Table 1.
Summary statistics for body weight, BCS, DXA fat mass, CT tissue and fat distribution measurements, and ultrasound subcutaneous (SAT), visceral (VAT), and total (TAT) adipose thicknesses in dogs (n = 22)
| Trait | Mean | SD | Min | Max | CV (%) |
|---|---|---|---|---|---|
| Body weight (kg) | 23.4 | 13.1 | 5.1 | 60.0 | 56.1 |
| BCS (1–9) | 5.7 | 0.9 | 4.0 | 7.0 | 15.4 |
| DXA total body fat mass (kg) | 5.9 | 3.5 | 1.7 | 17.3 | 58.7 |
| DXA total body fat percentage (%) | 27.7 | 7.6 | 15.3 | 48.2 | 27.3 |
| CT abdominal tissue volume (L) | 6.6 | 3.7 | 1.5 | 17.3 | 55.9 |
| CT abdominal fat volume (L) | 2.7 | 2.0 | 0.6 | 9.7 | 75.2 |
| CT abdominal fat mass (kg)a | 2.5 | 1.9 | 0.6 | 8.9 | 75.5 |
| CT abdominal fat percentage (%)b | 10.6 | 2.9 | 5.0 | 15.2 | 27.4 |
| CT relative abdominal fat percentage (%)c | 39.4 | 6.0 | 29.9 | 51.7 | 15.3 |
| CT visceral fat volume (L) | 1.0 | 0.8 | 0.2 | 4.0 | 82.2 |
| CT visceral fat mass (kg)a | 0.9 | 0.8 | 0.2 | 3.7 | 82.8 |
| CT visceral fat percentage (%)b | 4.0 | 1.4 | 1.7 | 6.7 | 35.0 |
| CT relative visceral fat percentage (%)c | 14.6 | 3.1 | 10.7 | 21.2 | 21.4 |
| CT SQ fat volume (L) | 1.7 | 1.2 | 0.4 | 5.7 | 72.2 |
| CT SQ fat mass (kg)a | 1.6 | 1.1 | 0.3 | 5.3 | 72.4 |
| CT SQ fat percentage (%)b | 6.6 | 1.7 | 3.1 | 9.0 | 25.8 |
| CT relative SQ fat percentage (%)b | 24.8 | 4.4 | 17.0 | 32.3 | 39.0 |
| CT V/SQ Ratio | 0.60 | 0.14 | 0.36 | 0.86 | 23.2 |
| US SAT (mm) | 5.5 | 2.0 | 2.4 | 8.9 | 35.9 |
| US VAT (mm) | 13.5 | 8.1 | 3.4 | 34.1 | 60.2 |
| US TAT (mm) | 18.9 | 9.4 | 6.0 | 42.5 | 49.6 |
| US VAT/SAT | 2.51 | 1.29 | 0.57 | 6.05 | 51.6 |
CT computed tomography, CV coefficient of variation, DXA dual-energy x-ray absorptiometry, SAT subcutaneous adipose thickness, SD standard deviation, SQ abdominal subcutaneous fat around the abdominal wall, TAT total adipose thickness (VAT + SAT), US ultrasound, V/SQ visceral-to-subcutaneous fat ratio, VAT visceral adipose thickness, VAT/SAT visceral adipose thickness-to-subcutaneous adipose thickness ratio
a fat mass calculated from fat volume assuming fat density of 0.923 kg/L
b fat percentage calculated by regional fat mass relative to total body mass
c fat percentage calculated by regional fat mass relative to total body fat mass