Analysing Radiographic Cardiothoracic Indices Across Age Groups in Pugs: A Comparative Study

Authors

  • Hiren M Barot Department of Veterinary Surgery and Radiology, College of Veterinary Science and Animal Husbandry, Kamdhenu University, Anand - 388001, Gujarat, India
  • Pinesh V Parikh 1Department of Veterinary Surgery and Radiology, College of Veterinary Science and Animal Husbandry, Kamdhenu University, Anand - 388001, Gujarat, India
  • Bhairavi N Sodagar Tata Trust Small Animal Hospital, Mahalaxmi, Mumbai, Maharastra, India
  • Ashish C Patel Department of Animal Genetics and Breeding, College of Veterinary Science and Animal Husbandry, Kamdhenu University, Anand - 388001, Gujarat, India
  • Ankush J Mayani Department of Veterinary Surgery and Radiology, College of Veterinary Science and Animal Husbandry, Kamdhenu University, Anand - 388001, Gujarat, India
  • Forum A Asodiya Department of Veterinary Surgery and Radiology, College of Veterinary Science and Animal Husbandry, Kamdhenu University, Anand - 388001, Gujarat, India

DOI:

https://doi.org/10.48165/ijvsbt.20.4.08

Keywords:

Cardiothoracic indices, DCM, Pugs, Radiographic indices,, Reference values.

Abstract

The present research work was carried out to standardize normal reference values of various radiographic indices in 13 healthy Pugs  and compare for different age effects. The dogs were divided into two age groups (Group P1, > 1 to < 4 years, n=6, and Group P2, > 4  to < 8 years, n=7) to evaluate whether cardiothoracic radiographic indices differ between the two age groups of dogs. Cardiothoracic  radiography was taken without any sedation or anaesthesia and all radiographic measurements were done using software MicroDicom  DICOM Viewer. Various cardiothoracic radiography indices studied in the Pug dogs did not vary significantly between the age groups.  However, mean values of various cardiothoracic radiography indices, viz., Vertebral Heart Score (VHS), Radiographic Left Atrial  Dimension (RLAD), Vertebral Left Atrial Size (VLAS), LAwidth, LAtotal, Thoracic Inlet Heart Size (THIS), Manubrium Heart Score (MHS) and  Cardiothoracic Ratio (CTR) can be used for diagnosis of left atrial enlargement and cardiomegaly in DCM affected dogs as an adjunct  to echocardiography. Based on present findings, we concluded that mean values of various cardiothoracic radiography indices can be  used as breed-specific reference values for screening of dogs suspected for cardiac disease. 

Downloads

Download data is not yet available.

References

Azevedo, G.M., Pessoa, G.T., Moura, L.D.S., Sousa, F.D.C.A., Rodrigues, R.P.D.S., Sanches, M.P., Fontenele, R.D., Barbosa, M.A.P.D.S., Neves, W.C., Sousa, J.M.D., & Alves, F.R. (2016). Comparative study of the vertebral heart scale (VHS) and the cardiothoracic ratio (CTR) in healthy Poodle breed dogs. Acta Scientiae Veterinariae, 44(1), 1-7.

Berry, C.R., Graham, P.R., & Thrall, D.E. (2007). Interpretation paradigms for the small animal thorax. In D. E. Thrall, 5th eds.,

Textbook of Veterinary Diagnostic Imaging, St. Louis: Saunders Elsevier, pp. 462-485.

Birks, R., Fine, D.M., Leach, S.B., Clay, S.E., Eason, B.D., Britt, L.G., & Lamb, K.E. (2017). Breed-specific vertebral heart scale for the Dachshund. Journal of the American Animal Hospital Association, 53(2), 73-79.

Buchanan, J.W., & Bucheler, J. (1995). Vertebral scale system to measure canine heart size in radiographs. Journal of the American Veterinary Medical Association, 206(2), 194-199.

Guglielmini, C., Diana, A., Santarelli, G., Torbidone, A., Di Tommaso, M., Baron Toaldo, M., & Cipone, M. (2012). Accuracy of radiographic vertebral heart score and sphericity index in the detection of pericardial effusion in dogs. Journal of the American Veterinary Medical Association, 241(8), 1048-1055.

Gulanber, E.G., Gonenci, G., Kaya, U., Aksoy, O., & Birsik, H.S. (2005). Vertebral scale system to measure heart size in thoracic radiographs of Turkish Shepherd (Kangal) dogs. Turkish Journal of Veterinary & Animal Sciences, 29, 723-726.

Jepsen-Grant, K., Pollard, R., & Johnson, L. (2013). Vertebral heart scores in eight dog breeds. Veterinary Radiology & Ultrasound, 54(1), 3-8.

Johnson, V., Hansson, K., Mai, W., Dukes-McEwan, J., Lester, N., Schwarz, T., Chapman, P., & Morandi, F. (2008). The heart and major vassels. In: Schwarz T, Johnson V. Manual of Canine and Feline thoracic Imaging, 1st eds., BSAVA, pp. 86-176.

Kavitha, S., Jeyaraja, K., Thirunavukkarasu, P., Thirunavukkarasu, P.S., & Chandrasekaran, D. (2020). Echocardiographic parameters and indices in Pug dogs. Intas Polivet, 21(1), 176-178.

Lam, C., Gavaghan, B.J., & Meyers, F.E. (2021). Radiographic quantification of left atrial size in dogs with myxomatous mitral valve disease. Journal of Veterinary Internal Medicine, 35, 747-754.

Lehmukhl, L.B., Bonagura, J.D., Biller, D.S., & Hartman, W.M. (1997). Radiographic evaluation of caudal vena cava size in dogs. Veterinary Radiology & Ultrasound, 38(2), 94-100.

Ljubica, S.K., Krstic, N., & Trailovic, R.D. (2007). Comparison of three methods of measuring vertebral heart size in German Shepherd dogs. Acta Veterinaria, 57(2-3), 133-141.

Malcolm, E.L., Visser, L.C., Phillips, K.L., & Johnson, L.R. (2018). Diagnostic value of vertebral left atrial size as determined from thoracic radiographs for assessment of left atrial size in dogs with myxomatous mitral valve disease. Journal of the American Veterinary Medical Association, 253(8), 1038-1045.

Marbella Fernández, D., García, V., Santana, A.J., & Montoya-Alonso, J.A. (2023). The thoracic inlet heart size: A new approach to radiographic cardiac measurement. Animals, 13(389), 1-14.

Mostafa, A.A., Peper, K.E., & Berry, C.R. (2020). Use of cardiac sphericity index and manubrium heart scores to assess radiographic cardiac silhouettes in large- and small-breed dogs with and without cardiac disease. Journal of the American Veterinary Medical Association, 256(8), 888-898.

Owens, J.M., & Biery, D.N. (1999). Radiographic Interpretation for the Small Animal Clinician. 2nd eds., Missouri: Ralston Purina Company, pp. 89-132.

Root, C.R., & Bahr, R.J. (2002). The heart and great vessels: In: Textbook of Diagnostic Veterinary Radiology. 4th eds., W.B. Saunders Company, Philadelphia, pp. 402-419.

Sanchez Salguero, X., Prandi, D., Llabrés-Díaz, F., Manzanilla, E. G., Badiella, L., & Bussadori, C. (2019). Heart to spine measurements to detect left atrial enlargement in dogs with mitral insufficiency. Irish Veterinary Journal, 72(1), 1-4.

Schillaci, M.A., Parish, S., & Jones-Engel, L. (2009). Radiographic measurement of the cardiothoracic ratio in pet macaques from Sulawesi, Indonesia. Radiography, 15(4), e29–e33.

Shar ma , P. (2020). Stu di es o n th o r a ci c r a di o gr ap hy, electrocardiography and echocardiography in small breed dogs. M.V.Sc Thesis., U.P. Pandit Deen Dayal Upadhyaya Pashu Chikitsa Vigyan Vishwavidyalaya Evam Go Anusandhan Sansthan (DUVASU), Mathura-281001 UP, India.

Silaghi, A., Piercecchi-Marti, M.D., Grino, M., Leonetti, G., Alessi, M.C., Clement, K., Dadoun, F., & Dutour, A. (2008). Epicardial adipose tissue extent: Relationship with age, body fat distribution, and coronaropathy. Obesity, 16(11), 2424-2430.

Snedecor, G.W. & Cochran, W.G. (2014). Statistical methods, paperback. 8th eds., East West Press Pvt. Ltd., New Delhi. Spasojevic, K., Trailovic, D.R. & Krstic, N. (2017). Age-dependent electrocardiographic and echocardiographic changes in

German Shepherd dogs. Iranian Journal of Veterinary Research, 18(1), 43-48.

Stepien, R.L., Rak, M.B., & Blume, L.M. (2020). Use of radiographic measurements to diagnose stage B2 preclinical myxomatous mitral valve disease in dogs. Journal of the American Veterinary Medical Association, 256(10), 1129-1136.

Suter, P.F., & Lord, P.F. (1984). A critical evaluation of the radiographic findings in canine cardiovascular diseases. Journal of the American Veterinary Medical Association, 158(3), 358-371.

Weigel, P.S., Nolte, I., Mach, R., Freise, F., & Bach, J. (2022). Reference ranges for standard-echocardiography in Pugs and impact of clinical severity of brachycephalic obstructive airway syndrome (BOAS) on echocardiographic parameters. BMC Veterinary Research, 18(282), 1-13.

Downloads

Published

2024-07-01

How to Cite

Barot, H.M., Parikh, P.V., Sodagar, B.N., Patel, A.C., Mayani, A.J., & Asodiya, F.A. (2024). Analysing Radiographic Cardiothoracic Indices Across Age Groups in Pugs: A Comparative Study. Indian Journal of Veterinary Sciences and Biotechnology, 20(4), 33–38. https://doi.org/10.48165/ijvsbt.20.4.08