Radiographic Cardiac Measurements in Clinically Healthy Calves: Reference Values for VHS, VLAS, CTR, and CVC
Öz
This study aimed to establish reference values for thoracic radiographic cardiac measurements in clinically healthy calves aged 0-3 months and to evaluate their associations with age, sex, and breed. The assessed parameters included Vertebral Heart Score (VHS), Vertebral Left Atrial Size (VLAS), cardiothoracic ratio (CTR; recorded as CTO in the dataset), long axis (LA), short axis (SA), and caudal vena cava (CVC) diameter. A total of 100 clinically healthy calves (68 Simmental, 17 Brown Swiss/Montofon, 12 crossbred and 3 Holstein; 65 males and 35 females; 1-93 days old) presented to the Animal Hospital of the Faculty of Veterinary Medicine, Atatürk University, were included. Sedation was not used. Right lateral and dorsoventral thoracic radiographs were obtained, and measurements were performed using a DICOM/PACS system by two independent observers in a blinded manner, with three repeated measurements. VHS and VLAS were calculated in vertebral units. CTR (CTO) was defined as the ratio of maximal cardiac width to maximal internal thoracic width, while LA, SA, and CVC were recorded as linear measurements. Statistical analyses were conducted using MedCalc. Sex comparisons were performed with the Mann–Whitney U test, breed comparisons (excluding Holstein) with the Kruskal-Wallis test, and age effects with multivariable regression analysis. Absolute measurements (LA, SA, and CVC) increased significantly with age (p<0.01), whereas VHS and CTR (CTO) remained stable (p>0.05). Male calves showed higher LA, SA, and VLAS values than females (p<0.05). No significant breed-related differences were detected. In conclusion, growth significantly affects absolute cardiac dimensions in young calves, while VHS and CTR/CTO remain stable, supporting their reliability as size-normalized radiographic indices during early life.
Anahtar Kelimeler
Kaynakça
- Amory, H., & Lekeux, P. (1991). Effects of growth on functional and morphological echocardiographic variables in Friesian calves. Veterinary Record., 128(15), 349–354. https://doi.org/10.1136/vr.128.15.349
- Bagardi, M., Locatelli, C., Manfredi, M., Bassi, J., Spediacci, C., Ghilardi, S., Zani, D. D., & Brambilla, P. G. (2022). Breed-specific vertebral heart score, vertebral left atrial size, and radiographic left atrial dimension in Cavalier King Charles Spaniels: Reference interval study. Veterinary Radiology & Ultrasound, 63(2), 156–163. https://doi.org/10.1111/vru.13036
- Baisan, R. A., & Vulpe, V. (2025). Vertebral Heart Score and Vertebral Left Atrial Size as Radiographic Measurements for Cardiac Size in Dogs-A Literature Review. Animals, 15(5), 683. https://doi.org/10.3390/ani15050683
- Battinelli, G. M., Piscitelli, N., Murphy, L., Gentile-Solomon, J., Szlosek, D., & Nakamura, R. K. (2024). Vertebral heart score and vertebral left atrial size reference intervals in Jack Russell Terriers, Miniature Pinschers, and Brussels Griffons. American Journal of Veterinary Research. 85(12), ajvr.24.07.0209. https://doi.org/10.2460/ajvr.24.07.0209
- Buchanan, J. W., & Bücheler, J. (1995). Vertebral scale system to measure canine heart size in radiographs. Journal of the American Veterinary Medical Association, 206(2), 194–199. https://doi.org/10.2460/JAVMA.1995.206.02.194
- Casalta, H., Busoni, V., Eppe, J., Grulke, S., Merveille, A.-C., Moula, N., & Gommeren, K. (2022). Ultrasonographical assessment of caudal vena cava size through different views in healthy calves: A pilot study. Veterinary Sciences, 9(7), 308. https://doi.org/10.3390/vetsci9070308
- Doğan, E., Okur, S., Hayırlı, A., & Okumuş, Z. (2022). Vertebral heart score and cardiothoracic ratio in Wistar rats. Ankara Üniversitesi Veteriner Fakültesi Dergisi, 70(1), 43–47. https://doi.org/10.33988/auvfd.905135
- Guglielmini, C., Baron Toaldo, M., Poser, H., Menciotti, G., Cipone, M., Cordella, A., Contiero, B., & Diana, A. (2014). Diagnostic accuracy of the vertebral heart score and other radiographic indices in the detection of cardiac enlargement in cats with different cardiac disorders. Journal of Feline Medicine and Surgery, 16(10), 812–825. https://doi.org/10.1177/1098612X14522048
Ayrıntılar
Birincil Dil
İngilizce
Konular
Veteriner Cerrahi
Bölüm
Araştırma Makalesi
Erken Görünüm Tarihi
15 Haziran 2026
Yayımlanma Tarihi
15 Haziran 2026
Gönderilme Tarihi
23 Şubat 2026
Kabul Tarihi
9 Haziran 2026
Yayımlandığı Sayı
Yıl 2026 Cilt: 19 Sayı: 2
