A and B mode ultrasonography in preoperative evaluation of lens and posterior segment of dogs eyes with cataract

Martins, Bianca da Costa; Rodrigues, Emilio Fernandes; Souza, Agda Eunice de; Almeida, Denise E. de; Brito, Fábio Luiz da Cunha; Canola, Júlio Carlos; Brooks, Dennis; Laus, José Luiz

doi:10.1590/s0100-736x2010000200004

Cited by 9 publications

(19 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The results found through ocular conventional ultrasound in dogs with cataracts are in agreement with findings reported by several other authors in veterinary medicine (Gonzalez et al, 2001;Squarzoni et al, 2007;Martins et al, 2010). Conventional ultrasound examination of the eye in animals with cataract is an important step in preoperative evaluation of patients that will be subjected to cataract removal (Martins et al, 2010).…”

Section: Resultssupporting

confidence: 87%

“…Conventional ultrasound examination of the eye in animals with cataract is an important step in preoperative evaluation of patients that will be subjected to cataract removal (Martins et al, 2010).…”

Section: Resultsmentioning

confidence: 99%

“…Values for systolic velocity, pulsatility index and resistive index of the ophthalmic artery evaluated by triplex Doppler in dogs with cataract and in healthy animals (according to Novellas et al, 2007) are exhibited in Table 2. Rankin (1999) reported an increase of resistive indexes of blood flow in animals with glaucoma through Doppler evaluation.…”

Section: Resultsmentioning

confidence: 99%

“…Images obtained from the blood vessels by means of Doppler ultrasound are important for the study of ocular vessels, including ophthalmic artery, anterior ciliary artery, long and short ciliary arteries and primary retinal artery. Among the evaluations, the vascular resistive index (RI) and pulsatility index (PI) have been used to evaluate vascular resistance in canine glaucoma and also for therapeutic effects of systemic anti-hypertensive drugs (Novellas et al, 2007). Gonçalves et al (2008) reported that several ophthalmic diseases such as diabetic retinopathy, glaucoma and hypertension show significant alterations in the ocular vascular pattern.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Contribution of ocular B-mode and triplex Doppler in the evaluation of 10 Poodle dogs with cataracts

Feliciano¹,

Abrahim

Peixoto³

et al. 2013

Arq. Bras. Med. Vet. Zootec.

View full text Add to dashboard Cite

The findings of b-mode and especially triplex Doppler ocular ultrasound in the evaluation of 10 Poodle dogs with cataracts, which bring a contribution not yet reported in veterinary medicine, were reported. Ten Poodle dogs of varied ages and presenting cataracts were used. All animals were evaluated for ophthalmic and ultrasound examination. The ultrasound examination allowed the evaluation of the sonographic anatomy of the eye and measurement of the axial thickness of the lens (ATL). Using the Doppler mode, the blood flow of the ophthalmic artery and its vascular indexes, systolic velocity (SV), resistive index (RI) and pulsatility index (PI) were measured. Values found for ATL were 5.89±1.05 for the right eye (OD) and 6.07±1.32 for the left eye (OS). Values found using Doppler evaluation were SV OD: 26.54±7.05 and SV OS: 29.21±11.18; PI OD: 1.89±0.61 and PI OS: 1.7±0.35; RI OD: 0.76±0.1 and RI OS: 0.72±0.09 (OS). It was concluded that triplex Doppler was important for the determination of vascular indexes of the ophthalmic artery, which can be used for monitoring animals with hemodynamic alterations of the eyes and monitoring the therapy of ocular diseases.Keywords: dog, ocular ultrasound, triplex Doppler, cataract RESUMO Descreveram-se os achados da ultrassonografia ocular convencional e, principalmente, do modo Doppler Triplex na avaliação de 10 cães da raça Poodle com catarata, contribuindo com parâmetros ainda não relatados em medicina veterinária. Foram utilizados 10 cães de diferentes idades e da raça Poodle, apresentando graus variados de catarata. Os animais foram submetidos ao exame oftalmológico e ultrassonográfico. Por meio da ultrassonografia avaliaram-se a anatomia ultrassonográfica dos bulbos oculares e a espessura axial da lente (EAL). Por meio do modo Doppler verificaram-se o tipo de fluxo sanguíneo da artéria oftálmica e seus índices vasculares, a velocidade sistólica (VS), o índice de resistência (RI) e a pulsatividade (PI). Os valores de EAL para olho direito (OD

show abstract

Section: Resultssupporting

confidence: 87%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Contribution of ocular B-mode and triplex Doppler in the evaluation of 10 Poodle dogs with cataracts

Feliciano¹,

Abrahim

Peixoto³

et al. 2013

Arq. Bras. Med. Vet. Zootec.

View full text Add to dashboard Cite

show abstract

“…Ophthalmic ultrasound was feasible in all dogs by manual restraint, sternal recumbency and manual opening of the eyelids (Martins et al, 2010). Thus, sedation and general anesthesia, proposed previously (Schiffer et al, 1982;Hager et al, 1987), did not appear necessary.…”

Section: Resultsmentioning

confidence: 86%

Ophthalmic ultrasound of dogs with different skull conformations

Toni

Meirelles

Laus

et al. 2013

Agraria

View full text Add to dashboard Cite

The aim of this study was to establish mean values for intraocular structures and analyse if the differences are present for different skull conformations in dogs. In this study, 30 dogs were selected and distributed into three groups according to skull conformation; thus, group 1 (G1) was composed of brachycephalic dogs, group 2 (G2) was composed of mesocephalic dogs and group 3 (G3) was composed of dolichocephalic dogs. A and B-mode ultrasound was performed simultaneously for obtainment of measurements relating to anterior chamber depth (D1); lens thickness (D2); vitreous chamber depth (D3); and the axial length of the eye (D4). No differences were observed when comparing left and right eyes of dogs within the same skull conformation group (p>0.05). Differences were observed when comparing D3 and D4 between groups G2 and G3 (p<0.05). Skull conformation of brachycephalic dogs did not influence intraocular measurement values when compared to dolicephalic and mesocephalic dogs. Skull conformation of dolichocephalic dogs had an influence in values of vitreous chamber and the complete length of the eye when compared to mesocephalic dogs.Key words: brachycephalic, dolichocephalic, eye, mesocephalic, ultrasound Ultrassonografia oftálmica em cães com diferentes conformações cranianas RESUMOO objetivo deste estudo foi estabelecer valores médios para as estruturas intraoculares e analisar se existem diferenças entre eles nas diversas conformações cranianas de cães. Foram selecionados 30 cães alocados em três grupos, de acordo com a conformação craniana; assim, o grupo 1 (G1) foi composto por cães braquicefálicos, o grupo 2 (G2) por cães mesocefálicos e o grupo 3 (G3) por cães dolicocefálicos; ultrassonografia em modo A e B foi realizada simultâneamente para obtenção de medidas relacionadas à profundidade de câmara anterior (D1), espessura de lente (D2), profundidade de câmara vítrea (D3) e comprimento axial do bulbo do olho (D4); diferenças não foram observadas quando comparados olhos direitos e esquerdos de cães com mesma conformação craniana (p > 0,05). Diferenças foram constatadas na comparação entre D3 e D4 dos grupos G2 e G3 (p < 0,05); a conformação do crânio braquicefálico não influenciou nos valores das medidas intraoculares quando comparados aos valores encontrados para cães dolicocefálicos e mesocefálicos; a conformação do crânio dolicocefálico influenciou nos valores das medidas intraoculares de profundidade de câmara vítrea e profundidade do bulbo do olho quando comparados aos valores encontrados para cães mesocefálicos.

show abstract