MRA of Cerebral Arteries
Magnetic resonance angiography (MRA) of the cerebral arteries is a highly informative and completely safe diagnostic method. It allows detailed visualization of the structure, function and condition of brain vessels, detection of stenosis, abnormalities, aneurysms and circulation disorders. In most cases the study is performed without contrast.
When Is the Study Recommended?
- congenital or acquired vascular abnormalities;
- suspected aneurysm;
- atherosclerotic vessel changes;
- arterial hypertension (for prevention of complications);
- vascular tumors;
- unexplained headaches, dizziness, vision or hearing changes;
- head trauma;
- suspected cerebral vasculitis;
- diabetes mellitus to assess vascular damage;
- occlusion or stenosis of brain vessels;
- symptoms of venous thrombosis.
What Does MRA Show?
MRA helps detect:
- atherosclerosis;
- aneurysms;
- vascular malformations;
- encephalopathy;
- micro- and macro-strokes;
- vascular stenosis and occlusions;
- hematomas and circulation disturbances.
When necessary, contrast is used to visualize thrombi, tumors, microlesions and the exact area of stenosis. The method is also used to monitor treatment progress.
How Is the Procedure Performed?
- The patient changes into disposable clothing and removes all metal objects.
- They lie on the MRI table and must remain still during the scan.
- The table is moved inside the MRI scanner. Communication is maintained through an intercom or alarm button.
The procedure lasts about 30 minutes. If contrast is required, the time increases to 60–90 minutes. No special preparation is needed.
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