What is the difference between the study of MRI of the brain from MRI of cerebral vessels, a comparative analysis of methods

1 The procedure of MRI of the brain,

MRI, makes it possible to diagnose various brain diseases. It shows the structure of the substance of the brain, while not transmitting the image of the structure of the vessels. Carrying out the given inspection, it is possible to find out various structural infringements of a brain. Magnetic resonance imaging of the brain diagnoses such diseases as:

1. The presence of hematomas with concussion of the brain.
2. Brain tumor - intracranial neoplasms( benign and malignant) in the form of glioma, meningioma, neurinoma, etc.
3. Stroke is an acute violation of the cerebral circulation, leading to damage and death of nerve cells. And also microinsult( especially at an early stage) - a short-term disorder of cerebral circulation, which differs from a stroke not so extensive damage, but small-focal hemorrhage.
4. Infections that cause meningitis( inflammation of the soft membranes of the brain caused by bacteria and viruses), encephalitis( infection of the membranes and brain tissues leading to their inflammation).
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5. Congenital malformations( defects) of development - deviations from the normal structure of the body.
6. Hydrocephalus( hydrocephalus) is a fluid accumulation in the brain.
7. Epileptic seizures.
8. Trauma of the brain that caused a hemorrhage.
9. Diagnosis of lesions of the nervous system( multiple sclerosis).
10. Visual impairment and impairment of inner ear function( purulent discharge along with infection can cause meningitis or ulceration in the brain).
11. Disorders of the pituitary gland - the endocrine gland located in the brain at the base of the skull.
12. Vascular diseases, such as aneurysms( bulging artery wall due to its thinning or stretching), occlusion of the vessels of the head( obstruction of blood vessels due to clotting with a thrombus), thrombosis of venous sinus vessels.
13. Dementia is a violation of the flow of blood in the vessels of the brain, leading to a degeneration of memory and thinking.

2 Diagnosis of MRI of cerebral vessels

Magnetic resonance imaging of the vessels of the head allows accurate diagnosis of all vascular diseases of the brain without the use of radiography, X-ray computed tomography and artery puncture.

Tomography can be performed according to different programs and with different loads. The main advantage of this method is that it makes it possible to see and evaluate both the structural and functional picture of the brain vessels.

The conduct of such an MRI allows a good examination of the anatomical and physiological state of blood vessels and assess the physico-chemical and biological processes that occur in the brain tissues. This resonance tomography makes it possible to confirm or refute the following diseases:

1. Atherosclerosis is a disease in which cholesterol is deposited in the walls of blood vessels.
2. Aortic aneurysm - a violation of the structure of the walls of the aorta, in which its diameter increases.
3. Dissection( dissection) of the aorta.
4. Stenosis( compression) of the lumen in the arteries.
5. Congenital heart disease - an anatomical defect of the heart valves, partitions, walls, outgoing vessels, which disrupts the flow of blood in the body.
6. Occlusion - violation of the patency of blood vessels due to complete blockage of their thrombus.
7. Thrombosis - the formation of blood clots inside the blood vessels leading to clogged blood flow.
8. Vasculitis is an inflammatory lesion and a violation of the walls of the vessels.
9. Vascular malformations - a violation of the development of the circulatory system due to incorrect connection of arteries or veins with the formation of vascular glomeruli of different shapes and sizes.
10. Post-stroke stroke, which occurs with a significant reduction in the flow of the required amount of blood to a specific area of ​​the brain due to the formation of a thrombus blocking the artery or capillary( ischemic stroke), or because of rupture of the blood vessel( hemorrhagic stroke).
11. Frequent headaches of unclear etiology.
12. Craniocerebral injury.
13. Tumor of the brain.

When the patient is dizzy, tinnitus, frequent headaches, ischemia, vegetovascular dystonia, a magnetic resonance imaging examination is performed. It is able to create a three-dimensional image of the supply of blood to individual sections in a specific projection on the investigated head section. Its advantage, in contrast to CT angiography, is a complete examination of blood clots, hematomas, aneurysms without the use of irradiation.

3 Restrictions in conducting magnetic resonance imaging

MRI does not expose the body to ionizing radiation, therefore it is considered quite safe. Only occasionally, a large dose of contrast material, which is injected( not always, in some cases) into the body to obtain more clear data, can cause a mild allergic reaction. In very rare cases, there is a complication in the form of nephrogenic systemic fibrosis( the appearance of extensive areas of thickening and thickening of the skin) in people suffering from acute kidney failure.

During the examination, it is necessary to remove all metal objects. Therefore, the presence of non-removable implants and metal teeth can cause a certain difficulty due to the presence of a powerful magnet in the scanner.

It is not recommended to conduct an MRI scan to pregnant women.