MRI of cerebral vessels
MRI of cerebral vessels is a methodresearch of large cerebral vessels with the help of nuclear magnetic resonance. The procedure is carried out to clarify the diagnosis or to confirm it, as well as to determine the scope of the subsequent operation. Allows you to assess the condition of the bloodstream of the brain and assess the nature of the damage, if any.
MRI of cerebral vessels. Direct indications
Emergency conditions:
- Acute disorders of blood circulation of the brain are hemorrhagic or ischemic.
- Craniocerebral injury.
In these cases, MRI is assigned after CT (CT scan of the brain).
Scheduled research:
- Tumor of the pituitary gland, brain, its membranes or suspicion of them.
- Diagnosis of demyelinating or degenerative diseases.
- Focal inflammatory processes of the brain and blood vessels.
- Assessment of the state of liquor-containing structures and cerebrospiratory cerebral pathways (porencephaly, hygromas, cysts).
- Stenoses of intracranial vessels, arteriovenous aneurysms of the brain, as well as stenoses of vascular malformations.
- Abnormalities of development of cerebral vessels.
- Assessment of the state of the brain and blood vessels after CCT.
- Assessment of the state of the brain and blood vessels after cerebral circulation disorders.
- Diseases of the pituitary gland or suspicion of them.
- Evaluation of the results of surgical treatment of diseases of the brain.
- Atrophy of the optic nerve.
- Volumetric lesions of the orbit, nasopharynx, paranasal sinuses.
- Neurinoma of the auditory nerves.
MR - angiography
Study - MR angiography of cerebral vesselsallows in a short time and without the use of contrast agents to diagnose the vessels of the brain. The study is used as a screening method for primary diagnosis of patients. So does MRI scan the brain for diagnosis?
MRI examination of brain vessels shows:
- the size of vascular malformations;
- information on morphology;
- anatomical localization;
- the nature of venous drainage;
- body, dome, aneurysm cervix;
- the ratio is the neck-body;
- aneurysm size;
- presence of a blood clot inside the vessel.
In which cases MRI study of brain vessels in adults?
An MRI scan of the brain is indicated if the patient has:
- headaches, dizziness of unknown origin;
- fainting, confusion, loss of consciousness;
- violation of sensitivity (numbness, sharp pain, tingling) on the face;
- hearing loss or vision of unclear etiology;
- noise in ears;
- hypertensive disease, frequent hypertensive crises;
- loss of memory, amnesia.
MRI of the brain. Contraindications: direct and relative
Direct contraindications include:
- installed pacemaker;
- implants of the middle ear (electronic or ferromagnetic);
- ferromagnetic devices Ilizarov;
- ferromagnetic fragments;
- vascular hemostatic clips;
- large implants made of metal.
Relative contraindications are:
- insulin pumps;
- nonferromagnetic implants of the middle and inner ear;
- nerve stimulators;
- claustrophobia;
- Prosthetic heart valves;
- Decompensated heart failure;
- early gestation;
- inadequacy of the patient;
- the need for physical monitoring;
- severe condition of the patient.
MRI of cerebral vessels is contraindicatedpatients with tattoos, made with dyes with metal compounds. Cochlear implants (inner ear prostheses) are also a contraindication to the procedure.
MRI of cerebral vessels is an excellent opportunity to instantly diagnose the state of the brain vessels.