Ultrasound Doppler ultrasonography and diseases it helps to diagnose

Ultrasound Doppler: the methodology principle

Doppler vascular dopplerography is a type of ultrasound examination, with the help of which the condition of arteries and veins is determined. The technique is based on the Doppler effect. It involves the passage of a wave from the probe in the direction of the vessels. During the passage through their walls, the frequency characteristics, wavelengths change, which are reflected and returned to the probe. The equipment registers the changes, forms a picture of blood flow based on speed and direction. Doppler study of vessels is used to diagnose:

• aneurysms;

• stenoses;

• blood clots;

• occlusions;

• kinks;

• malformations and other pathologies.

The examination allows you to identify disorders in the body. The method of examination is non-invasive, safe for the patient and highly informative. 

Dopplerography of head and neck vessels 

Dopplerography is an important study to assess the parameters of the functioning of the vessels of the head and neck. The examination is of great importance in the diagnosis of cardiovascular diseases, allowing their timely detection and prevention of their development. Vascular Dopplers help to determine:

• blood flow velocity, resistance index;

• symmetry in the same vessels on both sides;

• wall condition: elasticity, thickening;

• diameter;

• patency;

• presence of blood clots, plaques, tumors, pathological formations. 

The study of the vessels of the head and neck is important for diagnosing atherosclerosis, vasculitis, cervical osteochondrosis, thrombosis, hypoplasia of vertebral arteries, dissection, anatomical deformities, angiopathy. Ultrasound Dopplerography is able to prevent stroke, heart attack and other diseases.    

Dopplerography of cerebral vessels

During ultrasound Dopplerography, vessels are examined in a two-dimensional plane. This allows you to obtain data on the structure, structure, determine the speed, quality of blood flow. Full information about the state of blood circulation can be obtained in duplex mode of paired vessels. Ultrasound is prescribed with the following symptoms:

• headaches;

• dizziness caused by turning the head;

• stroke;

• transient ischemic attack;

• noise in the head;

• severe cervical osteochondrosis;

• numbness of hands, feet;

• arterial hypertension;

• speech impairment;

• elevated cholesterol;

• ischemic heart disease;

• cerebrovascular disease.

Transcranial Dopplerography allows you to measure the blood flow velocity of the large basal intracranial arteries in real time. During the examination, ultrasound pulses are directed at the vascular openings at the base of the skull. This method is especially important for hospitalized patients in critical condition, as well as the assessment of collateral circulation. 

Doppler ultrasound provides monitoring of cerebral vessels during neurosurgical interventions. Diagnosis helps to detect narrowing of arteries, dangerous spasms after subarachnoid hemorrhage. The technique is used to study mood disorders, abnormalities of the limbic system and severe depression.  

Conducting an examination

Dopplerography takes place in several stages. At the beginning, the doctor applies a special gel for ultrasound to the area of the study. It promotes good contact, better penetration of waves into the tissues. The specialist applies the ultrasound probe  to the skin and moves with the application of light pressure. During pressing, the device sends small pulses of high-frequency waves into the body, which provide a measurement of the direction and speed of movement of blood cells. Their movement causes a change in the height of the reflected sound vibrations (Doppler effect). The information obtained is collected, processed and displayed on a computer. Thanks to a special program, the data are presented in the form of color images, graphs in real time.    

Where to buy quality equipment for a medical institution

Ultrasound Dopplerography is the most informative and painless study of blood vessels condition. It is important to purchase reliable ultrasound equipment for effective examination of patients. BimedisMarketplace offers a wide selection of new and used devices from leading manufacturers. The platform is in demand all over the world due to favorable prices, user-friendly interface and customer focus. To get help or advice, you should contact managers.