兰州大学机构库 >学院待认领
能谱CT成像对成人腰椎骨密度测定研究
Alternative Titleresearch of gemstone spectrum CT in adult lumbar spine BMD measurement
翟永川
Thesis Advisor周俊林
2015-05-22
Degree Grantor兰州大学
Place of Conferral兰州
Degree Name硕士
Keyword骨密度 能谱成像 骨质疏松 X线计算机
Abstract目的:探讨男女21-70岁不同年龄组腰椎能谱成像表现,评估能谱CT用于骨密度测量的可行性。 方法:①选取21-70岁间男性97例,女性109例进行腰椎能谱CT扫描,按10岁一组分5组;记录L2椎体能谱曲线不同KeV下11个CT值、70KeV下CT值、钙-水值、水-钙值。②筛选128例男女运用DEXA法测定的骨密度值。③男、女同性别不同年龄组之间的能谱数据对比采用方差分析,相同年龄组之间进行对比采用T检验分析;对年龄与相关能谱值,钙-水值与DEXA法测定的骨密度值之间相关性采用Pearson分析。 结果:①男女的能谱曲线均表现为速降型,21-30岁与41-50岁年龄组能谱曲线相似;31-40岁年龄组能谱曲线最高,61-70岁年龄组能谱曲线最低;男女同年龄组比较21-50岁三组的能谱曲线相似。②男女≤40岁年龄者的相关能谱参数值与年龄呈正相关;>40岁年龄者与年龄呈负相关;男性21-50岁三组,女性21-30岁与41-50岁年龄组相关能谱值比较无明显差异;男、女同年龄组中比较21-50岁三组比较差异不明显,而51-60岁及61-70岁年龄组钙-水值和CT值比较差异明显,而水-钙值差异不明显。③能谱CT钙-水值与DEXA法测量骨密度值具有显著相关性。 结论:成人腰椎能谱CT成像有一定特征;能谱CT可作为测量骨质密度的新方法。 关键词:骨密度,能谱成像,骨质疏松,X线计算机
Other AbstractObjective:to Explore the different age groups of men and women (21-70 years old) spectrum imaging of the lumbar spine, and to evaluate the feasibility of spectral CT in measurement of bone mineral density. Methods:①totally male 97 cases, female 109 cases did lumbar spine GSI examination with spectral CT. The males and females were divided into five groups according to age. Recorded L2 vertebral spectrum curve 11 CT values under different KeV, 70KeV -CT value, the calcium (water) concentration, water (calcium) concentration.②Selected 128 cases were measured by DEXA bone density method, measured and recorded the bone mineral density.③Analysis of variance was used to Analyze differences between males and females with different age groups; T-test was used to Analyze differences between males and females with same age groups. Pearson correlation analysis was done in the following two groups: The first group include age, CT-values, calcium (water) and water (calcium) concentration; The sceond group include calcium (water) concentration and BMD. Result:①The males and females spectrum curves of different age groups were performance as downhill type. The 21-30 years old and 41-50 years age group spectrum curve was similar. Males and females in 31-40 years old age group, the average spectra curve was highest, in the 61-70 year-old age group, the average spectrum curve was lowest. Between males and females of the same age group: 21-50 years old age groups spectrum curve were Similar.②energy spectrum concentration showed positive relationship to age in people≤40year, showed Negative relationship to age in people>40year. males of different age groups between 21-50 years old age group and females of different age groups between 21-30 and 41-50 years old, the energy spectrum concentration showed no significant difference; Male and female comparison between 21-50 in the same age group energy spectrum concentration showed no significant difference,and between the age group of 51-60 and 61-70 were significantly different.③Calcium (water) concentration and BMD showed positive relationship. Conclusion:The Spectral imaging feature of The lumbar spine have certain characteristics, GSI can be use to Measure the bone mineral density. Key words: Bone mineral density,GSI, Osteoporosis, X-ray computed
URL查看原文
Language中文
Document Type学位论文
Identifierhttps://ir.lzu.edu.cn/handle/262010/222921
Collection学院待认领
Affiliation临床医学院
Recommended Citation
GB/T 7714
翟永川. 能谱CT成像对成人腰椎骨密度测定研究[D]. 兰州. 兰州大学,2015.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Altmetrics Score
Google Scholar
Similar articles in Google Scholar
[翟永川]'s Articles
Baidu academic
Similar articles in Baidu academic
[翟永川]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[翟永川]'s Articles
Terms of Use
No data!
Social Bookmark/Share
No comment.
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.