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Analysing the Changes of Intracranial Hemodynamics in Patients with Internal Carotid Artery Stenosis or Occlusion by TCD Examination

Huiling Liu

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Abstract

Objective:To analyse the changes of intracranial hemodynamics in patients with intracranial artery stenosis ≥70% or occlusion by TCD examination.Method:We evaluated the changes of 43 cases intracranial hemodynamics examined with TCD,who were diagnosed as internal carotid artery stenosis or occlusion with CTA.Result:The mean velocity and pulsatility index was lower in patients with severe carotid artery stenosis in MCA than those in normal group.While it was lowest in patients with carotid artery occlusion(P0.05).The opening of anterior and posterior communicating artery,internal and outernal carotid artery was 58.14%,48.84% and 44.19% respectively in collateral circulation.Conclusion:The examination of TCD and CTA proved the relation of collateral circulation with decrease of blood volume in the same side with severe internal carotid artery stenosis or occlusion

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Objective:To analyse the changes of intracranial hemodynamics in patients with intracranial artery stenosis ≥70% or occlusion by TCD examination.Method:We evaluated the changes of 43 cases intracranial hemodynamics examined with TCD,who were diagnosed as internal carotid artery stenosis or occlusion with CTA.Result:The mean velocity and pulsatility index was lower in patients with severe carotid artery stenosis in MCA than those in normal group.While it was lowest in patients with carotid artery occlusion(P0.05).The opening of anterior and posterior communicating artery,internal and outernal carotid artery was 58.14%,48.84% and 44.19% respectively in collateral circulation.Conclusion:The examination of TCD and CTA proved the relation of collateral circulation with decrease of blood volume in the same side with severe internal carotid artery stenosis or occlusion

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Available abstract

Objective:To analyse the changes of intracranial hemodynamics in patients with intracranial artery stenosis ≥70% or occlusion by TCD examination.Method:We evaluated the changes of 43 cases intracranial hemodynamics examined with TCD,who were diagnosed as internal carotid artery stenosis or occlusion with CTA.Result:The mean velocity and pulsatility index was lower in patients with severe carotid artery stenosis in MCA than those in normal group.While it was lowest in patients with carotid artery occlusion(P0.05).The opening of anterior and posterior communicating artery,internal and outernal carotid artery was 58.14%,48.84% and 44.19% respectively in collateral circulation.Conclusion:The examination of TCD and CTA proved the relation of collateral circulation with decrease of blood volume in the same side with severe internal carotid artery stenosis or occlusion

Key concepts: Medicine, Stenosis, Collateral circulation, Occlusion, Internal carotid artery, Hemodynamics, Cardiology, Internal medicine

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Analysing the Changes of Intracranial Hemodynamics in Patients with Internal Carotid Artery Stenosis or Occlusion by TCD Examination — Research Paper | ScholarLens