This publication describes the development of the diagnosis of stenosing diseases of brain-
supplying arteries using ultrasound Doppler sonography, based on the personal experience …

This chapter describes the parameters on which the Doppler sonographic assessment of
blood flow is based: The measured flow velocity correlates with the degree of stenosis, flow …

Obstructions in the extracranial cerebral arteries can be detected noninvasively by
directional Doppler ultrasound technique using 'indirect'and 'direct'criteria. The indirect …

The result of angiographic and ultrasonographic investigations were compared in 87
patients with cerebral circulation disturbances. A high degree of agreement (79%) was …

Ultrasound and Doppler phenomenon form the basis of the ultrasound diagnostics of blood
vessels. They permit to visualize vessel walls and blood flow and to measure its velocity and …

Stenoses and occlusions of the large cerebral arteries have different causes and are not
only caused by arteriosclerosis, but also due to vasculitis, vasospasms, congenital vascular …

Doppler ultrasound allows to detect directly in the area of a stenosis pathologic flow
phenomena as well as in the pre-and poststenotic segments and in the collateral arteries …

We have investigated 6,587 patients with directional continuous-wave (cw) Doppler
sonography of the carotid arteries during the last 33 months, and have developed criteria for …

Using contrast and Doppler ultrasonic diagnostic methods the authors examined 78 internal
carotid arteries in 67 patients with cerebral circulatory disturbances. Ultrasonographic …

One hundred and fifty-eight patients (99 men and 59 women) aged 20 to 76 years, all with
extracranial cerebral artery stenoses, were submitted to both transcranial Doppler …