Transcranial Doppler Ultrasonography(TCD)의 참고치와변화 요인들과의 연관성
Reference Values of Transcranial Doppler Ultrasonography Measurement and Relation with Change Factor
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Abstract
Objective : We present reference values of flow velocities of intracranial and extracranial cerebral arteries and relation with change factor.Method : We checked transcranial Doppler ultrasonography on mean velocity, systolic velocity, pulsatility index, and resistance index of 252 patients. We also compared differences of change factor.Result : The result showed a difference by sex and age and relevance between vessels besides mean velocity of vessels related with past history and social history.Conclusion : According to the above results, females showed higher velocity of all vessels. With advancing age, subjects showed reduction in velocity and increase in pulsatility index and resistance index. Anterior cerebral, middle cerebral, and posterior cerebral artery increased in proportion to velocity of internal carotid artery and basilar artery. Vessel velocity correlated with diabetes mellitus, hypertension and hyperlipidemia.
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