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带纹长尾鲨（Triakis scyllium）的横断面解剖学、计算机断层扫描和磁共振成像。

Cross-sectional anatomy, computed tomography, and magnetic resonance imaging of the banded houndshark (Triakis scyllium).

机构信息

College of Veterinary Medicine and the Research Institute for Veterinary Science, Seoul National University, Seoul, 08826, Republic of Korea.

Department of Surgery, Queen Mary Hospital, Pokfulam, Hong Kong Special Administrative Region, China.

出版信息

Sci Rep. 2021 Jan 13;11(1):1165. doi: 10.1038/s41598-020-80823-y.

DOI:10.1038/s41598-020-80823-y
PMID:33441855
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7806778/
Abstract

Due to their important phylogenetic position among extant vertebrates, sharks are an invaluable group in evolutionary developmental biology studies. A thorough understanding of shark anatomy is essential to facilitate these studies and documentation of this iconic taxon. With the increasing availability of cross-sectional imaging techniques, the complicated anatomy of both cartilaginous and soft tissues can be analyzed non-invasively, quickly, and accurately. The aim of this study is to provide a detailed anatomical description of the normal banded houndshark (Triakis scyllium) using computed tomography (CT) and magnetic resonance imaging (MRI) along with cryosection images. Three banded houndsharks were scanned using a 64-detector row spiral CT scanner and a 3 T MRI scanner. All images were digitally stored and assessed using open-source Digital Imaging and Communications in Medicine viewer software in the transverse, sagittal, and dorsal dimensions. The banded houndshark cadavers were then cryosectioned at approximately 1-cm intervals. Corresponding transverse cryosection images were chosen to identify the best anatomical correlations for transverse CT and MRI images. The resulting images provided excellent detail of the major anatomical structures of the banded houndshark. The illustrations in the present study could be considered as a useful reference for interpretation of normal and pathological imaging studies of sharks.

摘要

由于鲨鱼在现存脊椎动物中的重要系统发育地位，它们在进化发育生物学研究中是一个非常有价值的群体。深入了解鲨鱼的解剖结构对于促进这些研究和对这个标志性类群的记录是至关重要的。随着横截面成像技术的日益普及，软骨和软组织的复杂解剖结构可以非侵入性、快速且准确地进行分析。本研究的目的是使用计算机断层扫描（CT）和磁共振成像（MRI）以及冷冻切片图像，对条纹斑竹鲨（Triakis scyllium）进行详细的解剖描述。使用 64 排螺旋 CT 扫描仪和 3T MRI 扫描仪对 3 条条纹斑竹鲨进行了扫描。所有图像均以数字形式存储，并使用开源的数字成像和通信医学查看器软件在横断、矢状和背侧方向进行评估。然后，将条纹斑竹鲨尸体每隔约 1 厘米进行冷冻切片。选择相应的横断冷冻切片图像，以确定横断 CT 和 MRI 图像的最佳解剖学相关性。得到的图像提供了条纹斑竹鲨主要解剖结构的极好细节。本研究中的插图可被视为解释鲨鱼正常和病理成像研究的有用参考。

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