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DiceCT applied to fossilized hard tissues: A preliminary case study using a miocene bird

文献类型：期刊论文

作者Bailleul, Alida M.1,2; Lu, Jing1,2; Li, Zhiheng1,2
刊名JOURNAL OF EXPERIMENTAL ZOOLOGY PART B-MOLECULAR AND DEVELOPMENTAL EVOLUTION
出版日期2021-03-05
页码12
关键词computed tomography diceCT fossil bone fossil bird fossil cartilage iodine– ethanol miocene
ISSN号1552-5007
DOI10.1002/jez.b.23037
通讯作者Bailleul, Alida M.(alida.bailleul@ivpp.ac.cn) ; Li, Zhiheng(lizhiheng@ivpp.ac.cn)
英文摘要Iodine-based contrasting agents for computed tomography (CT) have been used for decades in medicine. Agents like Lugol's iodine enhance the contrasts between soft tissues and mineralized (skeletal) tissues. Because a recent study on extant avian heads showed that iodine-ethanol (I2E) is a better contrast enhancer overall than the standard Lugol's iodine, here, we tested if I2E could also enhance the CT contrasts of two fossilized skeletal tissues: bone and calcified cartilage. For this, we used a partial ankle joint from an extinct pheasant from the Late Miocene of Northwest China (Linxia Basin). The pre-staining CT scans showed no microstructural details of the sample. After being immersed into a solution of 1% I2E for 8 days and scanned a second time, the contrasts were drastically enhanced between the mineralized tissues (bony trabeculae and calcified cartilage) and the sediments and minerals inside vascular spaces. After three other staining-scanning cycles in 2%, 3%, and 6% I2E solutions, the best contrasts were obtained after immersion in 6% I2E for 7 days. Energy Dispersive Spectroscopy showed that iodine was preferentially absorbed by the mineralized tissues and the minerals in the vascular spaces, but not by the sediments. This method not only effectively increased the contrasts of two different fossilized skeletal tissues, it was also non-destructive and reversible because part of the fossil was successfully de-stained after a few days in pure ethanol. These preliminary results indicate that iodine-ethanol has the potential to be used widely in vertebrate paleontology to improve CT imaging of fossilized tissues.
资助项目China National Science Foundation[41772013] ; One Hundred Talent Grant[KC17113] ; Strategic Priority Research Program of Chinese Academy of Sciences, XDA[19050100] ; Strategic Priority Research Program of Chinese Academy of Sciences, XDA[XDB26000000] ; Second Tibetan Plateau Scientific Expedition and Research Grant[2019QZKK0705] ; Craton destruction and terrestrial life evolution[41688103]
WOS研究方向Evolutionary Biology ; Developmental Biology ; Zoology
语种英语
WOS记录号WOS:000625418000001
出版者WILEY
资助机构China National Science Foundation ; One Hundred Talent Grant ; Strategic Priority Research Program of Chinese Academy of Sciences, XDA ; Second Tibetan Plateau Scientific Expedition and Research Grant ; Craton destruction and terrestrial life evolution
源URL[http://119.78.100.205/handle/311034/18642]  
专题古脊椎动物与古人类研究所_图书馆1
通讯作者Bailleul, Alida M.; Li, Zhiheng
作者单位1.CAS Ctr Excellence Life & Paleoenvironm, Beijing, Peoples R China
2.Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing 100044, Peoples R China
推荐引用方式
GB/T 7714		 Bailleul, Alida M.,Lu, Jing,Li, Zhiheng. DiceCT applied to fossilized hard tissues: A preliminary case study using a miocene bird[J]. JOURNAL OF EXPERIMENTAL ZOOLOGY PART B-MOLECULAR AND DEVELOPMENTAL EVOLUTION,2021:12.
APA Bailleul, Alida M.,Lu, Jing,&Li, Zhiheng.(2021).DiceCT applied to fossilized hard tissues: A preliminary case study using a miocene bird.JOURNAL OF EXPERIMENTAL ZOOLOGY PART B-MOLECULAR AND DEVELOPMENTAL EVOLUTION,12.
MLA Bailleul, Alida M.,et al."DiceCT applied to fossilized hard tissues: A preliminary case study using a miocene bird".JOURNAL OF EXPERIMENTAL ZOOLOGY PART B-MOLECULAR AND DEVELOPMENTAL EVOLUTION (2021):12.

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来源：古脊椎动物与古人类研究所

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