Hemodynamic impacts of various types of stenosis in the left coronary artery bifurcation: A patient-specific analysis
This study investigates the hemodynamic changes to various types of coronary stenosis in the left coronary artery bifurcation, based on a patient-specific analysis. Twenty two patients with left coronary artery disease were included in this study. All stenoses involving the left coronary artery bifu...
| Main Authors: | , , |
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| Format: | Journal Article |
| Published: |
Elsevier Ltd
2013
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| Online Access: | http://hdl.handle.net/20.500.11937/29657 |
| _version_ | 1848752863701893120 |
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| author | Chaichana, Thanapong Sun, Zhonghua Jewkes, James |
| author_facet | Chaichana, Thanapong Sun, Zhonghua Jewkes, James |
| author_sort | Chaichana, Thanapong |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | This study investigates the hemodynamic changes to various types of coronary stenosis in the left coronary artery bifurcation, based on a patient-specific analysis. Twenty two patients with left coronary artery disease were included in this study. All stenoses involving the left coronary artery bifurcation were classified into four types, according to their locations: A) left circumflex (LCx) and left anterior descending (LAD), B) LCx only, C) left main stem only, and D) LAD only. Computational fluid dynamics (CFD) was performed to analyze the flow and wall shear stress (WSS) changes in all reconstructed left coronary geometries. Our results showed that the flow velocity and WSS were significantly increased at stenotic locations. High WSS was found at >70% lumen stenosis, which ranged from 2.5 Pa to 3.5 Pa. This study demonstrates that in patients with more than 50% stenosis in the left coronary artery bifurcation, WSS plays an important role in providing information about the extent of coronary atherosclerosis in the left coronary artery branch. |
| first_indexed | 2025-11-14T08:15:23Z |
| format | Journal Article |
| id | curtin-20.500.11937-29657 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:15:23Z |
| publishDate | 2013 |
| publisher | Elsevier Ltd |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-296572019-02-19T04:28:17Z Hemodynamic impacts of various types of stenosis in the left coronary artery bifurcation: A patient-specific analysis Chaichana, Thanapong Sun, Zhonghua Jewkes, James This study investigates the hemodynamic changes to various types of coronary stenosis in the left coronary artery bifurcation, based on a patient-specific analysis. Twenty two patients with left coronary artery disease were included in this study. All stenoses involving the left coronary artery bifurcation were classified into four types, according to their locations: A) left circumflex (LCx) and left anterior descending (LAD), B) LCx only, C) left main stem only, and D) LAD only. Computational fluid dynamics (CFD) was performed to analyze the flow and wall shear stress (WSS) changes in all reconstructed left coronary geometries. Our results showed that the flow velocity and WSS were significantly increased at stenotic locations. High WSS was found at >70% lumen stenosis, which ranged from 2.5 Pa to 3.5 Pa. This study demonstrates that in patients with more than 50% stenosis in the left coronary artery bifurcation, WSS plays an important role in providing information about the extent of coronary atherosclerosis in the left coronary artery branch. 2013 Journal Article http://hdl.handle.net/20.500.11937/29657 10.1016/j.ejmp.2013.02.001 Elsevier Ltd fulltext |
| spellingShingle | Chaichana, Thanapong Sun, Zhonghua Jewkes, James Hemodynamic impacts of various types of stenosis in the left coronary artery bifurcation: A patient-specific analysis |
| title | Hemodynamic impacts of various types of stenosis in the left coronary artery bifurcation: A patient-specific analysis |
| title_full | Hemodynamic impacts of various types of stenosis in the left coronary artery bifurcation: A patient-specific analysis |
| title_fullStr | Hemodynamic impacts of various types of stenosis in the left coronary artery bifurcation: A patient-specific analysis |
| title_full_unstemmed | Hemodynamic impacts of various types of stenosis in the left coronary artery bifurcation: A patient-specific analysis |
| title_short | Hemodynamic impacts of various types of stenosis in the left coronary artery bifurcation: A patient-specific analysis |
| title_sort | hemodynamic impacts of various types of stenosis in the left coronary artery bifurcation: a patient-specific analysis |
| url | http://hdl.handle.net/20.500.11937/29657 |