Carotid Artery Ultrasound scanning
Ultrasound of the carotid artery can be done for two reasons. Firstly to act as a window to the rest of the blood vessels. It can show early signs of hardening of the arteries. The ratio of the inner lining to the middle lining (the Intimal:Media ratio) is linked to the risk of future heart attacks and strokes. This can be used to help guide drug treatments.
Secondly, if a very narrowed Internal Carotid Artery (ICA) is found on carotid duplex scanning , then treatment with tablets may need to be augmented with either Carotid Endarterectomy (CEA) or Carotid Artery Stenting (CAS).
On left CT reconstruction of internal carotid artery stenosis. On right carotid duplex scan showing the same stenosis.