Cardiac cycle-dependent alternating flow in vertebral arteries with subclavian artery stenoses.

@article{Reutern1978CardiacCA,
  title={Cardiac cycle-dependent alternating flow in vertebral arteries with subclavian artery stenoses.},
  author={Gerhard M von Reutern and Leandre Pourcelot},
  journal={Stroke},
  year={1978},
  volume={9 3},
  pages={229-36}
}
Continuous-wave Doppler sonography is a reliable method for detecting severe subclavian stenosis and occlusion as well as subclavian steal. Intermediate stages leading to subclavian steal can also be detected. These are characterized by a cardiac-phase-dependent alternating flow direction in the vertebral artery. Some cases of proximal subclavian or proximal vertebral artery stenosis produce a systolic deceleration of flow in the vertebral artery. Stenosis and occlusion of the subclavian artery… CONTINUE READING
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