Evaluation of cerebrovascular spasm with transcranial Doppler ultrasound.

  title={Evaluation of cerebrovascular spasm with transcranial Doppler ultrasound.},
  author={Rune Aaslid and Peter Huber and Helge Nornes},
  journal={Journal of neurosurgery},
  volume={60 1},
The use of an ultrasonic transcranial Doppler technique for noninvasive evaluation of cerebral vasospasm is described. Middle cerebral arteries (MCA's), classified as spastic on angiography, demonstrated blood-flow velocity between 120 and 230 cm/sec. The flow velocities in these arteries had a clear inverse relationship to the diameter as measured from angiograms in 38 patients with recent subarachnoid hemorrhage. This relationship in the proximal anterior cerebral artery (ACA) was found to be… CONTINUE READING
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