Reneman R S, Van Merode T, Hoeks A P
Int Angiol. 1985 Jan-Mar;4(1):3-8.
Basically two principles have to be distinguished in ultrasonic imaging of arteries. In velocity imaging blood flow velocities are visualized with continuous wave or pulsed Doppler devices. In pulsed echo-systems artery wall structures are visualized by picking up echoes reflected by the vessel walls. Velocity imaging is mainly used to localize the site of velocity sampling which is of importance in screening the carotid artery bifurcation and in follow-up studies. Although promising results have been obtained in diagnosing atherosclerotic lesions with echo-imaging systems, these systems have their limitations. To improve the diagnostic accuracy these systems should be combined with a single- or multi-gate pulsed Doppler system.
基本上，在动脉超声成像中必须区分两个原理。在速度成像中，使用连续波或脉冲多普勒设备来显示血流速度。在脉冲回波系统中，通过接收血管壁反射的回波来显示动脉壁结构。速度成像主要用于确定速度采样的位置，这在筛查颈动脉分叉和随访研究中很重要。尽管在使用回波成像系统诊断动脉粥样硬化病变方面已经取得了有希望的结果，但这些系统仍有其局限性。为了提高诊断准确性，这些系统应与单门或多门脉冲多普勒系统相结合。
