High Resolution Extraction of Local Human Cardiac Fibre Orientations

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• 作者：Fran?ois Varray (19) (20)
  Lihui Wang (19) (20)
  Laurent Fanton (19) (20)
  Yue-Min Zhu (19) (20)
  Isabelle E. Magnin (19) (20)
  
• 关键词：ESRF ; DTMRI ; myocytes arrangement ; cardiac fibre
• 刊名：Lecture Notes in Computer Science
• 出版年：2013
• 出版时间：2013
• 年：2013
• 卷：7945
• 期：1
• 页码：158-165
• 全文大小：2217KB
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• 作者单位：Fran?ois Varray (19) (20)
  Lihui Wang (19) (20)
  Laurent Fanton (19) (20)
  Yue-Min Zhu (19) (20)
  Isabelle E. Magnin (19) (20)
  
  19. CNRS UMR 5220, INSERM U1044, INSA-Lyon, Creatis, Université de Lyon, France
  20. Université Lyon 1, 7 av Jean Capelle, 69621, Villeurbanne, France
  
• ISSN：1611-3349

文摘

Diffusion tensor magnetic resonance imaging (DTMRI) is usually used to detect the displacement distribution of water molecules in biological structure. However, in post-mortem heart fibre imaging, the low spatial resolution does not allow investigating the cardiac fibre structure at microscopic scale. In this paper, the myocyte arrangement of a human heart is investigated at a high resolution of 3.5?μm using the European Synchrotron Radiation Facility (ESRF). The orientation of the myocytes is then computed and extracted at various depths of the heart sample with a multi-scale approach. The helix arrangement of the fibre is obtained at a higher resolution compared to DTMRI. The results show that the measured elevation angles are in good agreement with knowledge of cardiac muscle anatomy. Such high-resolution cardiac fibre orientation information can be used to validate DTMRI measurements and analyze the evolution of cardiac fibre orientations from microscopic level to macroscopic one.