Extra- and Transcranial Doppler Ultrasound

Doppler and duplex ultrasound examine the blood flow and vessel walls in the arteries supplying the brain. Both the anterior and posterior carotid arteries as well as all major intracranial vessels can be analysed. A probe emits sound waves painlessly into the tissue. Doppler ultrasound makes the flow within the vessels audible and visible; colour-coded duplex ultrasound additionally shows the vessel itself and the vessel walls, including any calcifications or narrowings.

The examination is particularly important for assessing stroke risk, as strokes are predominantly caused by narrowing or occlusion of blood vessels. Other symptoms such as dizziness or memory problems can also be linked to reduced cerebral blood flow. It can also provide information about the overall blood supply to the brain, which may play a role in the development of dementia.

If the examination is performed as a preventive screening, it is not covered by statutory health insurance. Nonetheless, detecting narrowings of the arteries supplying the head and neck early is very worthwhile. When such narrowings are identified early, stroke risk can be reduced through changes in diet and lifestyle, certain medications, and — where appropriate — surgery. The examination can also be very useful for dizziness, headache, or difficulties with concentration and memory. We are happy to offer this diagnostic service as an individual health service (IGeL). Please speak to our assistants for details.