Manifestations of cardiac disease in carotid duplex ultrasound examination.

نویسندگان

  • Surabhi Madhwal
  • Sandra Yesenko
  • Esther Soo Hyun Kim
  • Margaret Park
  • Susan M Begelman
  • Heather L Gornik
چکیده

The assessment of carotid artery stenosis severity using CDUS is largely dependent on the pattern and velocities of blood flow within the carotid arteries, with the peak systolic velocity (PSV) in the internal carotid artery generally serving as the primary diagnostic parameter. There are a number of cardiac disorders that can affect flow velocities and Doppler waveforms within the cerebrovasculature. It is important to recognize these disorders for multiple reasons, including the potential to inaccurately diagnose carotid artery stenosis. In addition, as CDUS may be obtained for the evaluation of nonspecific symptoms, such as dizziness or syncope, it may be possible to identify clues to the presence of a cardiac etiology through careful assessment of the Doppler waveforms. The sonographic clues on a CDUS examination that suggest an underlying cardiac disorder include abnormal spectral Doppler waveform morphology, waveform abnormality in multiple vessels (e.g., common/internal carotid and vertebral arteries), waveform abnormality bilaterally, and unusually low or high velocities in the absence of significant vascular lesions on color and/or gray-scale imaging.

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عنوان ژورنال:
  • JACC. Cardiovascular imaging

دوره 7 2  شماره 

صفحات  -

تاریخ انتشار 2014