Morphometrical Study of the Lumbar Segment of the Internal Vertebral Venous Plexus in Dogs: A Contrast CT-Based Study
Abstract
:Simple Summary
Abstract
1. Introduction
2. Materials and Methods
2.1. Biological Material
2.2. Anaesthesia Protocol
2.3. CT Venography Protocol
2.4. Morphometric Analysis
- −
- cross sectional area of the vertebral canal (mm2);
- −
- cross sectional area of the dural sac (mm2);
- −
- total area of the IVVP (area of the right and left IVVP component) (mm2);
- −
- area of the epidural space: vertebral canal area minus the area occupied by the dural sac (mm2);
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- percentage of the IVVP occupying the vertebral canal;
- −
- percentage of the dural sac occupying the vertebral canal;
- −
- percentage of the IVVP within the epidural space;
2.5. Statistical Analysis
3. Results
3.1. Internal Vertebral Venous Plexus
3.2. Vertebral Canal
3.3. Dural Sac
3.4. Epidural Space
4. Discussion
5. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Conflicts of Interest
References
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Morphometric Measures | Vertebral Segment | ||||||
---|---|---|---|---|---|---|---|
L1 | L2 | L3 | L4 | L5 | L6 | L7 | |
Vertebral canal | 7.87 ± 1.3 | 8.24 ± 1.8 | 9.21 ± 1.7 | 10.27 ± 1.9 | 9.77 ± 1.7 | 8.68 ± 1.2 | 8.28 ± 2 |
Dural sac | 4.67 ± 1.1 | 5.04 ± 1.2 | 6.34 ± 1.3 | 7.42 ± 1.6 | 5.04 ± 0.9 | 1.78 ± 0.4 | 1.22 ± 0.1 |
IVVP | 0.7 ± 0.2 | 0.66 ± 0.1 | 0.64 ± 0.1 | 0.63 ± 0.1 | 0.74 ± 0.2 | 0.66 ± 0.2 | 0.61 ± 0.1 |
Epidural space | 3.2 ± 0.6 | 3.2 ± 0.9 | 2.87 ± 0.7 | 2.85 ± 0.8 | 4.72 ± 1.6 | 6.9 ± 0.8 | 7.78 ± 1.6 |
Morphometric Measures | Vertebral Segment | ||||||
---|---|---|---|---|---|---|---|
L1 | L2 | L3 | L4 | L5 | L6 | L7 | |
Dural sac | 59 (47.7–67,4) | 61.3 (49.1–69.4) | 68.8 (58.8–76.6) | 72.2 (62.6–77.8) | 52.6 (46.8–75.3) | 20.4 (17–21.2) | 13.8 (11.3–15.7) |
IVVP | 8.9 (6.4–11.8) | 8.3 (5.5–10.3) | 7.1 (4.8–8.7) | 6.3 (4.8–8.8) | 7.4 (5.3–10.8) | 7.7 (4.5–9.5) | 7.9 (4.5–11.2) |
Epidural space | 41 (32.6–52.3) | 38.7 (30.6–50.9) | 31.2 (23.4–41.2) | 27.8 (20.8–37.4) | 47.4 (24.7–58.9) | 79.6 (75.6–83) | 86.2 (84.3–88.7) |
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Ariete, V.; Barnert, N.; Gómez, M.; Mieres, M.; Pérez, B.; Gutierrez, J.C. Morphometrical Study of the Lumbar Segment of the Internal Vertebral Venous Plexus in Dogs: A Contrast CT-Based Study. Animals 2021, 11, 1502. https://doi.org/10.3390/ani11061502
Ariete V, Barnert N, Gómez M, Mieres M, Pérez B, Gutierrez JC. Morphometrical Study of the Lumbar Segment of the Internal Vertebral Venous Plexus in Dogs: A Contrast CT-Based Study. Animals. 2021; 11(6):1502. https://doi.org/10.3390/ani11061502
Chicago/Turabian StyleAriete, Valeria, Natalia Barnert, Marcelo Gómez, Marcelo Mieres, Bárbara Pérez, and Juan Claudio Gutierrez. 2021. "Morphometrical Study of the Lumbar Segment of the Internal Vertebral Venous Plexus in Dogs: A Contrast CT-Based Study" Animals 11, no. 6: 1502. https://doi.org/10.3390/ani11061502