Comput. Biol. Med. - Mesh quality oriented 3D geometric vascular modeling based on parallel transport frame.

Tópicos

{ method(984) reconstruct(947) comput(926) }
{ model(2656) set(1616) predict(1553) }
{ motion(1329) object(1292) video(1091) }
{ implement(1333) system(1263) develop(1122) }
{ clinic(1479) use(1117) guidelin(835) }
{ problem(2511) optim(1539) algorithm(950) }
{ howev(809) still(633) remain(590) }
{ imag(1947) propos(1133) code(1026) }
{ data(1737) use(1416) pattern(1282) }
{ system(1976) rule(880) can(841) }
{ method(1219) similar(1157) match(930) }
{ imag(2830) propos(1344) filter(1198) }
{ imag(2675) segment(2577) method(1081) }
{ error(1145) method(1030) estim(1020) }
{ algorithm(1844) comput(1787) effici(935) }
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{ research(1085) discuss(1038) issu(1018) }
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{ research(1218) medic(880) student(794) }
{ data(2317) use(1299) case(1017) }
{ age(1611) year(1155) adult(843) }
{ medic(1828) order(1363) alert(1069) }
{ signal(2180) analysi(812) frequenc(800) }
{ cost(1906) reduc(1198) effect(832) }
{ group(2977) signific(1463) compar(1072) }
{ sampl(1606) size(1419) use(1276) }
{ gene(2352) biolog(1181) express(1162) }
{ first(2504) two(1366) second(1323) }
{ intervent(3218) particip(2042) group(1664) }
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{ detect(2391) sensit(1101) algorithm(908) }

Resumo

While a number of methods have been proposed to reconstruct geometrically and topologically accurate 3D vascular models from medical images, little attention has been paid to constantly maintain high mesh quality of these models during the reconstruction procedure, which is essential for many subsequent applications such as simulation-based surgical training and planning. We propose a set of methods to bridge this gap based on parallel transport frame. An improved bifurcation modeling method and two novel trifurcation modeling methods are developed based on 3D B?zier curve segments in order to ensure the continuous surface transition at furcations. In addition, a frame blending scheme is implemented to solve the twisting problem caused by frame mismatch of two successive furcations. A curvature based adaptive sampling scheme combined with a mesh quality guided frame tilting algorithm is developed to construct an evenly distributed, non-concave and self-intersection free surface mesh for vessels with distinct radius and high curvature. Extensive experiments demonstrate that our methodology can generate vascular models with better mesh quality than previous methods in terms of surface mesh quality criteria.

Resumo Limpo

number method propos reconstruct geometr topolog accur d vascular model medic imag littl attent paid constant maintain high mesh qualiti model reconstruct procedur essenti mani subsequ applic simulationbas surgic train plan propos set method bridg gap base parallel transport frame improv bifurc model method two novel trifurc model method develop base d bzier curv segment order ensur continu surfac transit furcat addit frame blend scheme implement solv twist problem caus frame mismatch two success furcat curvatur base adapt sampl scheme combin mesh qualiti guid frame tilt algorithm develop construct even distribut nonconcav selfintersect free surfac mesh vessel distinct radius high curvatur extens experi demonstr methodolog can generat vascular model better mesh qualiti previous method term surfac mesh qualiti criteria

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