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Acoustic radiation force impulse (ARFI) elastography of testicular disorders in dogs: preliminary results Arq. Bras. Med. Vet. Zootec.
Feliciano,M.A.R.; Maronezi,M.C.; Simões,A.P.R.; Maciel,G.S.; Pavan,L.; Gasser,B.; Silva,P.; Uscategui,R.R.; Carvalho,C.F.; Canola,J.C.; Vicente,W.R.R..
The aim of this study was to describe the use of acoustic radiation force impulse (ARFI) elastography in the evaluation of testicular disorders in dogs. Eighteen dogs with testicular disorders (thirty-six testicles) were assessed. Echotexture, size, contours and margins of testes were analysed by ultrasonography. Deformities and tissue stiffness (greyscale and homogenous or heterogeneous) were evaluated by qualitative elastography and shear velocity was determined quantitatively. Subsequent to orchiectomy, testicular samples were collected for histopathology analysis and thirty-six disorders were identified. Qualitative elastography revealed that normal healthy testicular tissues were homogenous and not pliable while the affected testicles had alterations...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Canine; Stiffness; Testicular disease.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352016000200283
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Pulmonar ARFI elastography and ultrasonography of canine fetal hydrops: case report Arq. Bras. Med. Vet. Zootec.
Maronezi,M.C.; Madruga,G.M.; Uscategui,R.A.R.; Simões,A.P.R.; Silva,P.; Rodrigues,M.G.K.; Cintra,C.A.; Assis,A.R.; Vicente,W.R.R.; Feliciano,M.A.R..
ABSTRACT This case report describes diagnostic and prognostic applicability of pulmonary acoustic radiation force impulse elastography and ultrasonography in canine hydrops fetalis. We also explore these methods’ potential in prediction of postnatal respiratory dysfunction. Two pregnant bitches (English bulldog [case 1] and French bulldog [case 2]) were referred for sonographic evaluation in their last week of pregnancy. Ultrasound showed that in each bitch, one fetus presented with lung alterations (hyperechogenicity, irregular surface, and pleural effusion) and anasarca. The other fetuses of the litter were normal, and they were observed as light gray and dark blue on pulmonary elastography. Their shear-wave velocity was 0.75m/s. Fetuses with hydrops...
Tipo: Info:eu-repo/semantics/report Palavras-chave: Canine; Gestational ultrasonography; Fetal abnormalities.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352018000501409
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Ultrasonographic diagnosis of twins in two pregnant bitches: case report Arq. Bras. Med. Vet. Zootec.
Pavan,L.; Gasser,B.; Santos,V.J.C.; Maronezi,M.C.; Silva,P.; Assis,A.R.; Garcia,P.H.S.; Martins Junior,R.; Uscategui,R.A.R.; Feliciano,M.A.R..
ABSTRACT Multiple pregnancies in humans account for only 3% of pregnancies, 97-98% of which are twin pregnancies and the morbimortality is higher in the monochorionic twins when compared to dichorionic ones. The canine species is naturally multiparous, but the diagnosis of monochorionic twin pregnancy is not common. The objective of this report was to describe the ultrasonographic diagnosis of monochorionic twin pregnancies in two bitches [Pug (case 1) and Shih tzu (case 2)]. It was possible to verify the presence of one gestational vesicle containing two fetuses in each female by observing two heads or two bodies within the same placental site. These fetuses presented adequate viability and normal organogenesis. Their development was similar to the other...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Gemelar pregnancy; Monochorionic; Canine fetus.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352020000100102
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Doppler and Elastography as complementary diagnostic methods for mammary neoplasms in female cats Arq. Bras. Med. Vet. Zootec.
Feliciano,M.A.R.; Maronezi,M.C.; Brito,M.B.S.; Simões,A.P.R.; Maciel,G.S.; Castanheira,T.L.L.; Garrido,E.; Uscategui,R.R.; Miceli,N.G.; Vicente,W.R.R..
Objetivou-se descrever a utilização das técnicas Doppler e elastografia ARFI (acoustic radiation force impulse) na avaliação de neoplasias mamárias de gatas, métodos ainda não utilizados para tal estudo em fêmeas felinas. Após a avaliação física e específica das neoplasias mamárias de duas gatas, foram realizadas as avaliações ultrassonográfica modo-B (ecogenicidade, ecotextura e margeamento), Doppler colorido (característica do fluxo sanguíneo) e espectral (velocidade sistólica/VS; diastólica/VD; e índice de resistência/IR) e a eslatografia ARFI qualitativa (escala de cores) e quantitativa (velocidade de cisalhamento) dos nódulos mamários, avaliando a aplicabilidade destas técnicas para determinar a malignidade dos tumores mamários. Após mastectomia e...
Tipo: Info:eu-repo/semantics/other Palavras-chave: Feline; Mammary ultrasonography; Elastography.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352015000300935
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B-mode and Doppler ultrasonography of adrenal glands of healthy dogs Arq. Bras. Med. Vet. Zootec.
Fernandez,S.; Feliciano,M.A.R.; Crivellenti,S.B.; Crivellenti,L.Z.; Simões,A.P.R.; Maronezi,M.C.; Uscategui,R.R.; Capela,C.R.; Gilor,C.; Santana,A.E.; Vicente,W.R.R..
ABSTRACT The aim of this study was to determine the vascular indices of adrenal blood flow in healthy dogs (systolic velocity - SV; diastolic velocity - DV; resistance index - RI). Eighteen dogs (thirty six adrenal) were studied. Physical examination, biochemical profile and dexamethasone suppression test were performed to determine general health status. Echotexture, size, contours and margins, and overall shape of the adrenal gland (right and left) were assessed via ultrasound. By spectral Doppler of the phrenic-abdominal artery, the SV, DV, and RI were acquired. Animals did not show alterations in clinical and laboratory examination and suppression of cortisol. Normal homogeneous and echotexture, regular contours and margins and normal shape and size...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Canine; Adrenal glands; Ultrasound; Vascularization.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352016000400907
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Acoustic radiation force impulse (ARFI) elastography of adrenal glands in healthy adult dogs Arq. Bras. Med. Vet. Zootec.
Fernandez,S.; Feliciano,M.A.R.; Borin-Crivellenti,S.; Crivellenti,L.Z.; Maronezi,M.C.; Simões,A.P.R.; Silva,P.D.A.; Uscategui,R.R.; Cruz,N.R.N.; Santana,A.E.; Vicente,W.R.R..
ABSTRACT To describe the ARFI elastography in the evaluation of the adrenal glands in adult dogs, to evaluate the stiffness of adrenal parenchyma and to determine the qualitative and quantitative standards of the ARFI technique, which have not yet been described in veterinary medicine. Sixty adrenal glands from thirty healthy adult dogs were evaluated by B-mode and qualitative and quantitative ARFI elastography to assess the stiffness of healthy parenchyma and to determine the quality and quantity (shear velocity) standards of ARFI technique in body, cranial and caudal adrenal poles. Findings of ultrasonography evaluations were normal. Qualitative elastography showed that adrenal glands were not deformable and presented homogeneous middle-gray areas. The...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Canine; Adrenal; Ultrasound.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352017000200340
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Spleen evaluation using contrast enhanced ultrasonography and Doppler in dogs with subclinical ehrlichiosis Arq. Bras. Med. Vet. Zootec.
Maronezi,M.C.; Feliciano,M.A.R.; Crivellenti,L.Z.; Borin-Crivellenti,S.; Silva,P.E.S.; Zampolo,C.; Pavan,L.; Gasser,B.; Simões,A.P.R.; Maciel,G.S.; Canola,J.C.; Vicente,W.R.R..
The aim of this study was to evaluate the splenic parenchyma of dogs with subclinical ehrlichiosis using Doppler and contrast-enhanced ultrasonography and provide reference values for this organ in affected animals. Seventeen dogs naturally infected with E. canis were selected for this study. Splenic parenchyma echotexture and echogenicity, size and borders were determined by ultrasound scan. The vascular indices of the splenic artery were determined by Doppler. SonoVue, at 0.1mL per animal, was used in microbubble contrast-enhanced ultrasonography to determine wash in, wash out and peak enhancement time in the splenic tissue. B-mode ultrasonography revealed splenomegaly with rounded borders, heterogeneous echotexture and mixed echogenicity. The vascular...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Canine; Ehrlichiosis; Ultrasound.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352015000601528
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Acoustic radiation force impulse elastography of the eyes of brachycephalic dogs Arq. Bras. Med. Vet. Zootec.
Abreu,T.G.M.; Feliciano,M.A.R.; Renzo,R.; Kobashigawa,K.K.; Chacaltana,F.D.Y.C.; Crivelaro,R.M.; Silveira,C.P. B.; Cruz,N.R.N.; Aldrovani,M.; Maronezi,M.C.; Silva,P.A.; Thiesen,R.; Laus,J.L..
ABSTRACT Eyes from brachycephalic dogs were studied by acoustic radiation force impulse (ARFI) elastography to establish quantitative and qualitative reference values related to the shape and rigidity of some ocular structures. Eighty-four eyes from 42 adult brachycephalic dogs were included in this study. Animals were subjected to physical, laboratory, and ophthalmic examinations. Following confirmation of good health, the dogs were subjected to ultrasonography and ARFI elastography, emphasizing the optic nerve, ciliary body, and lens. On qualitative elastography, homogeneous characteristics were observed on the ciliary body and optic nerve. Aqueous and vitreous humors were visualized as mosaic-like images. Quantitative elastography showed the mean optic...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Canine; Ocular structures; Ultrasound.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352018000401045
Registros recuperados: 8
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