<scp>T2</scp>‐weighted turbo spin‐echo magnetic resonance imaging of canine brain anatomy at 1.<scp>5T</scp>, <scp>3T</scp>, and <scp>7T</scp> field strengths

Jacqmot, Olivier; Thielen, Bert Van; Hespel, Adrien‐Maxence; Luijten, Peter R.; Mey, Johan De; Binst, Anne Van; Provyn, Steven; Tresignie, Jonathan

doi:10.1002/ar.24724

Cited by 3 publications

(1 citation statement)

References 42 publications

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“…They offer exceptionally high spatial resolution, enabling detailed imaging of anatomical structures and biological processes on a microscopic scale. However, they are less common in clinical settings due to concerns about safety and cost [ 10 , 11 , 12 , 13 ].…”

Section: Introductionmentioning

confidence: 99%

Texture Analysis of Temporomandibular Joint Disc Changes Associated with Effusion Using Magnetic Resonance Images

Girondi,

de Castro Lopes,

Ogawa

et al. 2024

Dentistry Journal

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The purpose of this study was to identify changes in the temporomandibular joint disc affected by effusion by using texture analysis of magnetic resonance images (MRIs). Methods: A total of 223 images of the TMJ, 42 with joint effusion and 181 without, were analyzed. Three consecutive slices were then exported to MaZda software, in which two oval ROIs (one in the anterior band and another in the intermediate zone of the joint disc) were determined in each slice and eleven texture parameters were calculated by using a gray-level co-occurrence matrix. Spearman’s correlation coefficient test was used to assess the correlation between texture variables and to select variables for analysis. The Mann–Whitney test was used to compare the groups. Results: The significance level was set at 5%, with the results demonstrating that there was no high correlation between the parameter directions. It was possible to observe a trend between the average parameters, in which the group with effusion always had smaller values than the group without effusion, except for the parameter measuring the difference in entropy. Conclusion: The trend towards lower overall values for the texture parameters suggested a different behavior between TMJ discs affected by effusion and those not affected, indicating that there may be intrinsic changes.

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Section: Introductionmentioning

confidence: 99%

Texture Analysis of Temporomandibular Joint Disc Changes Associated with Effusion Using Magnetic Resonance Images

Girondi,

de Castro Lopes,

Ogawa

et al. 2024

Dentistry Journal

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Ex vivo susceptibility-weighted imaging anatomy of canine brain–comparison of imaging and histological sections

et al. 2022

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Now that access of large domestic mammals to high-field MRI becomes more common, techniques initially implemented for human patients can be used for the structural and functional study of the brain of these animals. Among them, susceptibility-weighted imaging (SWI) is a recent technique obtained from gradient echo (GE) imaging that allow for an excellent anatomical tissue contrast and a non-invasive assessment of brain iron content. The goal of this study was to design an optimal GE SWI imaging protocol to be used in dogs undergoing an MRI examination of the brain in a 3-Tesla scanner. This imaging protocol was applied to ex vivo brains from four dogs. The imaging protocol was validated by visual inspection of the SWI images that provided a high anatomical detail, as demonstrated by their comparison with corresponding microscopic sections. As resolvable brain structures were labeled, this study is the first to provide an anatomic description of SWI images of the canine brain. Once validated in living animals, this GE SWI imaging protocol could be easily included in routine neuroimaging protocols to improve the diagnosis of various intracranial diseases of dogs, or be used in future comparative studies aiming at evaluating brain iron content in animals.

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NEUROANATOMY, DIGITAL ATLASES, AND TEMPLATES OF BRAINS OF DOMESTIC ANIMALS (CAT, DOG, PIG, HORSE and SHEEP) USING MAGNETIC RESONANCE IMAGING

Aydoğdu

2024

Veteriner Farmakoloji Ve Toksikoloji Derneği Bülteni

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Over the last two decades, neuroscience has witnessed an explosion in the utilization of non-invasive imaging methods (particularly MRI) that are used to investigate to study the brain. Providing accurate and detailed imaging, MRI has a significant impact in figuring out the neuroanatomy and functioning of the brain. In recent years, researchers studying on veterinary science have seen MRI an indispensable tool for themselves. It is essential to understand the anatomy of the normal brain in order to explain many of the pathological processes. This review focused on neuroanatomical studies, atlases and templates generated from the brains of domestic animals (cat, dog, pig, horse, donkey, cattle, sheep, goat, camel) using MRI from the 1980s to the present. Its data were summarized under three main parts. Firstly, the cross-sectional anatomy of the brain created using MRI was examined. Afterwards, digital atlases and templates, which have had an essential place in modern neuroimaging analysis (such as registration, segmentation and three-dimensional reconstruction) in recent years, were summarized. Finally, in vivo or ex vivo studies in which crucial white matter tracts in the brain are three-dimensionally modeled with DTI (Diffusion Tensor Imaging) in domestic animals were reviewed. Several studies examining the neocortex by DTI were also included in the review in this section. There were also neuroanatomy studies conducted with MRI in the several specific species in this review. MRI is one of the most successful imaging techniques known for non-invasive, high-resolution brain imaging in neuroimaging. The aim of this study is to guide researchers studying in veterinary science to investigate the brain of domestic animals with MRI.

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T2‐weighted turbo spin‐echo magnetic resonance imaging of canine brain anatomy at 1.5T, 3T, and 7T field strengths

Cited by 3 publications

References 42 publications

Texture Analysis of Temporomandibular Joint Disc Changes Associated with Effusion Using Magnetic Resonance Images

Texture Analysis of Temporomandibular Joint Disc Changes Associated with Effusion Using Magnetic Resonance Images

Ex vivo susceptibility-weighted imaging anatomy of canine brain–comparison of imaging and histological sections

NEUROANATOMY, DIGITAL ATLASES, AND TEMPLATES OF BRAINS OF DOMESTIC ANIMALS (CAT, DOG, PIG, HORSE and SHEEP) USING MAGNETIC RESONANCE IMAGING

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