R
Ryo Torii
Researcher at University College London
Publications - 164
Citations - 4590
Ryo Torii is an academic researcher from University College London. The author has contributed to research in topics: Medicine & Shear stress. The author has an hindex of 29, co-authored 138 publications receiving 3869 citations. Previous affiliations of Ryo Torii include Nagoya Institute of Technology & Imperial College London.
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Journal ArticleDOI
Magnitude and Role of Wall Shear Stress on Cerebral Aneurysm Computational Fluid Dynamic Study of 20 Middle Cerebral Artery Aneurysms
Masaaki Shojima,Marie Oshima,Kiyoshi Takagi,Ryo Torii,Motoharu Hayakawa,Kazuhiro Katada,Akio Morita,Takaaki Kirino +7 more
TL;DR: The results suggest that in contrast to the pathogenic effect of a high WSS in the initiating phase, a low WSS may facilitate the growing phase and may trigger the rupture of a cerebral aneurysm by causing degenerative changes in the aneurYSm wall.
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Finite element simulation of blood flow in the cerebral artery
TL;DR: In this paper, the authors developed a numerical simulation system for the clinical study of a cerebral aneurysm, which consists of three processes: pre-processing, numerical simulation and post-processing.
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Incomplete Stent Apposition Causes High Shear Flow Disturbances and Delay in Neointimal Coverage as a Function of Strut to Wall Detachment Distance Implications for the Management of Incomplete Stent Apposition
Nicolas Foin,Juan Luis Gutiérrez-Chico,Shimpei Nakatani,Ryo Torii,Christos V. Bourantas,Sayan Sen,Sukhjinder Nijjer,Ricardo Petraco,Chrysa A. Kousera,Matteo Ghione,Yoshinobu Onuma,Hector M. Garcia-Garcia,Darrel P. Francis,Philip Wong,Carlo Di Mario,Justin E. Davies,Patrick W. Serruys +16 more
TL;DR: Flow disturbances and risk of delayed strut coverage both increase with ISA detachment distance, and insights from this study are important for understanding malapposition as a quantitative, rather than binary phenomenon and to define the threshold ofISA detachment that might benefit from optimization during stent implantation.
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Fluid–structure Interaction Modeling of Aneurysmal Conditions with High and Normal Blood Pressures
TL;DR: The results imply that hypertension affects the growth of an aneurysm and the damage in arterial tissues, as well as the possible computations with hemodynamic conditions representing those risk factors in cardiovascular disease.
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Computer modeling of cardiovascular fluid-structure interactions with the deforming-spatial-domain/stabilized space-time formulation
TL;DR: It is deduce that the compliance of the arterial walls needs to be taken into account in cardiovascular hemodynamic simulations, and the computer modeling tool developed can be effective in investigation of cardiovascular diseases.