Diagnostic Imaging of Peripheral Vestibular Disease in a Chinese Goose (<i>Anser cygnoides</i>)

Delk, Katie W.; Mejia-Fava, Johanna; Jiménez, David; Kent, Marc; Myrna, Kathern E.; Mayer, Jörg; Divers, Stephen J.

doi:10.1647/1082-6742-28.1.31

Cited by 12 publications

(11 citation statements)

References 6 publications

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“…Magnetic resonance imaging has been proven to be useful to assess chronic sinonasal diseases in psittacine birds, diagnose hydrocephalus in African grey parrots, and has been shown to be superior to radiography in evaluating spinal cord trauma in three bald eagles . Magnetic resonance imaging has been used to diagnose a peripheral nerve sheath tumor in a subadult eagle and peripheral vestibular disease in a Chinese goose . Recently, a pilot study has demonstrated the usefulness of MRI in the detection of brain lesions caused by severe lead poisoning in bald eagles .…”

Section: Introductionmentioning

confidence: 99%

3.0 Tesla magnetic resonance imaging anatomy of the central nervous system, eye, and inner ear in birds of prey

Stańczyk

Gallego

Nowak

et al. 2018

Vet Radiology Ultrasound

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Despite the increasing interest in the clinical neurology of birds, little is known about the magnetic resonance imaging (MRI) appearance of the avian central nervous system, eye, and inner ear. The objective of this cadaveric study was to document the MRI anatomic features of the aforementioned structures using a high-resolution 3.0 Tesla MRI system. The final study group consisted of 13 cadavers of the diurnal birds of prey belonging to six species. Images were acquired in sagittal, dorsal, and transverse planes using T1-weighted and T2-weighted turbo spin echo sequences. A necropsy with macroscopic analysis of the brain and spinal cord was performed on all cadavers. Microscopic examination of the brain was performed on one cadaver of each species; the spinal cord was examined in three subjects. Anatomic structures were identified on the magnetic resonance images based on histologic slices and available literature. Very good resolution of anatomic detail was obtained. The olfactory bulbs; cerebral hemispheres; diencephalon; optic lobe; cerebellum; pons; ventricular system; optic, trigeminal, and facial nerves; pineal and pituitary glands; as well as the semicircular canals of the inner ear were identified. Exquisite detail was achieved on the ocular structures. In the spinal cord, the gray and white matter differentiation and the glycogen body were identified. This study establishes normal MRI anatomy of the central nervous system, eye, and inner ear of the birds of prey; and may be used as a reference in the assessment of neurologic disorders or visual impairment in this group of birds.

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Section: Introductionmentioning

confidence: 99%

3.0 Tesla magnetic resonance imaging anatomy of the central nervous system, eye, and inner ear in birds of prey

Stańczyk

Gallego

Nowak

et al. 2018

Vet Radiology Ultrasound

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“…Several publications of CT and MRI anatomy in avian species exist. However, those are mainly focused on sinonasal cavities, eyes, head/brain, respiratory tract or spine (de Francisco et al, 2016; Delk et al, 2014; Fleming et al, 2003; Gumpenberger & Henninger, 2001; Gumpenberger & Kolm, 2006; Jones et al, 2019; Krautwald‐Junghanns et al, 1998; Krautwald‐Junghanns et al, 1993; Petnehazy et al, 2012; Pye et al, 2000; Romagnano et al, 1996; Schwarz et al, 2016; Stauber et al, 2007; Verhoye et al, 1998; Wernick et al, 2014) and rarely in the coelomic cavity (Orosz & Toal, 1992; Petnehazy et al, 2012; Romagnano et al, 1996). In the present study, the CT and MRI anatomy of the coelomic cavity in Pekin ducks was provided and corresponding frozen cadaver section photos were provided for CT images.…”

Section: Discussionmentioning

confidence: 99%

Computed tomographic and magnetic resonance imaging anatomy of the coelomic cavity in market‐age commercial Pekin Ducks (Anas platyrhynchos domesticus)

Abraham

Wakamatsu

Lossie

et al. 2023

Anat Histol Embryol

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Approximately 27 million ducks are raised commercially in the US each year and Pekin ducks (Anas platyrhynchos domesticus) are the most commonly raised breed. Additionally, an increasing number of Americans are raising small flocks of poultry, which often include ducks, in their own backyards. This creates a need to better understand the imaging anatomy of ducks. However, in avian species, superimposition of organs limits evaluation of the coelomic cavity using the most common imaging modality, radiography. The use of cross‐sectional imaging including computed tomography (CT) and magnetic resonance imaging (MRI) has increased in veterinary medicine research and clinical use. An anatomic atlas is essential for guiding research and diagnostic imaging. To date, no CT or MRI atlas exists for Pekin ducks. The purpose of the study is to generate a CT atlas of market‐age Pekin ducks as well as CT attenuation values and measurements of coelomic organs with corresponding gross and MRI images. A total of 20 market‐age, commercial Pekin ducks were imaged. Five male and five female ducks were imaged with CT; four of these ten ducks, two male and two female, were frozen and sliced in approximately 5 mm transverse sections for gross anatomic reference images. Six additional ducks, three male and three female ducks, were dissected to measure major organs. Four additional ducks were imaged using CT and MRI and necropsied for gross anatomical comparisons and landmarks. The atlas contained here may be used for future research projects and clinically to aid in diagnosis of disease in ducks.

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“…Once cholesteatoma in the bulla (1) was dissected (2), and all visible disease excised, the inflamed mucosal lining of the bulla is visible (3) with difficulty in finding surgical landmarks 14 and a high risk of complications, 15 and so we have used the endoscope to potentially reduce such risks (video of endoscopic dissection for chronic otitis media in a cat at www.youtube.com/watch?v=t-caPNIgXr&t= 24s). Chronic otitis media has previously been treated surgically in rabbit, 16 alpaca, 17 llama, 18 bison, 19 bongo antelope 20 and goose, 21 and so endoscopic assistance could prove helpful for bulla procedures in a number of species, as well as image guidance when the bulla is difficult to locate. However, we recognise that cost may preclude wider uptake of such systems.…”

Section: Discussionmentioning

confidence: 99%

Endoscope and image‐guided ventral bulla osteotomy in the dog: A cadaveric and patient study

Bhutta

Morrison

Kureshi³

2021

Veterinary Record

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Background: Surgery of the bulla in the dog can be difficult and associated with suboptimal resolution of disease and risk of complications, particularly in treatment of cholesteatoma. We explored use of image guidance and endoscopic assistance in ventral bulla osteotomy (VBO), initially with cadaveric studies and subsequently on dogs with cholesteatoma. Methods: For surgical approach we used cone beam CT with an optical image navigation system. For endoscopic surgery we used 4 mm and 2.7 mm diameter endoscopes and a camera viewing system, with micro‐instruments for dissection. Results: Image guidance allowed us to accurately identify and approach the bulla in cadavers (n = 2) and patients (n = 2). The endoscope enabled us to define detailed endoscopic anatomy in cadaveric canine heads (n = 15), and in patients (n = 5) it enabled reliable and safe removal of pathological tissue. Conclusion: Image and endoscopic assistance could be a significant advance to the reliability and safety of VBO. Our techniques may be applicable to other indications and species.

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Diagnostic Imaging of Peripheral Vestibular Disease in a Chinese Goose (Anser cygnoides)

Cited by 12 publications

References 6 publications

3.0 Tesla magnetic resonance imaging anatomy of the central nervous system, eye, and inner ear in birds of prey

3.0 Tesla magnetic resonance imaging anatomy of the central nervous system, eye, and inner ear in birds of prey

Computed tomographic and magnetic resonance imaging anatomy of the coelomic cavity in market‐age commercial Pekin Ducks (Anas platyrhynchos domesticus)

Endoscope and image‐guided ventral bulla osteotomy in the dog: A cadaveric and patient study

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