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Predictive Study of Velocimetry in the Coronary Artery after Iodinated Contrast Agent Injection

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Document pages: 12 pages

Abstract: This studyaims to determine the retention time of iodinated contrast agents (ICA) in the coronaryartery. The mechanical aspect of ICA displacement was studied in order to betterunderstand the effect of these products on the inner wall of the artery of patientswith coronary artery stenosis, undergoing repeated imaging examinations with iodinatedcontrast agents. ICA flow, ICA and blood flow in the artery were modelled. The fluidwas regarded to be viscous, incompressible and Newtonian. Blood flow was presumedto be unidirectional, laminar and unstationary. Iodine flow velocity and retentiontime were calculated using the Runge-Kutta 4th order method programmed in C++ andMatLab R2013a language. The results showed that for coronary artery CT-scans, ICAretention time is 1 minute 40 seconds and for coronary arteriography it is between2.41 and 3.61 seconds. The values calculated were compared to theoretical valuesand to clinical observations. The results enabled us to validate our model.

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