Why the study?
Does transcranial colour-coded Doppler ultrasonography detect intracranial occlusive disease in patients undergoing carotid endarterectomy?
Does transcranial colour-coded Doppler ultrasonography detect intracranial occlusive disease in patients undergoing carotid endarterectomy?
Transcranial colour-coded Doppler ultrasonography, used with extracranial duplex imaging, may provide an effective and safe alternative to angiography for detecting intracranial occlusive disease before carotid endarterectomy.
TCCD may aid preoperative intracranial assessment in CEA; leaves open validation versus angiography before any practice change.
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.
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Martin et al. (1994) studied this question.
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