Clinical study of cerebrovascular reactivity in cerebral infarction by transcranial color Doppler ultrasound and breathing-holding test
- VernacularTitle:经颅彩色多普勒超声结合屏气试验评价脑梗死患者脑血管反应性
- Author:
Ronggui LIU
;
Yunqiu QIAN
;
Guangbin HE
;
Haibin ZHANG
- Publication Type:Journal Article
- Keywords:
Ultrasonography,Doppler,transcranial;
Cerebral infarction;
Cerebrovascular circulation;
Hemodynamics
- From:
Chinese Journal of Ultrasonography
1993;0(04):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the cerebrovascular reactivity of the patients with cerebral infarction by transcranial color Doppler ultrasound (TCCD) and breath holding test.Methods TCCD was used to record the color Doppler imaging and Doppler spectrum and to measure peak velocity,mean velocity of double side middle cerebral artery(MCA) in thirty two normal persons and thirty seven patients with cerebral infarction confirmed by CT or MRI.Breath holding test was performed to record the Doppler spectrum and breath holding time and to calculate breath holding index(BHI).Results ①The peak velocity of MCA of the damaged side was abnormally increased by 35.1% and decreased by 40.5% .②The BHI of the damaged side was significantly lower than that of undamaged side and that of control group (P
