PVR test (Pulse Volume Recording) is a modern imaging technique that is used to detect pathological changes in large vessels before the onset of clinical manifestations or in the early stages of diseases. If you are asked what a PVR test is aimed at, then it is used to diagnose vascular diseases, which are manifested by impaired coronary and cerebral blood flow. Using the PVR effect allows the cardiologist to calculate the blood flow velocity and determine its violation in individual vessels. Most often, these data are sufficient for the doctor to make an accurate diagnosis.
What is a PVR test: features and advantages
PVR test is a method for studying vascular tone and blood flow in small-caliber vessels, based on the graphical recording of pulse and slower volume fluctuations of any part of the body associated with the dynamics of vascular blood filling. Three main advantages of PVR test for legs are:
- affordable cost;
- absence of contraindications;
- high information content.
As a special technique, the so-called general plethysmography, or whole body plethysmography, is used to study the functions of external respiration and the minute volume of blood circulation. As a diagnostic method, Pulse Volume Recording is used mainly in vascular diseases for an objective assessment of the state and degree of disorders of regional blood flow, tonus of arteries and veins, for differential diagnosis of organic and functional vascular diseases, as well as for monitoring the effectiveness of treatment used to restore vascular function.
What is a PVR test indication?
PVR ultrasonography of the vessels of the brain and other organs is advisable as a diagnostic tool for routine preventive examinations, when the likelihood of serious problems is low. In patients with osteochondrosis, PVR tests of the vessels of the head and neck reveal the effect of the disease on the circulatory system. This procedure is also beneficial in the following cases:
- varicose veins;
- obliterating atherosclerosis and endarteritis;
- deep vein thrombosis.
Since Pulse Volume Recording is more informative than other methods for diagnosis, it is effective for clarifying the diagnosis. This study is recommended for everyone over the age of 40 on a regular basis, and the majority of patients are increasingly taking advantage of this opportunity.
Why are PVR tests so important?
In the prevention of such a dangerous disorder as a stroke, Pulse Volume Recording plays an important role. It is prescribed for:
- headaches or dizziness of unknown origin;
- planning of surgical intervention in the cardiovascular system;
- examination of people at risk of cerebrovascular accident;
- signs of possible stroke.
PVR test for legs, as well as scanning the veins, gives the specialist a detailed picture of the state of the vessels. It not only reflects the presence of blood flow disorders, but also explains their cause, be it vascular anomalies, the consequences of trauma, atherosclerotic changes, or others. Most often, they turn to professional clinics in the direction of a phlebologist to scan the veins of the lower extremities. If you have ever noticed in yourself: swollen legs in the evening, change in skin color, appearance of veins, numbness and muscle pain when walking or chilly legs, then find out what is a PVR test! This method of testing will clarify the nature of your condition, which means it will help to start corrective therapy on time.
