2014
DOI: 10.21836/pem20140407
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3 Tesla magnetic resonance imaging of the nasal cavities, paranasal sinuses and adjacent anatomical structures in 13 healthy horses

Abstract: Summary:The nasal cavities and paranasal sinuses of 13 healthy horses of different breeds aged 4 to 20 years were examined under general anaesthesia using 3 Tesla magnetic resonance imaging (MRI). Horses were positioned in dorsal recumbency. T2-weighted images were obtained in a transversal and dorsal orientation as well as T1-weighted images and proton density weighted images in a transversal orientation. Images were examined for the visualization of the nasal cavities, paranasal sinuses and adjacent anatomic… Show more

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Cited by 4 publications
(7 citation statements)
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“…The image quality of MRI in the present study was comparable to that of CT, but was better for bony tissues in CT and for soft tissues in MRI. The present results correspond with the findings of Gerlach et al [ 36 ] and Kaminsky et al [ 10 ], who proved the excellent quality of MRI in portraying the dental pulp, PDL, bone-marrow, gingiva, facial soft tissue, sinus mucosa, infraorbital nerve and vessels, owing to a high water content and hydrogen atoms. There was no detectable MRI signal from hard dental tissues, cortical bone, lamina dura and the IOC, whereas these structures could be visualised with good detail resolution by CT acquisition.…”
Section: Discussionsupporting
confidence: 92%
See 1 more Smart Citation
“…The image quality of MRI in the present study was comparable to that of CT, but was better for bony tissues in CT and for soft tissues in MRI. The present results correspond with the findings of Gerlach et al [ 36 ] and Kaminsky et al [ 10 ], who proved the excellent quality of MRI in portraying the dental pulp, PDL, bone-marrow, gingiva, facial soft tissue, sinus mucosa, infraorbital nerve and vessels, owing to a high water content and hydrogen atoms. There was no detectable MRI signal from hard dental tissues, cortical bone, lamina dura and the IOC, whereas these structures could be visualised with good detail resolution by CT acquisition.…”
Section: Discussionsupporting
confidence: 92%
“…Modern imaging techniques, such as computed tomography (CT) and magnetic resonance imaging (MRI), offer the benefit of producing three-dimensional (3D) images without superimposition and the possibility of multiplanar reconstructions (MPRs). Both CT and MRI are viable imaging modalities for evaluating the head in human [ 2 4 ] and veterinary medicine [ 5 10 ]. The well-established CT provides a good spatial resolution and excellent delineation of bony tissue [ 11 ], but is limited due to its inability to visualise pulpar and periodontal tissue with detailed resolution [ 12 ].…”
Section: Introductionmentioning
confidence: 99%
“…The authors of the current study agree with other investigations [11, 15, 31] that MRI is an ideal non-invasive technique to display soft tissue structures due to the increased water content of the latter. Consequently, MRI provided good to excellent visibility and differentiation scores for the soft and periodontal dental tissue detail and contrast, such as the pulp, PDL, mucosa of the sinuses, and infra-orbital nerve and vessels.…”
Section: Discussionsupporting
confidence: 92%
“…Consequently, MRI provided good to excellent visibility and differentiation scores for the soft and periodontal dental tissue detail and contrast, such as the pulp, PDL, mucosa of the sinuses, and infra-orbital nerve and vessels. A benefit of this ability to depict delicate soft tissues such as the infra-orbital nerve and its content, in clinical cases is that previously undetected pathologies may be visualized [31] even before they become visible with osseous changes in the CT.…”
Section: Discussionmentioning
confidence: 99%
“…According to the histological appearance of the respiratory mucosa, former literature describes a reduction of mucosal thickness between the nasal cavity and the paranasal sinuses in horses based on histological and radiologic assessments [3,23,35,38]. The mucosal lining of healthy equine paranasal sinuses, for instance, was invisible in computed tomography images, due to its reduced thickness [35].…”
Section: Discussionmentioning
confidence: 99%