Edema of the brain in uzi
In medicine, the diagnostic method withusing ultrasound. Its advantage is that it is harmless to the body, it makes it possible to obtain sufficiently complete information about the blood supply of all veins in the skull, is a painless method. An inseparable examination procedure for various pathologies and disorders is ultrasound of cerebral vessels. This is a very important part of the medical analysis of the mental state of a child and an adult.
Indications for ultrasound of cerebral vessels
Carrying out ultrasound of cerebral vessels is prescribed by a doctor in the presence of the following factors:
- after strokes;
- deterioration of hearing and memory;
- after operations on the veins of the neck and head;
- attacks of headache and imbalance;
- deterioration of vision and speech articulation;
- impaired consciousness, fainting;
- persistent nausea and frequent dizziness.
How is the preparation for the study of cerebral vessels
Before such a procedure, a certainpreparation. It will help to give a more accurate result. Within a few days before the survey, you need to limit yourself from eating food that affects blood pressure. You can not smoke before the ultrasound for an hour, but it is desirable more.
Correctly to conduct ultrasound of cerebral vesselsis recommended after the patient has undergone ultrasound of the cervical veins that carry blood to the cranium, since first you need to investigate the causes of disturbances from afar, away from the brain. This will give you more complete information about all violations. All the veins of the brain begin from two carotid arteries (left and right) and two vertebral (left and right). From the inner carotid, the anterior and middle cerebral and ocular arteries depart. The vertebral artery passes into the basic, which in turn is divided into the right and left posterior arteries. All arteries of the brain connect and form a ring, through which the blood flow is redistributed.
When carrying out the procedure on the area under studya special medical gel is applied. It serves to improve the conductivity of ultrasonic waves. Then, by conducting a sensor in this area, the specialist receives information about different arteries. The entire process takes about half an hour and is painless.
The essence of the procedure is that ultrasoundThe waves, when they pass through a blood vessel, are reflected differently. It all depends on the speed and amount of blood flow moving in different veins. The resulting reflected ultrasonic waves become electrical pulses and are output to the screen. The doctor finds out the violations of blood circulation in the vessels and determines the place where they contract or their thrombosis occurs.
The procedure of ultrasound of the veins in the brain is done in three accessible areas:
- Glazed - examine the blood flow in the eye artery. This ultrasound makes it possible to see an abnormal blood flow if there is a blockage of the intracerebral arteries;
- Temporal - do ultrasound at the base of the brain, examining the middle, anterior and posterior cerebral arteries, as well as the veins of Galen, the veins of Rosenthal and the direct sinus;
- Occipital - examining through a large opening in the occiput, examining the intracranial parts of the vertebral and main arteries, as well as the direct sinus and the veins of Galen.
During this session,Functional tests: holding the breath, increasing breathing, closing and opening the eyes, taking nitroglycerin. They allow us to evaluate the mechanism of blood supply and identify the process of the occurrence of pain in the head, movement coordination disorders, the appearance of edema of the face and the fundus and other abnormal conditions. Functional tests are an integral part of the whole process.
What diseases can detect doppler ultrasound?
Blood clot in the brain vessel
Using Doppler ultrasound of cerebral vesselsit is possible to ascertain more accurate informative data on the presence of constrictions and anomalies in the arrangement of the vessels. Investigating the speed of blood flow in the main arteries and veins in the head can reveal circulatory disorders.
Ultrasound allows you to see cerebral spasmvessels (caused by circulatory disorders, brain edema, increased blood pressure) and hyperperfusion (with an increase in blood flow velocity, the vessel widens), which occurs with hormonal changes in hemorrhage, hypoxia, and craniocerebral trauma. Using this procedure, the speed of movement of blood through the veins is investigated. With increasing intracranial pressure, the blood flow velocity increases.
This method provides the following information:
- Determine the speed of blood flow in large veins;
- To detect vascular disorders at the initial stage, including thrombi and atherosclerosis;
- Identify the presence of arterial narrowing, assess their scales and find out the location;
- Find out possible causes of frequent headaches;
- Assess the state of outflow of blood through the veins of the neck;
- To reveal the expansion of arteries;
- To detect or suspect violations in the vessels at the initial stages,
- Formation of blood clots and arteriosclerosis of blood vessels.
Ultrasound of cerebral vessels in newbornshelps to identify pathologies at an early stage and makes it possible to quickly start treatment. This method of examination gives the most informative result about circulatory disorders in the skull in children. Various temporal pains, dizziness, deterioration of memory and cognitive functions, change in intracranial pressure, impaired coordination of movement - all this affects the further mental and physical development of the baby. Therefore, it is very important to carry out this procedure in childhood.
How much does an ultrasound examination of the brain vessels?
The price of ultrasound of cerebral vessels is different and depends on the clinic and the region of residence. On average, its cost is from 600 rubles to 4,000 rubles.