Cervical artery exploration: choice and need for a non-invasive technique.

The different non-invasive exploratory techniques for cervical arteries are compared and classified as hemodynamic exploration methods (continuous and pulsed Doppler testing, frequency profile analysis, oculoplethysmography), and imaging methods (ultrasonic and real-time echotomography imaging). We believe that the best results can be obtained by associating frequency profile analysis with real-time echotomography or Doppler testing with real-time echotomography. The choice between these combined modalities is determined by the clinical context and particularly whether the patient is symptomatic or not. Angiography and therapeutic strategy may be indicated either immediately after a Doppler test or after more extensive examination.