In recent decades, cardiovascular diseases are the main cause of mortality in developed and developing countries. The diagnosis and especially the assessment of the degree of risk of these pathologies constitute today the challenges that modern medicine dictates to us. One of the imaging examinations that is receiving attention in recent years in terms of cardiovascular risk assessment is the doppler ultrasound of carotid arteries. The knowledge about this examination, the indications and especially the correct interpretation of the data, will be a valuable tool in helping the work of the clinician.