Journal article
Two‐dimensional pulsatile hemodynamic analysis in the magnetic resonance angiography interpretation of a stenosed carotid arterial bifurcation
Medical physics (Lancaster), v 20(4), pp 1059-1070
Jul 1993
PMID: 8413013
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Abstract
A two‐dimensional pulsatile hemodynamic analysis based on the finite‐element technique was performed on a minimally stenosed carotid artery to identify the possible explanation for the differences in the x‐ray and magnetic resonance carotid angiograms of a patient. The magnetic resonance angiogram was obtained by applying the maximum intensity projection algorithm to axial slices, acquired using the time‐of‐flight principle. The differences in the x‐ray and magnetic resonance depictions were interpreted based on velocity profile, wall shear stress, and streamline data provided by the hemodynamic analysis. The specific contribution of the stenosis was further isolated from that of the bifurcation by comparing the flow patterns within the stenotic artery with those of its normal counterpart. The Doppler spectral velocity wave form of the patient constituted the basis for the pulsatile flow velocity specification. The analysis took into consideration the non‐Newtonian viscosity of blood. The numerical procedure was validated through different convergence criteria and through shear stress comparisons. The importance of hemodynamic analyses in relation to magnetic resonance angiography was further discussed along with possible shortcomings of the technique.
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Details
- Title
- Two‐dimensional pulsatile hemodynamic analysis in the magnetic resonance angiography interpretation of a stenosed carotid arterial bifurcation
- Creators
- Talin A Tasciyan - Thomas Jefferson University Hospital, Department of Radiology, 10th and Sansom Streets, Philadelphia, Pennsylvania 19107Rupak Banerjee - Drexel University, Department of Mechanical Engineering, 3200 Chestnut Street, Philadelphia, Pennsylvania 19104Young I Cho - Drexel University, Department of Mechanical Engineering, 3200 Chestnut Street, Philadelphia, Pennsylvania 19104Richard Kim - Thomas Jefferson University Hospital, Department of Radiology, 10th and Sansom Streets, Philadelphia, Pennsylvania 19107
- Publication Details
- Medical physics (Lancaster), v 20(4), pp 1059-1070
- Number of pages
- 12
- Resource Type
- Journal article
- Academic Unit
- Mechanical Engineering and Mechanics
- Web of Science ID
- WOS:A1993LU09300012
- Scopus ID
- 2-s2.0-0027290692
- Other Identifier
- 991014878407004721
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- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Radiology, Nuclear Medicine & Medical Imaging