Diagnosis of intracranial occlusive disease before carotid endarterectomy: preliminary experience with transcranial colour-flow Doppler ultrasonography.
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.
Martin
P J
PJ
Department of Neurology, Leicester Royal Infirmary, UK.
Gaunt
M E
ME
Naylor
A R
AR
Bell
P R
PR
D000368:Aged; D000369:Aged, 80 and over; D001157:Arterial Occlusive Diseases / Q000000981:diagnostic imaging* / Q000601:surgery; D001783:Blood Flow Velocity; D002536:Cerebral Arteries / Q000000981:diagnostic imaging* / Q000502:physiology / Q000503:physiopathology; D016894:Endarterectomy, Carotid; D006801:Humans; D008297:Male; D008875:Middle Aged; D012016:Reference Values; D017585:Ultrasonography, Doppler, Transcranial