What is indicated by an ICA PSV greater than 273 cm/sec and an EDV of 125 cm/sec?

The provided values of ICA PSV (Internal Carotid Artery Peak Systolic Velocity) greater than 273 cm/sec and EDV (End Diastolic Velocity) of 125 cm/sec are key indicators in the evaluation of carotid artery stenosis.

When the ICA PSV exceeds 230 cm/sec, it suggests the presence of significant stenosis, particularly as the values approach or surpass the 270 cm/sec threshold. These velocities specifically correlate well with established criteria for diagnosing different grades of carotid artery stenosis.

The threshold of ICA PSV greater than 273 cm/sec characteristically aligns with a stenosis greater than 70%, and when accompanied by an EDV of 125 cm/sec, it strengthens the likelihood of an 80% or greater stenosis. Therefore, this combination of velocities indicates a case that is borderline for 80% stenosis as it meets the criteria set forth in vascular ultrasound protocols.

While significant external compression could alter hemodynamics, the specific values given typically suggest a pathological process such as stenosis rather than compression. Similarly, diagnosing a 90% stenosis would require different velocity measurements.

Thus, with regard to the ICA PSV and EDV provided, indicating a borderline situation for