Title :
Evaluation of cross-beam vector Doppler ultrasound systems for accurate 3-D velocity measurements
Author :
Hussain, Babar ; Wong, Emily Y. ; Yiu, Billy Y. S. ; Yu, Alfred C. H. ; Poepping, Tamie L.
Author_Institution :
Dept. of Phys. & Astron., Univ. of Western Ontario, London, ON, Canada
Abstract :
Vector Doppler ultrasound (VDUS) systems offer the potential for improved accuracy in mapping of complex flow parameters, such as recirculation, turbulence, and shear stress which are probable risk factors leading to vascular disease and stroke. Cross-beam VDUS systems were evaluated for velocity accuracy to optimize the number of receivers for the inter-beam angle, wall filter, system orientation, and complexity of flow seen in a stenosed carotid artery. Preliminary results for velocity estimation show promise for validation of numerical results.
Keywords :
Doppler effect; biomedical ultrasonics; blood vessels; diseases; haemodynamics; velocity measurement; 3D velocity measurements; cross-beam VDUS systems; cross-beam vector Doppler ultrasound systems; flow complexity; flow parameters; interbeam angle; stenosed carotid artery; stroke; system orientation; vascular disease; velocity estimation; wall filter; Carotid arteries; Computational fluid dynamics; Doppler effect; Estimation; Receivers; Ultrasonic imaging; Vectors; blood velocity; carotid artery; hemodynamics; vector Doppler ultrasound;
Conference_Titel :
Ultrasonics Symposium (IUS), 2012 IEEE International
Conference_Location :
Dresden
Print_ISBN :
978-1-4673-4561-3
DOI :
10.1109/ULTSYM.2012.0080
