scholarly journals The incipient infinite cluster does not stochastically dominate the invasion percolation cluster in two dimensions

2011 ◽  
Vol 16 (0) ◽  
pp. 775-780
Author(s):  
Artem Sapozhnikov
1999 ◽  
Vol 121 (5) ◽  
pp. 480-486 ◽  
Author(s):  
O. I. Craciunescu ◽  
S. K. Das ◽  
S. T. Clegg

Dynamic contrast-enhanced magnetic resonance imaging (DE-MRI) of the tumor blood pool is used to study tumor tissue perfusion. The results are then analyzed using percolation models. Percolation cluster geometry is depicted using the wash-in component of MRI contrast signal intensity. Fractal characteristics are determined for each two-dimensional cluster. The invasion percolation model is used to describe the evolution of the tumor perfusion front. Although tumor perfusion can be depicted rigorously only in three dimensions, two-dimensional cases are used to validate the methodology. It is concluded that the blood perfusion in a two-dimensional tumor vessel network has a fractal structure and that the evolution of the perfusion front can be characterized using invasion percolation. For all the cases studied, the front starts to grow from the periphery of the tumor (where the feeding vessel was assumed to lie) and continues to grow toward the center of the tumor, accounting for the well-documented perfused periphery and necrotic core of the tumor tissue.


2008 ◽  
Vol 278 (2) ◽  
pp. 385-431 ◽  
Author(s):  
Martin T. Barlow ◽  
Antal A. Járai ◽  
Takashi Kumagai ◽  
Gordon Slade

1995 ◽  
Vol 31 (3) ◽  
pp. 139-144 ◽  
Author(s):  
G Wagner ◽  
A Birovljev ◽  
P Meakin ◽  
J Feder ◽  
T Jøssang

1991 ◽  
Vol 67 (5) ◽  
pp. 584-587 ◽  
Author(s):  
A. Birovljev ◽  
L. Furuberg ◽  
J. Feder ◽  
T. Jssang ◽  
K. J. Mly ◽  
...  

2009 ◽  
Vol 37 (6) ◽  
pp. 2297-2331 ◽  
Author(s):  
Michael Damron ◽  
Artëm Sapozhnikov ◽  
Bálint Vágvölgyi

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