Al Mohamad Zakriya Ali, Hagag Usama, Tawfiek Mohamed Gomaa, El Nahas Ayman
Department of Clinical Sciences, College of Veterinary Medicine, King Faisal University, PO Box 400, 31982, Al-Ahasa, Kingdom of Saudi Arabia.
Department of Surgery, Anesthesiology and Radiology, Faculty of Veterinary Medicine, Beni-Suef University, 62511, Beni-Suef, Egypt.
BMC Vet Res. 2021 Mar 2;17(1):101. doi: 10.1186/s12917-021-02811-2.
Magnetic resonance imaging (MRI) is the most versatile and informative imaging modality for the diagnosis of locomotor injuries in many animal species; however, veterinary literature describing the MRI of the dromedary camel tarsus is lacking. Our purpose was to describe and compare the MRI images of twelve cadaveric tarsi, examined in a 1.5 Tesla MRI scanner, with their corresponding anatomical gross sections. Turbo spin-echo (TSE) T1-weighted (T1), T2-weighted (T2), proton density-weighted (PD), and short tau inversion recovery (STIR) sequences were obtained in 3 planes. Tarsi were sectioned in sagittal, dorsal, and transverse planes. MRI images from different sequences and planes were described and compared with the anatomical sections.
The soft and osseous tissues of the dromedary camel tarsus could be clearly defined on MRI images and corresponded extensively with the gross anatomic sections. The obtained MRI images enabled comprehensive assessment of the anatomic relationships among the osseous and soft tissues of the camel tarsus. Several structure were evaluated that cannot be imaged using radiography or ultrasonography, including the transverse inter-tarsal ligaments, the talocalcaneal ligament, the short dorsal ligament, branches of the short medial and lateral collateral ligaments and the tarsometatarsal ligaments. Specific anatomical features regarding the dromedary camel tarsus were identified, including the fused second and third tarsal bone, an additional bundle of the short medial collateral ligament connecting the talus and metatarsus and the medial and lateral limbs of the long plantar ligament.
MRI images provided a thorough evaluation of the normal dromedary camel tarsus. Information provided in the current study is expected to serve as a basis for interpretation in clinical situations.
磁共振成像（MRI）是诊断多种动物运动损伤最通用且信息丰富的成像方式；然而，缺乏描述单峰驼跗关节MRI的兽医文献。我们的目的是描述并比较在1.5特斯拉MRI扫描仪中检查的12个尸体跗关节的MRI图像与其相应的解剖大体切片。在三个平面上获得了快速自旋回波（TSE）T1加权（T1）、T2加权（T2）、质子密度加权（PD）和短tau反转恢复（STIR）序列。跗关节在矢状面、背侧和横断面上进行切片。描述了来自不同序列和平面的MRI图像，并与解剖切片进行比较。
单峰驼跗关节的软组织和骨组织在MRI图像上能够清晰界定，并且与大体解剖切片广泛对应。所获得的MRI图像能够全面评估骆驼跗关节骨组织和软组织之间的解剖关系。评估了几个使用X射线摄影或超声检查无法成像的结构，包括跗间横韧带、距跟韧带、背侧短韧带、内侧和外侧副韧带分支以及跗跖韧带。确定了关于单峰驼跗关节的特定解剖特征，包括第二和第三跗骨融合、连接距骨和跖骨的内侧副韧带额外束以及足底长韧带的内侧和外侧肢。
MRI图像提供了对正常单峰驼跗关节的全面评估。本研究提供的信息有望作为临床情况下解读的基础。
