Development of an Automatic Produnction and Growth of Kidney Vascular Structure based on Graph Grammar Methods

Fozooni, Ali | 2015

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 48114 (06)
  4. University: Sharif University of Technology
  5. Department: Chemical and Petroleum Engineering
  6. Advisor(s): Bozorgmehry Boozarjomehry, Ramin
  7. Abstract:
  8. The kidney is one of the most complicated organs in terms of structure and physiology, in part because it is highly vascularized. Previous investigations have focused on specific characteristics like length and diameter. There are a few methods like those which are based on image processing techniques, that have been focused on all features as a unique structure. The clear drawback of these approaches is inability to justify growth and changes. Lindenmayer system (L-system) is parallel rewriting method and a type of graph grammars. L-system can justify growth and all characteristic changes and adopt itself to them. Parametric rewriting rules incorporating within physiological laws of the kidney vasculature are used to generate the structure. An appropriate L-system can generate highly vascularized structures with smaller number of rules. In current study, the structure is generated with one set of rules. Comparing the results against those reported in the literature shows that morphometric characteristics of L-system structure are in good agreement with experimental data. The results can be used for simulation of separation process taking place in the kidney’s vasculture
  9. Keywords:
  10. Kidney ; Computational Geometry ; L-System Theory ; Branching Proccess ; Vascular Kidney ; Growth Rules

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