Diagnosis of intracranial occlusive disease before carotid endarterectomy: preliminary experience with transcranial colour-flow Doppler ultrasonography.
case_report · Level V
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Abstract
Transcranial colour-coded Doppler ultrasonography allows both imaging and simultaneous haemodynamic investigation of the basal cerebral arteries. Four of 16 patients undergoing carotid endarterectomy were found to have intracerebral artery stenotic disease by use of this technique. Discrete stenotic segments were recognized by their markedly raised blood flow velocities with damping of the spectral Doppler waveform distally. Colour-coded transcranial Doppler ultrasonography used in conjunction with extracranial duplex imaging might provide an effective and safe alternative to angiography.
Medical subject headings
- Arterial Occlusive Diseases
- Cerebral Arteries
- Ultrasonography, Doppler, Transcranial