Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/69895
Title: Computed tomography and magnetic resonance imaging study of a normal tarsal joint in a Bengal tiger (Panthera tigris)
Authors: Arencibia Espinosa, Alberto 
Matos, Jorge 
Encinoso, Mario
Gil, Francisco
Artiles, Alejandro
Martínez-Gomariz, Francisco
Vázquez Autón, José Maria 
UNESCO Clasification: 310907 Patología
3105 Peces y fauna silvestre
Keywords: Anatomy
Computed Tomography
Magnetic Resonance Imaging
Tarsal Joint
Tiger
Issue Date: 2019
Journal: Bmc Veterinary Research 
Abstract: In this research, using computed tomography (CT) and magnetic resonance imaging (MRI), we provide a thorough description of the standard appearance of a right tarsal joint in a Bengal tiger (Panthera tigris). CT scans were performed using a bone and soft tissue window setting, and three-dimensional surface reconstructed CT images were obtained. The MRI protocol was based on the use of Spin-echo (SE) T1-weighted and Gradient-echo (GE) STIR T2-weighted pulse sequences. Magnetic resonance (MR) images were taken in the transverse, sagittal and dorsal planes. We also performed anatomical dissections to facilitate the interpretation of the different structures of the tarsus joint and allow comparisons with CT and MRI images. Results: The CT images allowed us to observe differences between the bones and soft tissues of the tarsal joint. When applying the bone window setting, the obtained footage showed the anatomy between the medulla and cortex. Additionally, the trabecular bone was delineated. By contrast, the soft tissue window allowed the main soft tissue structures of the tarsal joint, including ligaments, muscles and tendons, to be differentiated. Footage of the main anatomical structures of the standard tiger tarsus was obtained through MRI. The SE T1-weighted images showed the best evaluation of the cortical, subchondral and trabecular bone of the tibia, fibula, tarsus and metatarsus bones. Nonetheless, the GE STIR T2-weighted images allowed us to better visualize the articular cartilage and synovial fluid. In both MRI pulse sequences, the ligaments and tendons appeared with low signal intensity compared with muscles that were visible with intermediate signal intensity. Conclusions: The results of this CT and MRI study of the Bengal tiger tarsal joint provide some valuable anatomical information and may be useful for diagnosing disorders in this large non-domestic cat.
URI: http://hdl.handle.net/10553/69895
ISSN: 1746-6148
DOI: 10.1186/s12917-019-1865-1
Source: BMC Veterinary Research [ISSN 1746-6148], v. 15 (1), 126 (2019)
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