Adrenal Elastography in Canines
World Small Animal Veterinary Association Congress Proceedings, 2016
S. Fernandez1; M.A. Rossi Feliciano1; S. Borin Crivellenti1; L. Zuccolotto Crivellenti1; A.P. Rodrigues Simões1; M.C. Maronezi1; R. Ramirez Uscategui1; C. Rodrigues Capela1; N. Rocha Neves Cruz1; C. Gilor2; W.R. Russiano Vicente1
1Preventive Veterinary Medicine and Animal Reproduction, College of Agricultural and Veterinary Sciences, São Paulo State University, Jaboticabal, Brazil; 2Department of Veterinary Clinical Sciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH, USA

Ultrasonography of the adrenal glands allows the description, biometric measurement and helps the diagnosis of diseases of the adrenal. Elastography is a promising ultrasound technique that evaluates tissue elasticity, such as compression, acoustic radiation force impulse (ARFI) and real-time shear velocity or supersonic (RSV). There are no reports of the use of this technique in the evaluation of the adrenal glands of animals and to describe the technique and to determine the quality and quantity (shear velocity) standards of ARFI elastography in evaluation of adrenal glands in dogs. Thirty healthy, adult dogs (60 adrenal in total) were selected. Echogenicity (hypoechoic, hyperechoic or mixed) and echotexture (homogeneous or heterogeneous), size and contours and margins (regular or not) were assessed by B-mode and using qualitative and quantitative elastography to detect the presence of deformities and tissue stiffness (elastogram) and shear velocities were obtained. Findings of ultrasonography were normal. Qualitative elastography shows that adrenal glands were not deformable and with homogeneous middle-grey areas. The results of shear wave velocity were similar statistically (p=0.3087): left adrenal - 1.42 m/s for cranial pole, 1.31 m/s for body region and 1.71 m/s for caudal pole; right adrenal - 1.42 m/s for cranial pole, 1.74 m/s for body region and 1.63 m/s for caudal pole. ARFI elastography of the adrenal glands in adult dogs was easily implemented and may provide baseline data in the study of this organ to allow the use of ARFI.

  

Speaker Information
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S. Fernandez
Preventive Veterinary Medicine and Animal Reproduction
College of Agricultural and Veterinary Sciences
São Paulo State University
Jaboticabal, Brazil


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