Ultrassonografia modo B de alta resolução modo Doppler e uso de contraste de microbolhas na avaliação testicular de gatos domésticos

• Ano de defesa: 2015
• Autor(a) principal: Brito, Marina Botelho Soares de [UNESP]
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Estadual Paulista (Unesp)
• Palavras-chave em Português: Gato; Testiculos; Ultrassonografia veterinária; Ultrassom; Doppler, Ultrassonografia; Veterinary ultrasonography
• Link de acesso: http://hdl.handle.net/11449/135981; http://www.athena.biblioteca.unesp.br/exlibris/bd/cathedra/16-02-2016/000857979.pdf

Research involving breeding of domestic cats are commonly based on macroscopic and andrologic analysis, there is no study to date with sonographic evaluation of domestic cats testicle. Thus, this study aimed to perform the ultrasound scan of 45 adult domestic cats testicles, using the techniques of B mode, Triplex Doppler ultrasound and contrast-enhanced. The results showed homogeneous testicles, with normal echogenicity and echotexture, with evident mediastinal line. Testicular artery was observed in the spermatic cord with tortuous patter and showed monophasic-patterned waves and low vascular resistance and with systolic peak evident. Values of indices vascular were as follows: SV = 6.73 cm/s, DV = 2.8 cm/s and RI = 0.54 for left testicles; and SV = 6.23 cm/s, DV = 2.77 cm/s and RI = 0.53 for right testicles. The contrast-enhanced resulted in no side effects, being reliable and generating quality images. Contrast filled the subcapsular vascular structures and after a few seconds, a homogeneous moderate enhancement of the parenchyma, with parenchymal vessels still distinguishable and after the peak phase, a rapid homogeneous decrease in echogenicity. Values of time for contrast-enhanced ultrasonography were as follows: wash-in = 8.78 s, peak enhancement = 21.62 s and wash-out = 75.36 for left testicles; and wash-in = 10.76 s, peak enhancement = 21.50 s and washout = 81.81 for right testicles. The examination in Doppler mode showed testicular artery with monophasic-patterned waves in spermatic cord. These tests were easily applied in domestic cats and should be used as auxiliary techniques in the diagnosis of testicular abnormalities in this species