Is it possible to prevent a stroke? Modern diagnostic methods give a positive answer to this question. New research technologies can detect problems in the work of the vessels of the head at an early stage. A special procedure, the UZDG of the vessels of the neck and head, helps to look inside the human skull box without harming and pain. Should I be afraid of such an examination and who needs to undergo it?
New view on diagnostic issues - ultrasound against headache and stroke
The problem of a headache had to face many. Sometimes unpleasant and disturbing symptoms such as tinnitus, dizziness, and even loss of consciousness join it. What to do if the usual methods - a tablet of dipyrone, ketanov and other drugs to relieve headaches - no longer help? Before starting treatment, correct diagnosis is necessary.
The emergence of the USDG method - Doppler ultrasound - has allowed doctors to visually see what is happening in the patient's head: how the vessels work, whether there are reasons for urgent treatment or surgery. Now a specialist in functional diagnostics can determine the cause of pain in the head, not on the basis of patient complaints, but by the method of accurate and objective diagnosis.
Previously, it was not possible to check the condition of the vessels of the head and neck, because the bones of the skull were an obstacle to the passage of signals. UZDG of vessels of the neck and head has become today the most reliable method of examination, which allows to detect pathologies associated with impaired blood flow.
What is the main principle of the USDG method?
Some patients are frightened when the doctor offers them to make the USDG of the vessels of the head and neck. What it is, whether the survey will not have negative consequences, if there will be any pain during the procedure - the questions that worry them the most.
The device, which is used for USDG, emits ultrasonic waves, and then "catches" their reflections from red blood cells. This method is based on the difference of such indicators. That is, the procedure is nothing more than a kind of familiar ultrasound. It gives you the opportunity to see all the characteristics of the blood flow - in graphic, quantitative and sonic terms.
The procedure is completely safe, it does not cause unpleasant or painful sensations, it has no contraindications and does not have any radiation effect. Therefore, such a diagnosis can be done many times.
What vessels can be examined using ultrasound waves?
The method of USDG allows you to examine the vessels of the head and neck in a non-contact way, assess the speed of blood flow, determine whether there is a narrowing and how critical it is for health (or life).
The same method can be used to examine the arteries and veins of the upper and lower extremities in order to detect the nature of the lesions, their length and the need for surgical intervention. USDG is also used to study the aorta, ileal vessels, inferior vena cava and carotid artery. Such diagnostics are also carried out (under certain indications) for pregnant women in order to assess the work of the placenta and arteries of the uterus.
What is the function of the USDG of the neck and head vessels? What does such an ultrasound diagnosis show? It provides an opportunity to check the condition of the walls of blood vessels, how elastic they are; explore the surrounding tissue. It will also allow you to determine how freely, with what speed blood moves through the vessels. The doctor will see a complete picture of the work of the vascular system, including detecting such dangerous formations that interfere with blood flow, such as blood clots and plaques.
Duplex scanning and USDG - is there a difference?
It is difficult for a layman to even remember the clever names of modern diagnostic procedures - not that one understands what the difference is between this or that research. Therefore, duplex scanning of the neck and head vessels is often confused with USDG. Let's try to figure out how similar and how these methods differ.
The common thing is that both diagnostic technologies are Doppler variants. The purpose of Doppler ultrasound (USDG) is to establish the vascular permeability. The doctor does not see the vessel visually, he draws his conclusions on the basis of the graph that the device is building. The specificity of such a procedure also lies in the fact that the location for the installation of the sensor is chosen arbitrarily. The specialist focuses on the approximate points of the projection of blood vessels.
A more accurate method is duplex scanning of the vessels of the head and neck. As the name implies, this survey performs two functions. It not only examines the anatomy of blood vessels, but also shows the speed of blood flow. This is an improved method that eliminates the subjective factor associated with the qualifications of the doctor. Vessels and tissues are visible on the monitor (a picture appears on the screen, as with a normal ultrasound scan). Therefore, it is possible not only to determine that there is a poor vessel patency, but also to find out why such a violation occurred.
Duplex examination of the vessels of the head and neck is a unique opportunity to detect plaques, blood clots, deformation of the walls of blood vessels, that is, pathologies that lead to stroke, at an early stage.
When is ultrasound diagnostics of vessels necessary?
It may seem that the USDG is a procedure exclusively for adults. In fact, this is far from the case. Such examination is extremely necessary for children and teenagers. What conditions and diseases are the reason for conducting the USDG?
- if symptoms of perinatal encephalopathy are detected in children under 7 years of age;
- if a person suffers from insomnia, fatigue;
- with complaints of headache, dizziness, tinnitus, fainting;
- if there is a disorder of coordination of movements ("staggering" gait), visual impairment;
- patients with diabetes;
- increased blood pressure;
- if a subarachnoid hemorrhage is suspected;
- with atherosclerosis;
- A symptom that urgently requires a USDG is a violation of speech perception and understanding.
Due to 100% safety, a diagnostic procedure is often prescribed to adolescents to rule out vascular pathology for headache complaints.
Since the stroke sharply "looked younger", doctors strongly recommend not to wait for signs of a dangerous disease, but to monitor the work of their vessels. Therefore, the USDG is advisable to pass once a year to all who are at risk, namely smokers, women over 45 years old, men over 40 years old.
What diseases will dopplerography and duplex scanning show?
To cure the disease, it is necessary to properly diagnose. This rule works in relation to all diseases, but is especially important in relation to severe and deadly conditions associated with disturbances in the work of the heart and blood vessels.
The diagnostic method based on the Doppler effect is advanced and highly accurate. It allows already at an early stage (before the onset of symptoms of the disease), to identify such ailments and their stage:
- disruption of the movement of the blood flow through the vessels in osteochondrosis;
- pre-stroke condition;
- head vessel embolism.
Who should not do a UZGD?
There are no contraindications, including age restrictions, for this diagnostic method. During the examination, no X-rays are used and no drugs are injected.
Unfortunately, such a procedure cannot be performed for those patients who, due to injury or other conditions, cannot assume a horizontal position. But this factor is not decisive. If it is extremely necessary for a patient who cannot lie, to examine the vessels of the neck and head, then it can still be prescribed.
How to prepare for Doppler?
For carrying out USDG of vessels of the neck and head, the patient does not require prior preparation. But if a person takes any medications that affect the activity of the vascular system, then he should inform the neuropathologist about this. It may be necessary to stop their reception for a while.
On the day when the survey will be conducted, you should not drink coffee, energy and other beverages that affect vascular tone. Also stop smoking.
"Will it hurt me?", Or what patients are embarrassed to ask the doctor?
Not all diagnostic procedures are painless. Therefore, some patients are worried before entering the room where the USDG will be held. To save them from unnecessary fear and fear, it is enough to explain exactly how the examination will take place.
The procedure for ultrasound diagnosis of vessels of the head and neck lasts no more than 40 minutes. The man has been lying down all this time. On the scalp (in certain places) pre-applied special gel. This is necessary to remove the air between the sensor and the skin. After the procedure, to remove the gel, just wash your hair.
During the procedure, the specialist will install several sensors on the head and on the neck. To remove some indicators, the doctor will ask the patient to breathe deeply or press the vessels with his hands. This is necessary for the so-called load test.
USDG - a procedure that significantly eased the lives of doctors and gave hope for recovery to many patients. The only disadvantage is that the devices for such an examination are not available in every medical institution. In addition, in order to properly decipher data obtained by duplex scanning or USDG, a highly qualified professional is needed.