Golder Werner, Christian Andreas
Department of Radiology and Nuclear Medicine, University Hospital, Benjamin Franklin Free University of Berlin, Hindenburgdamm 30, D-12200 Berlin, Germany.
J Comput Assist Tomogr. 2002 Sep-Oct;26(5):821-4. doi: 10.1097/00004728-200209000-00027.
To develop a protocol for CT examinations of fossilized saurian bones and to provide paleontologists with morphometric and densitometric data suitable for functional analysis, four isolated long bones of Tendaguru dinosaurs from the Museum for Natural Sciences of the Humboldt University of Berlin were examined by CT. The demonstration of fossils in the axial CT proved optimal with the window set at a center of 2,640 Hounsfield units (HU) and a width of 1,040 HU. The petrified bones have a maximum density of 3,000 HU. The shape and structure of the skeletal remnants suggest that the extremities of Tendaguru dinosaurs were submitted to mainly compression but nearly no bending stress.
为制定一项关于蜥脚类恐龙化石骨骼CT检查的方案，并为古生物学家提供适合功能分析的形态测量和密度测量数据，我们对柏林洪堡大学自然科学博物馆中4根特兰大古陆恐龙的独立长骨进行了CT检查。轴向CT扫描显示，当窗宽设定为1040亨氏单位（HU）、窗位设定为2640HU时，化石显示效果最佳。石化骨骼的最大密度为3000HU。骨骼残骸的形状和结构表明，特兰大古陆恐龙的四肢主要承受压缩力，但几乎没有弯曲应力。
