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Intraventricular vortex flow changes in the infarcted left ventricle: numerical results in an idealised 3D shape

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  • Federico Domenichini
  • Gianni Pedrizzetti

Abstract

The cardiac diagnostic process is primarily based on the evaluation of myocardial mechanics whereas little is known about blood dynamics that is rarely considered to this purpose. The intraventricular blood flow is analysed here for akinetic and dyskinetic myocardial motion corresponding to the presence of an ischaemic pathology. This study is performed through a 3D numerical model of the left ventricular flow. Results show that the presence of an anterior–inferior wall infarction leads to the shortening and weakening of the diastolic mitral jet. A region of stagnating flow is found near the apex and close to the ischaemic wall. These results are in agreement with previous clinical findings based on echographic imaging. The described phenomena are also noticed for moderate degrees of the ischaemic pathology and suggest a potential value of the study of the intraventricular flow to develop early diagnostic indicators.

Suggested Citation

  • Federico Domenichini & Gianni Pedrizzetti, 2011. "Intraventricular vortex flow changes in the infarcted left ventricle: numerical results in an idealised 3D shape," Computer Methods in Biomechanics and Biomedical Engineering, Taylor & Francis Journals, vol. 14(01), pages 95-101.
    • Handle: RePEc:taf:gcmbxx:v:14:y:2011:i:01:p:95-101
    DOI: 10.1080/10255842.2010.485987
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    1. Philip J. Kilner & Guang-Zhong Yang & A. John Wilkes & Raad H. Mohiaddin & David N. Firmin & Magdi H. Yacoub, 2000. "Asymmetric redirection of flow through the heart," Nature, Nature, vol. 404(6779), pages 759-761, April.
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    Cited by:

    1. Bee Ting Chan & Einly Lim & Chi Wei Ong & Noor Azuan Abu Osman, 2015. "Effect of spatial inlet velocity profiles on the vortex formation pattern in a dilated left ventricle," Computer Methods in Biomechanics and Biomedical Engineering, Taylor & Francis Journals, vol. 18(1), pages 90-96, January.

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