Digital radiography and ultrasonography in evaluation of the canine prostate

Bruna Naiara Moresco; Gentil Ferreira Gonçalves

doi:10.5433/1679-0359.2019v40n2p677

Autores/as

Bruna Naiara Moresco Universidade Federal da Fronteira Sul http://orcid.org/0000-0001-9785-2282
Gentil Ferreira Gonçalves Universidade Federal da Fronteira Sul http://orcid.org/0000-0003-0554-5782

DOI:

https://doi.org/10.5433/1679-0359.2019v40n2p677

Palabras clave:

Canine Andrology, Dogs, Imaging diagnosis, Ultrasound, X-ray.

Resumen

This study aimed to evaluate the canine prostate using ultrasonography and digital radiography. The study involved 21 intact dogs of mixed breed, with a mean weight of 8.7 ± 3.09 kg and without previous hormonal treatment. The dogs were divided into three groups according to the age: GI (0-3 years); GII (3-7 years); GIII (7+ years). Prostates from each animal were qualitatively and quantitatively evaluated by means of digital rectal examination, ultrasonography and digital radiography. A total of 882 measurements were obtained and 84 qualitative analyses. The results demonstrated association and high agreement between digital rectal examination and radiography for prostatomegaly diagnosis (p = 0.0030; K = 0.829268). Ultrasonography and digital rectal examination did not present an association and had low agreement for diagnosis of alterations in prostatic parenchyma (p = 1; K = 0.049383). Also, there was a difference between ultrasonographic and radiographic measurements (height: p = 0.0002; length: p < 0.0001; width: p < 0.0001). However, the measurements from distinct radiographic projections showed no difference between each other (width: p = 0.3543; length: p = 0.3079 and p = 0.9725; height: p = 0.3208). Prostatic volume based on ultrasonographic measurements showed a positive correlation being proportional to the age of the dog (p = 0.0383). It was concluded that both methods, ultrasonography and radiography, are relevant diagnostic tools in evaluating the canine prostate, beyond just complementing each other. There are limitations associated with both imaging methods, which should be taken into consideration when planning a specific investigation of the canine prostate.

Biografía del autor/a

Bruna Naiara Moresco, Universidade Federal da Fronteira Sul

Discente de Mestrado, Programa de Pós-Graduação em Saúde, Bem-estar e Produção Animal Sustentável na Fronteira Sul - Universidade Federal da Fronteira Sul, Campus Realeza, UFFS, Realeza, PR, Brasil.

Gentil Ferreira Gonçalves, Universidade Federal da Fronteira Sul

Prof. Associado 1, Curso de Medicina Veterinária - Universidade Federal da Fronteira Sul, Campus Realeza, UFFS, Realeza, PR, Brasil.

Citas

ATALAN, G.; BARR, F. J.; HOLT, P. E. Comparison of ultrasonographic and radiographic measurements of canine prostate dimensions. Veterinary Radiology & Ultrasound, Clemson, v. 40, n. 4, p. 408-412, 1999a.

ATALAN, G.; HOLT, P. E.; BARR, F. J. Ultrasonographic estimation of prostate size in normal dogs and relationship to bodyweight and age. Journal of Small Animal Practice, Malden, v. 40, n. 3, p. 119-122, 1999b.

ATALAN, G.; HOLT, P. E.; BARR, F. J.; BROWN, P. J. Ultrasonographic estimation of prostatic size in canine cadavers. Research in Veterinary Science, Penicuik, v. 67, n. 1, p. 7-15, 1999c.

BRADBURY, C. A.; WESTROPP, J. L.; POLLARD, R. E. Relationship between prostatomegaly, prostatic mineralization, and cytologic diagnosis. Veterinary Radiology & Ultrasound, Clemson, v. 50, n. 2, p. 167-171, 2009.

COONEY, J. C.; CARTEE, R. E.; GRAY, B. W.; RUMPH, P. F. Ultrasonography of the canine prostate with histologic correlation. Theriogenology, New York, v. 38, n. 5, p. 877-895, 1992.

D?BIAK, P.; BALICKI, I. Diagnostic imaging of the canine prostate gland subject to its location and size. Bulletin of the Veterinary Institute in Pulawy, Berlin, v. 53, n. 2, p. 313-317, 2009.

FREITAS, L.A.; PINTO, J. N.; SILVA, H. V. R.; SILVA, L. D. M. Two-dimensional and Doppler sonographic prostatic appearance of sexually intact French Bulldogs. Theriogenology, New York, v. 83, n. 7, p. 1140-1146, 2015.

GADELHA, C. R. F.; VICENTE, W. R. R.; SILVA, L. D. M.; ALENCAR, A. A.; CAMPOS, A. C. N.; LIMA, T. S.; DIÓGENES, D. Mensuração ultra-sonográfica e física da próstata canina. Ciência Animal, Fortaleza, v. 18, n. 2, p. 51-56, 2008.

GHADIRI, A.; AVIZEH, R.; BANIADAM, A.; RANJBAR, A. Comparison of transabdominal and transrectal ultrasonography of the prostate gland in dogs. Iranian Journal of Veterinary Surgery, Kerman, v. 8, n. 2, p. 43-48, 2013.

JOHNSTON, S. D.; KAMOLPATANA, K.; ROOT-KUSTRITZ, M. V.; JOHNSTON, G. R. Prostatic disorders in the dog. Animal Reproduction Science, Belfield, v. 60-61, p. 405-415, 2000.

KAMOLPATANA, K.; JOHNSTON, G. R.; JOHNSTON, S. D. Determination of canine prostatic volume using trans abdominal ultrasonography. Veterinary Radiology & Ultrasound, Clemson, v. 41, n. 1, p. 73-77, 2000.

KORODI, G.; COLIBAR, O.; CERNESCU, H.; ARDELEAN, V.; BONCA, G.; MIRCU, C.; POPOVICI, D. Study regarding the evolution with age of ultrasound prostate dimensions in German Shepherd dogs. Journal of Animal Science and Biotechnologies, Beijing, v. 43, n. 1, p. 182-184, 2010.

LAFLAMME, D. P. Development and validation of a body condition score system for dogs. Canine Practice, Santa Bárbara, v. 22, n. 4, p. 10-15, 1997.

LATTIMER, J. C.; ESSMAN, S. C. Próstata. In: THRALL, D. E. Diagnóstico de radiologia veterinária. 6. ed. Rio de Janeiro: Elsevier, 2014. p. 749-756.

LEROY, B. E.; NORTHRUP, N. Prostate cancer in dogs: comparative and clinical aspects. The Veterinary Journal, Indiana, v. 180, n. 2, p. 149-162, 2009.

LOWSETH, L. A.; GERLACH, R. F.; GILLETT, N. A.; MUGGENBURG, B. A. Age-related changes in the prostate and testes of the beagle dog. Veterinary Pathology, Ontario, v. 27, n. 5, p. 347-353, 1990.

MOXON, R.; BRIGHT, L.; PRITCHARD, B.; BOWEN, I. M.; SOUZA, M. B.; SILVA, L. D. M.; ENGLAND, G. C. W. Digital image analysis of testicular and prostatic ultrasonographic echogencity and heterogeneity in dogs and the relation to semen quality. Animal Reproduction Science, Belfield, v. 160, p. 112-119, 2015.

MUKARATIRWA, S.; CHITURA T. Canine subclinical prostatic disease: histological prevalence and validity of digital rectal examination as a screening test. Journal of the South African Veterinary Association, Pretoria, v. 78, n. 2, p. 66-68, 2007.

NAIR, D. R.; GHOSH, K. N. A.; HARSHAN, H. M. Estimation of prostatic size in dogs using transabdominal ultrasonography. Indian Journal of Animal Reproduction, Chennai, v. 33, n. 2, p. 79-81, 2012.

PACLIKOVA, K.; KOHOUT, P.; VLASIN, M. Diagnostic possibilities in the management of canine prostatic disorders. Veterinarni Medicina, Brno, v. 51, n. 1, p. 1-13, 2006.

RUEL, Y.; BARTHEZ, P. Y.; MAILLES, A.; BEGON, D. Ultrasonographic evaluation of the prostate in healthy intact dogs. Veterinary Radiology & Ultrasound, Clemson, v. 39, n. 3, p. 212-216, 1998.

SMITH, J. Canine prostatic disease: A review of anatomy, pathology, diagnosis, and treatment. Theriogenology, New York, v. 70, n. 3, p. 375-383, 2008.

THRALL, D. E. Introdução à interpretação radiográfica. In: THRALL, D. E. Diagnóstico de radiologia veterinária. 6. ed. Rio de Janeiro: Elsevier, 2014. p. 74-86.

THRALL, D. E.; ROBERTSON, I. D. The abdomen. In: THRALL, D. E.; ROBERTSON, I. D. Atlas of normal radiographic anatomy and anatomic variants in the dog and cat. 2th ed. St. Louis: Elsevier, 2011. p. 253-295.