| 猪主动脉血管冷冻干燥及烘干处理的微CT实验研究 |
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| 引用本文： | 刘萌芳,陶乐仁,殷猛,曹清. 猪主动脉血管冷冻干燥及烘干处理的微CT实验研究[J]. 低温与超导, 2012, 40(6): 54-57 |
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| 作者姓名： | 刘萌芳 陶乐仁 殷猛 曹清 |
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| 作者单位： | 1. 上海理工大学低温技术与食品冷冻研究所,上海,200093
2. 上海交通大学附属上海儿童医学中心,上海,200127 |
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| 摘 要： | 以猪主动脉血管为研究对象,分别进行真空冷冻干燥及烘干两种干燥处理的方法,用称量法测得冻干及烘干血管的失水率分别为64.7%,71.3%。同时对两种干燥血管及复水后的血管进行微CT扫描和分析,得到微观孔隙率、灰度等数值。得出:冻干血管外观乳白色,且结构疏松多孔;烘干血管呈较深的黄色,结构致密透明。从复水状况来看,冻干血管复水容易,外观、孔隙率、灰度值等方面较烘干血管来说,更加接近新鲜血管。
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| 关 键 词： | 猪主动脉 冷冻干燥 烘干 孔隙率 灰度 |
Micro - CT experimental study on the blood vessel of the freeze - dried and heat - dried pig artery |
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| Liu Mengfang , Tao Leren , Yin Meng , Cao Qing. Micro - CT experimental study on the blood vessel of the freeze - dried and heat - dried pig artery[J]. Cryogenics and Superconductivity, 2012, 40(6): 54-57 |
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| Authors: | Liu Mengfang Tao Leren Yin Meng Cao Qing |
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| Affiliation: | 1.Institute of Cryogenic Technology and Food Freezing,University of Shanghai for Science and Technology, Shanghai 200093,China; 2.Shanghai Children’s Medical Center,Shanghai Jiaotong University,Shanghai 200127,China) |
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| Abstract: | In this study,blood vessels of the pig artery are processed by freeze-drying and heat-drying.The dehydration ratios of the two are respectively 64.7% and 71.3% by weighing method.The two dried and rehydrated vessels are scanned with Micro-CT,by calculation of the reconstructed cross-sections by software,the porosity,gray scales values are obtained.The conclusion from comparing these aspects is that freeze-dried vessels are ivory white,loose and porous,while the heat drying ones are relatively deep yellow colored,dense and transparent.Comparing the heat dried vessels,the freeze-dried vessels can be rehydrated more easily,more close to the fresh vessels from appearance,texture,porosity,gray scale and so on. |
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| Keywords: | Pig artery Blood vessel transplantation Freeze-drying Heat-drying Porosity Gray scale |
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