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Scaling Properties of the Placenta's Arterial Tree

✍ Scribed by Dan L. Bergman; Ulla Ullberg

Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
256 KB
Volume
193
Category
Article
ISSN
0022-5193

No coin nor oath required. For personal study only.

✦ Synopsis

The purpose of the present work is to establish a basic knowledge about the scaling properties of the placenta's arterial tree. For this end we have analysed X-ray angiograms of 22 normal arterial trees by box counting. All the investigated arterial trees scale closely according to a power-law over a one decade wide range of scales. Perfectly self-similar fractals, of the same resolution as our representation of the arterial tree, do not follow a power-law more closely. The results support the hypothesis that a mechanism or rule--as regular as those which dictate the structure of perfectly self-similar fractals--also determines fundamental aspects of the arterial tree's morphology.

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