5 vertebrae. The VHS is therefore 10 vertebrae (V).

The most common cardiac measurements on thoracic radiography in veterinary medicine are vertebral heart size (VHS) and vertebral left atrial size (VLAS). Previously published studies have demonstrated evidence that reference ranges for these measures vary among different dog breeds, however referenc …

Assessment of VHS (cats and dogs) and VLAS (dogs) with the breed, age, physical examination (heart murmur), signs of heart failure and other radiographic findings, a veterinarian can treat the dog or cat even if referral to a cardiologist is declined.

Assessment of VLAS can be used as a radiographic measurement to assess cardiac size and predict left atrial (LA) enlargement in dogs with myxomatous mitral valve disease (MMVD). This example: VLAS = 2.4 vertebrae. Using a lateral thoracic radiograph, ensure the thoracic vertebrae T4 to T8 are clearly delineated.

Our results indicated that cardiac gating may not be necessary when assessing canine heart size on CT. When comparing the VHS on gated and non-gated CT to the VHS on radiographs, there was a moderate to high degree of correlation; however, there was a high degree of variability between CT and radiography.