Objective: To apply a non-invasive and feasible method for the quantification of local wall shear stress (WSS) in vivo using magnetic resonance imaging. Methods: The right common carotid artery of a young healthy male volunteer was examined using cine phase-contrast MR sequence. The cross-sectional area, average flow velocity, maximum velocity and flow rate were obtained. Three dimensional paraboloid model was applied to measure WSS value at common carotid artery. Results: The mean/peak WSS was (0.75 ± 0.41) N/m2 for the common carotid artery; The mean (range) velocity was (23.4 ± 12.0) cm/s; The mean (range) luminal vessel area was (32.2 ± 2.9) mm2; The blood flow rate was (7.8 ± 4.6) ml/s; Conclusion: WSS's magnitude, distribution and changes can be determined by MR imaging combining with the three-dimensional paraboloid method.
语种:
中文
第一作者:
第一作者机构:[1]Imaging Center of Neuroscience, Beijing Tiantan Hospital, Capital Medical University, Beijing 100050, China
推荐引用方式(GB/T 7714):
Sui B.-B,Gao P.-Y,Lin Y.In vivo MR evaluation of the vessel wall shear stress in the common carotid artery[J].2008,42(8):