a lumped parameter method to calculate the effect of internal carotid artery occlusion on anterior cerebral artery pressure waveform
نویسندگان
چکیده
1024x768 normal 0 false false false en-us x-none ar-sa background and objective: numerical modeling of biological structures would be very helpful tool to analyze hundreds of human body phenomena and also diseases diagnosis. one physiologic phenomenon is blood circulatory system and heart hemodynamic performance that can be simulated by utilizing lumped method. in this study, we can predict hemodynamic behavior of one artery of circulatory system (anterior cerebral artery) when disease such as internal carotid artery occlusion is occurred. method: pressure-flow simulation is one the leading common approaches for modeling of circulatory system behavior and forecasts of hemodynamic in numerous physiological conditions. in this paper, by using lumped model (electrical analogy), cv system is simulated in matlab software (simulink environment). results: the performance of healthy blood circulation and heart is modeled and the obtained results used for further analyses. the stenosis of internal carotid artery at different rates was, then, induced in the circuit and the effects are studied. in stenosis cases, the effects of internal carotid artery occlusion on left anterior cerebral artery pressure waveform are investigated. conclusion: the findings of this study may have implications not only for understanding the behavior of human biological system at healthy condition but also for diagnosis of diseases in circulatory and cardiovascular system of human body.
منابع مشابه
A Lumped Parameter Method to Calculate the Effect of Internal Carotid Artery Occlusion on Anterior Cerebral Artery Pressure Waveform
Background and Objective: Numerical modeling of biological structures would be very helpful tool to analyze hundreds of human body phenomena and also diseases diagnosis. One physiologic phenomenon is blood circulatory system and heart hemodynamic performance that can be simulated by utilizing lumped method. In this study, we can predict hemodynamic behavior of one artery of circulatory system (...
متن کاملA Lumped Parameter Method to Calculate the Effect of Internal Carotid Artery Occlusion on Anterior Cerebral Artery Pressure Waveform
BACKGROUND AND OBJECTIVE Numerical modeling of biological structures would be very helpful tool to analyze hundreds of human body phenomena and also diseases diagnosis. One physiologic phenomenon is blood circulatory system and heart hemodynamic performance that can be simulated by utilizing lumped method. In this study, we can predict hemodynamic behavior of one artery of circulatory system (a...
متن کاملAnomalous internal carotid anastomosis to contralateral anterior cerebral artery.
BACKGROUND Many anomalies and variants in vascular anatomy have been reported in relation to the anterior cerebral artery (ACA). PATIENTS AND METHODS We encountered an apparently novel anomaly in a 30-year-old man admitted for disturbance of consciousness following a traffic accident. Computed tomography revealed an acute subdural hematoma and subarachnoid hemorrhage. RESULTS AND CONCLUSION...
متن کامل[Traumatic occlusion of the internal carotid artery].
A COMPIEETE review of published eases of internal carotid artery occlusions in children has been given by Fischer and Friedmann in 19561 and by Wisoff and Rothballer in 1961.2, 3 Frantzen, Jacobsen, and Tlierkelsell in 19614 reported three cases of traumatic occlusioil of the internal artery in children. The cause of a traumatic occlusion of the internal carotid artery might be a direct lesioni...
متن کاملHemodilution improves cerebral hemodynamics in internal carotid artery occlusion.
BACKGROUND AND PURPOSE Hemodilution may be a useful form of therapy for patients with carotid occlusive disease and hemodynamic ischemia. Accordingly, we evaluated the effects of hemodilution on cerebral hemodynamics and oxygen metabolism in patients with carotid artery occlusion. METHODS Using positron emission tomography, we analyzed regional cerebral blood flow, oxygen extraction fraction,...
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عنوان ژورنال:
journal of biomedical physics and engineeringجلد ۶، شماره ۱ Mar، صفحات ۰-۰
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