A carotid ultrasound examination uses sound waves to create images of the arteries in the neck that supply blood to the brain. These images provide crucial data about the structure and function of these vital blood vessels, revealing details such as blood flow velocity and the presence of plaque buildup. For instance, the examination can identify areas of narrowing (stenosis) or complete blockages, which can significantly increase the risk of stroke. The visualized characteristics of any identified plaque, such as its texture and composition, further contribute to risk assessment.
Evaluating the condition of the carotid arteries plays a vital role in preventing strokes. By identifying potential issues early, healthcare professionals can implement appropriate interventions, such as lifestyle modifications, medication, or surgical procedures, to reduce the risk of stroke. This non-invasive procedure has become a cornerstone of cerebrovascular diagnostics due to its safety, affordability, and ability to provide real-time information. The development and refinement of ultrasound technology over decades have significantly improved the accuracy and reliability of these evaluations, leading to more effective stroke prevention strategies.