The essentials of extracranial carotid ultrasonographic imaging

Radiol Clin North Am. 2014 Nov;52(6):1325-42. doi: 10.1016/j.rcl.2014.07.010. Epub 2014 Sep 4.

Abstract

In this article, the standard ultrasonographic scanning techniques and Doppler settings necessary to produce reliable and reproducible carotid imaging are discussed. The normal carotid anatomy is reviewed, including grayscale, color Doppler, and spectral Doppler imaging appearances, is reviewed. The vascular abnormalities caused by atherosclerosis are examined, including plaque morphology characterization as well as waveform and velocity changes caused by stenosis, are examined. In addition, special situations are explored, such as imaging in the presence of an arrhythmia or cardiac assist devices. Imaging after carotid intervention is discussed, including the complications associated with these procedures.

Keywords: Atherosclerosis; Carotid arteries; Doppler imaging; Hemodynamics; Plaque; Sonography; Stenosis; Ultrasonography.

Publication types

  • Review

MeSH terms

  • Atherosclerosis / complications
  • Atherosclerosis / diagnostic imaging*
  • Carotid Arteries / diagnostic imaging*
  • Carotid Stenosis / diagnostic imaging*
  • Carotid Stenosis / etiology
  • Humans
  • Ultrasonography