NDLI: Placental villous tree models for evaluating the mechanical environment in the human placenta

Content Provider	IEEE Xplore Digital Library
Author	Kato, Y. Oyen, M.L. Burton, G.J.
Copyright Year	2014
Description	Author affiliation: Dept. of Physiol., Dev. & Neurosci., Univ. of Cambridge, Cambridge, UK (Burton, G.J.) \|\| Dept. of Eng., Univ. of Cambridge, Cambridge, UK (Kato, Y.; Oyen, M.L.)
Abstract	The human placenta has the fetal and maternal blood flows, which are in the villous tree and intervillous space, respectively. The oxygen environment influences the branching of the villous tree. The contraction of the villous tree can directly modulate the intervillous space. The change in the shape and the contraction are necessary to investigate the maternal and fetal circulations from the viewpoint of biomechanics. In this study, the method to construct the villous tree models for evaluating the mechanical environment in the placenta was developed. The two-dimensional diffusion-limited aggregation model was used to make the axis of the villous tree model. The centripetal and centrifugal orders in each branch showed that the axis was unequally dichotomous as well as asymmetric. By changing the range of the centripetal order, 6 types of the axes were made. The size of the axis was modulated to keep the area of its bounding rectangle constant in the models. By curving the axis three-dimensionally, and then dilating it, the villous tree model including blood vessels was made. The component ratio was almost constant in the models. The surface area and volume in the smallest model were less than 30% of those in the largest one.
Starting Page	107
Ending Page	111
File Size	1425402
Page Count	5
File Format	PDF
ISBN	9781479952205
DOI	10.1109/IST.2014.6958455
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-10-14
Publisher Place	Greece
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Biomedical imaging Solid modeling Computational modeling Blood flow Shape Arteries Medical Image Placenta Villous tree Contraction Computational model
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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