Segmentation, reconstruction, and analysis of blood thrombus formation in 3D 2-photonmicroscopy images

Authors:
Jian Mu;Xiaomin Liu;Malgorzata M. Kamocka;Zhiliang Xu;Mark S. Alber;Elliot D. Rosen;Danny Z. Chen
Affiliations:
Department of Computer Science and Engineering, University of Notre Dame, Notre Dame, IN;Department of Computer Science and Engineering, University of Notre Dame, Notre Dame, IN;Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, IN;Department of Mathematics, University of Notre Dame, Notre Dame, IN;Department of Mathematics, University of Notre Dame, Notre Dame, IN;Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, IN;Department of Computer Science and Engineering, University of Notre Dame, Notre Dame, IN
Venue:
EURASIP Journal on Advances in Signal Processing - Image processing and analysis in biomechanics
Year:
2010

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Abstract

We study the problem of segmenting, reconstructing, and analyzing the structure growth of thrombi (clots) in blood vessels in vivo based on 2-photon microscopic image data. First, we develop an algorithm for segmenting clots in 3D microscopic images based on density-based clustering and methods for dealing with imaging artifacts. Next, we apply the union-of-balls (or alpha-shape) algorithm to reconstruct the boundary of clots in 3D. Finally, we perform experimental studies and analysis on the reconstructed clots and obtain quantitative data of thrombus growth and structures. We conduct experiments on laser-induced injuries in vessels of two types of mice (the wild type and the type with low levels of coagulation factor VII) and analyze and compare the developing clot structures based on their reconstructed clots from image data. The results we obtain are of biomedical significance. Our quantitative analysis of the clot composition leads to better understanding of the thrombus development, and is valuable to the modeling and verification of computational simulation of thrombogenesis.