Transcranial Doppler and rCBF compared in carotid endarterectomy.
Transcranial Doppler and rCBF compared in carotid endarterectomy.
复制标题
经颅多普勒和 rCBF 在颈动脉内膜切除术中的比较。
DOI：
10.1161/01.str.17.6.1206
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发表时间：
1986
期刊：
影响因子：
8.3
通讯作者：
Gelman,S
中科院分区：
文献类型：
--
作者：
Halsey,JH;McDowell,HA;Gelman,S
在8例接受颈动脉内膜切除术的患者中，应用经颅多普勒超声连续监测大脑中动脉的平均血流速度和脉搏振幅指数。在颈动脉闭塞前不久和闭塞时，以及在颈动脉血流重建后几分钟，通过颈动脉内注射133氙测量rCBF。MCA和皮质凸面rCBF的平均速度比较显示，从闭塞前到闭塞后，它们之间的关系相对滞后较小。然而，患者之间的这种关系存在相当大的差异。在3例病例中，rCBF和流速在闭塞时均显著降低，3例病例中变化不大。2例rCBF明显下降，但血流速度无明显变化。脉搏幅度指数对闭塞更为敏感，在记录到脉搏幅度指数的7例病例中有所下降，其中1例rCBF没有变化。
In eight patients undergoing carotid endarterectomy, the mean velocity and an index of pulse amplitude in the middle cerebral artery were monitored continuously by transcranial doppler ultrasound. rCBF was measured by intracarotid injection of 133 Xenon shortly before and at the time of the carotid artery occlusion, and again a few minutes after carotid flow was reestablished. Comparison of the mean velocity in the MCA and the cortical convexity rCBF revealed relatively little hysteresis in their relationship from prior to after the occlusion. There was however, considerable variability in this relationship among patients. Both the rCBF and the velocity decreased substantially at occlusion in three cases, neither changed very much in three. While in two, though the rCBF decreased significantly, the velocity did not change. The index of pulse amplitude was somewhat more sensitive to the occlusion, decreasing in the seven cases in which it was recorded, including one in which the rCBF did not change.