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The test examines the anatomy and function of the supraortic arterial arteries, the large arteries that carry blood from the arch of the aorta to the head and upper limbs. The main pathology affecting the supraortic arterial arteries is atherosclerosis, which is a general disease of the arteries, which can affect this arterial territory or the arteries of the heart (the coronaries) or that of the lower limbs (in arteritis). these plaques can form tight strictures and thus obstruct the interior of the arteries and restrict blood flow, or release clots or fragments of plaque into the circulation of the brain or even cause complete thrombosis of the carotid artery.
Supra-aortic trunk ultrasound doppler ultrasound is performed in the following circumstances:
- if the physical examination reveals a murmur in the neck, which may indicate an arterial narrowing;
- in a patient who has had an ischemic-type stroke (due to lack of blood);
- in a patient who has presented symptoms suspected of being a transient ischemic stroke (symptoms of short duration such as speech or motor disturbances or black veil in front of one eye).
- to monitor a patient with narrow enough carotid artery stenosis (= stenosis) to determine whether the operation is indicated to prevent the onset of ischemic stroke.
- to monitor a patient who has been operated on for a carotid artery stenosis.
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