Investigation of on skin surface response due to acoustic radiation from stenosed blood vessels

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2015-11-02
Salman, Huseyin E.
Yazıcıoğlu, Yiğit
Arterial stenosis is a form of cardiovascular disease which leads to highest rate of fatalities worldwide. When stenosis is present in coronary arteries, it leads to heart attack and often sudden death. Arterial disease is usually not confined to critical organs such as the heart and the brain but observed throughout the peripheral cardiovascular system. When an artery has a diameter reduction, acoustic radiation originating from this constriction propagates through soft tissues and reaches to skin surface. Therefore, these signals detected on skin surface may provide valuable information for diagnostic purposes. In this study, effects of acoustic radiation on skin surface due to a stenosis are investigated. Human upper arm is modeled using commercial finite element analysis software ADINA. Realistic geometries and soft tissue mechanical properties are employed. Acoustic pressure distribution due to constriction is modeled using related studies in literature and applied on inner surface of blood vessel. Harmonic analysis is performed for upper arm and pressure distribution on skin surface is obtained. It is observed that increasing level of stenosis leads to an increase in pressure amplitudes on skin surface where the region which is closest to the constricted artery has the highest pressure amplitudes.

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Citation Formats
H. E. Salman and Y. Yazıcıoğlu, “Investigation of on skin surface response due to acoustic radiation from stenosed blood vessels,” 2015, vol. 25, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/39386.