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High-quality vascular modeling and modification with implicit extrusion surfaces for blood flow computations

文献类型：期刊论文

作者Hong, Qingqi2; Li, Qingde3; Wang, Beizhan2; Tian, Jie1; Xu, Fei2; Liu, Kunhong2; Cheng, Xuan2
刊名COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE
出版日期2020-11-01
卷号196页码:13
关键词Geometric modeling Vascular visualization Implicit functions Blood flow simulation Extrusion surfaces
ISSN号0169-2607
DOI10.1016/j.cmpb.2020.105598
通讯作者Liu, Kunhong(lkhqz@xmu.edu.cn) ; Cheng, Xuan(21408732@qq.com)
英文摘要Background and Objective: High-quality vascular modeling is crucial for blood flow simulations, i.e., computational fluid dynamics (CFD). As without an accurate geometric representation of the smooth vascular surface, it is impossible to make meaningful blood flow simulations. The purpose of this work is to develop high-quality vascular modeling and modification method for blood flow computations. Methods: We develop a new technique for the accurate geometric modeling and modification of vasculatures using implicit extrusion surfaces (IES). In the proposed method, the skeleton of the vascular structure is subdivided into short curve segments, each of which is then represented implicitly locally as the intersection of two mutually orthogonal implicit surfaces defined by distance functions. A set of contour points is extracted and fitted with an implicit curve for accurately specifying the vessel cross-section profile, which is then extruded locally along the skeleton to fill the gaps between two vascular tube cross sections. We also present a new implicit geometric editing technique to modify the constructed vascular model with pathology for virtual stenting. Results: Experimental results and validations show that accurate vascular models with highly smooth surfaces can be generated by the proposed method. In addition, we conduct some blood flow simulations to indicate the effectiveness of proposed method for hemodynamic simulations. Conclusions: The proposed technique can achieve precise geometric models of vasculatures with any required degree of smoothness for reliable blood flow simulations. (C) 2020 Elsevier B.V. All rights reserved.
WOS关键词VISUALIZATION ; SIMULATION ; RECONSTRUCTION ; SEGMENTATION ; ANGIOGRAPHY ; VALIDATION
资助项目National Natural Science Foundation of China[61502402] ; National Natural Science Foundation of China[61,772,023] ; National Natural Science Foundation of China[61802322] ; Fundamental Research Funds for the Central Universities[20720180073] ; Fundamental Research Funds for the Central Universities[20720190003] ; National Key RD Program of China[2019QY1803]
WOS研究方向Computer Science ; Engineering ; Medical Informatics
语种英语
WOS记录号WOS:000580609200027
出版者ELSEVIER IRELAND LTD
资助机构National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; National Key RD Program of China
源URL[http://ir.ia.ac.cn/handle/173211/41736]  
专题自动化研究所_中国科学院分子影像重点实验室
通讯作者Liu, Kunhong; Cheng, Xuan
作者单位1.Chinese Acad Sci, Inst Automat, Beijing 100190, Peoples R China
2.Xiamen Univ, Sch Informat, Xiamen, Peoples R China
3.Univ Hull, Sch Engn & Comp Sci, Kingston Upon Hull, N Humberside, England
推荐引用方式
GB/T 7714		 Hong, Qingqi,Li, Qingde,Wang, Beizhan,et al. High-quality vascular modeling and modification with implicit extrusion surfaces for blood flow computations[J]. COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE,2020,196:13.
APA Hong, Qingqi.,Li, Qingde.,Wang, Beizhan.,Tian, Jie.,Xu, Fei.,...&Cheng, Xuan.(2020).High-quality vascular modeling and modification with implicit extrusion surfaces for blood flow computations.COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE,196,13.
MLA Hong, Qingqi,et al."High-quality vascular modeling and modification with implicit extrusion surfaces for blood flow computations".COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE 196(2020):13.

入库方式： OAI收割

来源：自动化研究所

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