Neurosonology:神経超音波医学
Print ISSN : 0917-074X
ISSN-L : 0917-074X
Transcranial Doppler Sonographyによる頭蓋内異常血管の血行動態の検討
由比 文顕大山 博司門田 紘輝朝倉 哲彦
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1991 年 4 巻 1 号 p. 9-13

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Hemodynamics of Intracranial vessels were evaluated by Transcranial Doppler Sonography (TCD) . In 30 healthy subjects and 12 patients (AVM 4, Moyamoya disease 3, cerebral tumor 3, giant aneurysm 2) . Blood flow velocity and S/D ratio were measured. CO2reactivity during hyperventilation was also studied.
TCD obtained abnormal velocity waveform in 8 out of 12 cases with Intracranial abnormal vessels. As to screening test method of intracranial abnormal vessels, TCD has some problems such as angle between ultrasonic beam and vessel, narrow acuostic window and sampling volume. But TCD is feasible for evaluation of cerebrovascular reactivity.

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