Doppler ultrasound of the placenta and maternal and fetal vessels during normal gestation in captive agoutis (Dasyprocta prymnolopha, Wagler, 1831)

Sousa, Francisco das Chagas Araújo; Pessoa, Gerson Tavares; Moura, L.S.; Rodrigues, Renan Paraguassu de Sá; Diniz, A.N.; Souza, André Braga de; Silva, Elzivânia G.; Sanches, Marina Pinto; Silva-Filho, O. F.; Guerra, Porfírio Candanedo; Sousa, J. M. C.; Neves, Willams Costa; Alves, Flávio Ribeiro

doi:10.1016/j.theriogenology.2016.06.006

Cited by 4 publications

(2 citation statements)

References 30 publications

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“…Ultrasonography has been increasingly used in the routine diagnosis of pathological processes in wild species, especially as it is a noninvasive method and allows real-time characterization of abdominal and thoracic structures in these animals (Cruz and Freitas, 2001). A number of studies have addressed the morphological aspects of abdominal structures in wild species such as giant anteaters (Myrmecophaga tridactyla) (Lopes et al, 2015), forest foxes (Cerdocyon thous) (Silva et al, 2014), lowland pacas (Cuniculus paca) (Oliveira et al, 2003(Oliveira et al, , 2007Feliciano et al, 2014), agouti (Dasyprocta prymnolopha) (Sousa et al, 2012(Sousa et al, , 2016(Sousa et al, , 2017, peccaries (Tayassu tajacu) (Peixoto et al, 2012), coatis (Nasua nasua) (Ribeiro et al, 2013), tufted capuchin monkeys (Cebus apella) (Alves et al, 2007), cheetahs (Acinonyx jubatus) (Carstens et al, 2006), and white-tufted-ear marmosets (Callithrix jacchus) (Wagner and Kirberger, 2005).…”

Section: Introductionmentioning

confidence: 99%

B-mode and Doppler ultrasonography of abdominal structures of the peccary (Tayassu tajacu, Linnaeus 1758)

Pessoa

Sousa

Rodrigues

et al. 2021

Arq. Bras. Med. Vet. Zootec.

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This study used B-mode and Doppler ultrasonography to characterize the abdominal structures of healthy peccaries raised in captivity. Fifteen peccaries were used for this study. The urinary vesicle appeared as an ovoid structure, located in the abdominal and pelvic transition, with a hyperechogenic, thin, smooth, and regular wall. The kidneys presented retroperitoneal topography and had similar sizes. The kidney/aorta ratio had an average value of 10.53±15cm (right) and 10.23±0.12 (left). The right adrenal gland had a length of 1.93±0.34cm and diameter of 0.56±0.16cm. The left adrenal gland had a length of 1.85±0.42cm and diameter of 0.52±0.11cm. The spleen had a diameter of 1.13±0.18cm. The hepatic vein demonstrated polyphasic flow in pulsed Doppler, with two retrograde peaks and an anterograde peak with a flow velocity of 25.7±0.83cm/s. The abdominal aorta had a diameter of 0.58±0.05cm and a flow velocity of 115.17±5.32cm/s. The morphological and hemodynamic study of the abdominal structures of the peccary, observed through B-mode and Doppler ultrasonography, aided in identifying the size, shape, position, echogenicity, and echotexture of the abdominal organs and in making inferences about the normal parameters for these structures in this species.

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Section: Introductionmentioning

confidence: 99%

B-mode and Doppler ultrasonography of abdominal structures of the peccary (Tayassu tajacu, Linnaeus 1758)

Pessoa

Sousa

Rodrigues

et al. 2021

Arq. Bras. Med. Vet. Zootec.

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“…Previous ultrasonographic studies on wild species that discuss morphological aspects of abdominal structures include those on ant eaters Myrmecophaga tridactyla (Lopes et al 2015), crab-eating foxes Cerdocyon thous (Silva et al 2014), pacas Cuniculus paca (Oliveira et al 2003, agoutis Dasyprocta prymnolopha (Sousa et al 2012(Sousa et al , 2016(Sousa et al , 2017, coatis Nasua nasua (Ribeiro et al 2013), collared peccary Tayassu tajacu (Peixoto et al 2012), robust capuchin monkey Cebus apella (Alves et al 2007), cheetahs Acinonyx jubatus (Carstens et al 2006) and common marmosets Callithrix jacchus (Wagner & Kirberger 2005).…”

Section: Introductionmentioning

confidence: 99%

Abdominal B-mode and Doppler ultrasonography of chemically restrained agouti (Dasyprocta prymnolopha Wagler, 1831)

et al. 2018

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Agoutis are small-sized wild animals whose body weight can reach up to 4kg, and are found throughout Brazil. They are considered important seed dispersers, especially for big trees and there are species that rely almost exclusively on these animals for their territorial distribution. The objective of the present study was B scan and Doppler ultrasound characterization of the abdominal organs of healthy agoutis reared in captivity. Fifteen agoutis, chemically restrained, were used from the Nucleus for Wild Animal Studies and Conservation (Núcleo de Estudos e Preservação de Animais Silvestres - NEPAS), CCA-UFPI, submitted to B scan and Doppler ultrasound examination. The urinary bladder wall was hyperechogenic, thin, smooth and regular throughout its anatomic path, with 0.09±0.03cm mean thickness. The kidneys showed fine and homogeneous echotexture, preserved global echogenicity, hyperechogenic in relation to the spleen and isoechogenic or discreetly hyperechogenic in relation to the liver. The spectral Doppler trace showed systolic and diastolic peaks, wide and thread-like, with low flow resistance and a continuous and full diastolic portion that decreased gradually during the diastole (75.83±1.42cm/s, for the right kidney and 80.43±1.22cm/s, for the left kidney). The right adrenal gland was 0.61-1.18cm long and 0.17-0.32cm in diameter, while the left adrenal gland was 0.62-1.16 long with 0.14-0.25cm diameter. The agouti spleen was filiform in shape, with pointed poles and 1.02±0.18cm in diameter. The agouti liver occupied all the abdominal cavity cranial space in direct contact with the diaphragm. The intrahepatic vascular flow allowed individualization of the portal vein (PV) and hepatic vein (HV). The portal veins were distinguished from the hepatic veins mainly by their wall echogenic pattern. The pancreas was 0.51±0.1 cm thick and the pancreatic duct measured 0.12±0.02cm. The stomach was placed to the left the spleen and to the right of the proximal intestine and the transversal colon and the walls were 0.16±0.05cm thick. The abdominal aorta was 0.43±0.04cm in diameter and showed 95.2±2.16cm/s vascular flow. This study characterized agouti organs and abdominal blood vessels by B scan and Doppler ultrasound, that permitted definition of the size, shape, position, echogenicity and echotexture of the anatomic constituents and established reference values for the vascular network and blood flow in the species.

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First-trimester screening for fetal growth restriction using Doppler color flow analysis of the uterine artery and serum PAPP-A levels in unselected pregnancies

Zhou

2020

The Journal of Maternal-Fetal & Neonatal Medicine

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Doppler ultrasound of the placenta and maternal and fetal vessels during normal gestation in captive agoutis (Dasyprocta prymnolopha, Wagler, 1831)

Cited by 4 publications

References 30 publications

B-mode and Doppler ultrasonography of abdominal structures of the peccary (Tayassu tajacu, Linnaeus 1758)

B-mode and Doppler ultrasonography of abdominal structures of the peccary (Tayassu tajacu, Linnaeus 1758)

Abdominal B-mode and Doppler ultrasonography of chemically restrained agouti (Dasyprocta prymnolopha Wagler, 1831)

First-trimester screening for fetal growth restriction using Doppler color flow analysis of the uterine artery and serum PAPP-A levels in unselected pregnancies

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