...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International medical journal: IMJ >Fundus Arteriola and Aging: Ophthalmoscopic Images
【24h】

Fundus Arteriola and Aging: Ophthalmoscopic Images

机译：眼底小动脉和衰老：眼底镜图像

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Objective: To study the aging of eye grounds, fundus arteriola were measured with ophthalmoscopic images.Design: The images of the fundus arteriola were studied referring to the age; statistical distribution (kurtosis) of the image brightness and spatial resolution (the two-dimensional Fourier transform) were measured for the images,Materials and Methods: One hundred and ninety four volunteers, aged 20 to 81 years, participated in this study, after informed consent. Fundus oculi were observed with an ophthalmoscope and taken with a digital camera into uncompressed files of 11 M pixels. An arteriole was selected within a region of interest of 300 pixel square near the optic disc, and the kurtosis and the slope were obtained for the red, green and blue brightness of the image, respectively. The regression analysis and the correlation coefficient were studied between the above results and the age.Results: The mean kurtosis was -0.27 ± 1.15 (standard deviation) for the red brightness, -0.50 ±0.73 for the green brightness, and -0.13 ± 0.48 for the blue brightness, respectively. Significant differences were noted between the kurtosis of the red and that of the green brightness, and between the kurtosis of the green and that of the blue brightness. The mean slope was -0.02 ± 0.03 for the red brightness, -0.12 + 0.07 for the green brightness, and -0.24 + 0.06 for the blue brightness, respectively. Significant differences were noted between them. The regression analysis showed the predictive equations; [Y = -0.0022 x X-0.1293] and -0.02 (correlation coefficient) for the red kurtosis; [Y = -0.0204 X X-1.85] and -0.29 for the green kurtosis; [Y = -0.0123 X X-0.9467] and -0.26 for the blue kurtosis, respectively. The predictive equations were [Y = 0.0002 xX-0.0185] and 0.02 for the red slope; [Y = 0.0029 x X-0.3183] and 0.42 for the green slope; [Y = 0.0012 x X-0.3244] and 0.20 for the blue slope, respectively.Conclusion: The kurtosis increased significantly with aging for the green and blue brightness, and the slope increased significantly with aging for the green and blue brightness of the retinal arteriolar images. Ophthalmoscopic arteriolar images should provide us with certain information correlated to aging.
机译：目的：通过眼底镜图像检查眼底的老化情况。设计：根据年龄对眼底图像进行研究。测量图像的亮度统计分布（峰度）和空间分辨率（二维傅里叶变换）。材料与方法：194名年龄在20至81岁之间的志愿者参加了这项研究同意。用检眼镜观察眼底并用数码相机将其压缩成1100万像素的未压缩文件。在视盘附近300像素平方的感兴趣区域中选择了一条小动脉，并分别获得了图像的红色，绿色和蓝色亮度的峰度和斜率。研究了以上结果与年龄之间的回归分析和相关系数。结果：红色亮度的平均峰度为-0.27±1.15（标准偏差），绿色亮度的平均峰度为-0.50±0.73，-0.13±0.48分别代表蓝色亮度。注意到红色和绿色亮度的峰度之间以及绿色和蓝色亮度的峰度之间存在显着差异。红色亮度的平均斜率是-0.02±0.03，绿色亮度的平均斜率是-0.12 + 0.07，蓝色亮度的平均斜率分别是-0.24 + 0.06。他们之间注意到了显着差异。回归分析显示了预测方程。对于红色峰度，[Y = -0.0022 x X-0.1293]和-0.02（相关系数）;对于绿色峰度，[Y = -0.0204 X X-1.85]和-0.29;蓝色峰度分别为[Y = -0.0123 X X-0.9467]和-0.26。预测方程为[Y = 0.0002 xX-0.0185]，红色斜率为0.02; [Y = 0.0029 x X-0.3183]，绿色坡度为0.42;蓝色斜率分别为[Y = 0.0012 x X-0.3244]和0.20。结论：绿色和蓝色亮度的峰度随着年龄的增长而显着增加，而视网膜小动脉的绿色和蓝色亮度的峰度随着年龄的增长而显着增加。图片。检眼镜的眼动图像应为我们提供与衰老相关的某些信息。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号