Publication in refereed journal
香港中文大学研究人员 ( 现职)
| Professor Manoj Kumar KARMAKAR (麻醉及深切治疗学系) |
| 何名熙教授 (麻醉及深切治疗学系) |
| 李佳伟博士 (麻醉及深切治疗学系) |
全文
| 数位物件识别号 (DOI) http://dx.doi.org/10.7863/ultra.34.5.797 |
引用次数
Web of Sciencehttp://aims.cuhk.edu.hk/converis/portal/Publication/2WOS source URL
Scopushttp://aims.cuhk.edu.hk/converis/portal/Publication/2Scopus source URL
其它资讯
摘要Objectives - Currently, there are no quantitative data on the echo texture of a peripheral nerve. This study was designed to objectively compare the differences in the echo texture of the median nerve in the young and the elderly. Methods - The median nerves of 10 healthy young volunteers (<30 years old; group Y) and 10 elderly patients undergoing lower limb surgery (>60 years old; group E) were scanned at the mid forearm by a standardized protocol. The echo texture of a normalized median nerve image was analyzed for the echo intensity and spatial distribution of pixels. Noise in the image was reduced by using a median filter, and thresholding was performed thereafter. In the resultant binary image, the cross-sectional area, echo intensity, white area index, and black area index of the median nerve were determined by computerized texture analysis. Results - The mean cross-sectional area of the median nerve in group E was significantly smaller than that in group Y (P = .00http://aims.cuhk.edu.hk/converis/portal/Publication/2). The mean echo intensity and white area index in group E were significantly higher than those in group Y (P = .00http://aims.cuhk.edu.hk/converis/portal/Publication/2 and .01http://aims.cuhk.edu.hk/converis/portal/Publication/2). The mean black area index in group E was correspondingly significantly lower than that in group Y (P = .01http://aims.cuhk.edu.hk/converis/portal/Publication/2). In group Y, the mean white area index was significantly lower than the black area index (P = .006) but not in group E (P = .http://aims.cuhk.edu.hk/converis/portal/Publication/213). Conclusions - There are significant differences in the echo texture of the median nerve between the young and the elderly. These differences may be due to age-related changes in the relative proportion of neural fascicles and connective tissue within the nerve.
着者Li X., Li J.W., Ho A.M.-H., Karmakar M.K.
期刊名称Journal of Ultrasound in Medicine
出版年份http://aims.cuhk.edu.hk/converis/portal/Publication/2015
月份1
日期1
卷号34
期次5
出版社American Institute for Ultrasound in Medicine
出版地United States
页次797 - 804
国际标準期刊号0http://aims.cuhk.edu.hk/converis/portal/Publication/278-4http://aims.cuhk.edu.hk/converis/portal/Publication/297
电子国际标準期刊号1550-9613
语言英式英语
关键词Echo texture, Median nerve, Musculoskeletal ultrasound, Sonography, Texture analysis
