Which of the following statements regarding carotid artery stenosis is accurate?

The statement that higher end-diastolic velocities suggest severe stenosis is accurate. In the context of carotid artery stenosis, blood flow dynamics are altered as the degree of narrowing increases. When stenosis occurs, the flow becomes more turbulent and accelerates as it passes through the narrowed segment. This acceleration is reflected in higher end-diastolic velocities, which are indicative of significant obstruction.

In clinical practice, measuring these velocities helps healthcare professionals evaluate the severity of the stenosis. A higher end-diastolic velocity often correlates with more than 50% or even 70% stenosis, making this parameter crucial in diagnosing and assessing treatment options for carotid artery disease. Understanding this relationship is essential for anyone involved in vascular technology, as it assists in making informed clinical decisions.