全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...
-  2015 

一种基于ST图轨迹方向的微循环流速测量算法

DOI: doi:10.7507/1001-5515.20150080

Keywords: 微循环, 流速测量, 时空图, 轨迹方向, 随机Hough变换

Full-Text   Cite this paper   Add to My Lib

Abstract:

微循环的血流速度是反映微循环状态的重要指标, 在许多生理和病理状态下有着重要的参考价值。基于时空(ST)图的流速测量方法思想是将细胞的运动轨迹映射到二维时空图中, 将基于视频的流速测量转换为对ST图中轨迹的方向测量。本文提出了一种基于随机Hough变换与投影变换的轨迹方向测量算法, 能够在受噪声影响较大的ST图中准确检测轨迹方向并计算微循环流速。实验结果表明本文算法测量的微循环流速与人工手动测量的结果吻合度超过90%

References

[1]  1. OSPINA-TASCON G, NEVES A P, OCCHIPINTI G A, et al. Effects of fluids on microvascular perfusion in patients with severe sepsis[J]. Intensive Care Med, 2010, 36(6):949-955.
[2]  2. BEZEMER R, BARTELS S A, BAKKER J, et al. Clinical review:Clinical imaging of the sublingual microcirculation in the critically ill--where do we stand?[J]. Critical Care, 2012, 16(3):224.
[3]  3. LEE J Y, JI H S, LEE S J. Micro-PIV measurements of blood flow in extraembryonic blood vessels of chicken embryos[J]. Physiol Meas, 2007, 28(10):1149-1162.
[4]  4. WU C C, ZHANG G, HUANG T C, et al. Red blood cell velocity measurements of complete capillary in finger nail-fold using optical flow estimation[J]. Microvasc Res, 2009, 78(3):319-324.
[5]  5. WATANABE M, MATSUBARA M, SANADA T, et al. High speed digital video capillaroscopy:nailfold capillary shape analysis and red blood cell velocity measurement[J]. J Biomech Sci Eng, 2007, 2(2):81-92.
[6]  6. BEZEMER R, DOBBE J G, BARTELS S A, et al. Rapid automatic assessment of microvascular density in sidestream dark field images[J]. Med Biol Eng Comput, 2011, 49(11):1269-1278.
[7]  7. YOU S, MASSEY M, SHAPIRO N, et al. A novel line detection method in space-time images for microvascular blood flow analysis in sublingual microcirculatory videos[C]//2013 IEEE 10th International Symposium on Biomedical Imaging:From Nano to Macro. San Francisco, CA:2013:7-11.
[8]  8. DING Yihong, PING Xijian, HU Min, et al. Range image segmentation based on randomized Hough transform[J]. Pattern Recognit Lett, 2005, 26(13):2033-2041.
[9]  9. MANI V R S, ARIVAZHAGAN S. Survey of medical image registration[J]. J Biomed Eng, 2013, 1(2):8-25.
[10]  10. 皮净锐, 房斌, 王翊, 等.基于Hessian矩阵和GMM-EM算法的肝脏三维血管树提取[J].生物医学工程学杂志, 2013, 30(3):486-492.
[11]  11. 陈远, 赵志敏, 刘磊.基于ST图的微循环血细胞自动跟踪与测量技术[J].东南大学学报:自然科学版, 2011, 41(1):72-76.
[12]  12. 赵建军, 熊馨, 张磊, 等.基于CLAHE和top-hat变换的手背静脉图像增强算法[J].激光与红外, 2009, 39(2):220-222.
[13]  13. DOBBE J G G, STREEKSTRA G J, ATASEVER B, et al. Measurement of functional microcirculatory geometry and velocity distributions using automated image analysis[J]. Med Biol Eng Comput, 2008, 46(7):659-670.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133