Page 82 - Libro 2
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PART 2 — CEREBROVASCULAR
A
B
C with collateral artery reconstitution.
Figure 4-34 Abnormal vertebral artery Doppler flow signals. A: Progression from normal waveform contour to reversed vertebral artery flow. B: Vertebral artery ste- nosis. C: Proximal extracranial vertebral artery occlusion
