Radiologic importance of a high-resistive vertebral artery Doppler waveform on carotid duplex ultrasonography.


OBJECTIVE The appearance of the vertebral artery (VA) waveform on a pulsed Doppler examination performed during standard carotid duplex ultrasonography (CDU) may suggest vertebrobasilar disease. We sought to determine the radiographic importance of high-resistive (HR) pulsed Doppler VA waveforms seen on CDU. METHODS The Noninvasive Vascular Laboratory… (More)


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