Clinical applications of high resolution B-scan imaging with pulsed Doppler profiles (10 MHz)

摘要: A variety of non-invasive techniques have been developed for the detection extracranial arterial disease (EAD) in recent years [1–7]. Some them assess hemodynamics carotid system (e.g., continuous wave and pulsed Doppler, Doppler imaging, frequency spectrum analysis bruits signals), others attempt to visualize morphology neck (high-resolution real-time ultrasound B-mode duplex scanning). Since each these measures different parameters, question arises as what extent they provide similar or complementary information how reliably can diagnose stages EAD. Although some methods shown be high diagnostic value management treatment symptomatic patients with cerebrovascular disease, confusion still exists about medical strategies asymptomatic subjects due considerable lack knowledge on natural history prognosis associated EAD [8–10]. In particular, we often fail predict hemodynamic significance regard preservation compensation cerebral collateral circulation hardly understand mechanisms progression repair small plaques their risk becoming sources embolism. Thus, major aim research recently highly sophisticated imaging techniques, combined new providing a more detailed intra-arterial flow characteristics, is gain accurate interaction alterations disturbances, which are thought reflect hazards disease.