Plethysmography Impedance

Impedance plethysmography is a method for studying blood circulation, which is based on measuring the impedance (resistance) of tissues. This method allows you to assess the condition of the vessels and blood flow in them.

Impedance plethysmography is performed using special equipment, which consists of an impedance sensor and electrodes that are applied to the patient's skin. An impedance sensor measures tissue resistance, which changes depending on the volume of blood in the vessels.

During the examination, the patient sits or lies on a table, and the doctor takes measurements of tissue resistance in different parts of the body. Typically measurements are taken on the arm, leg or head. The measurement results are displayed on the computer screen in the form of graphs and tables.

Impedance plethysmography allows you to assess the condition of blood vessels, identify circulatory disorders and determine the causes of these disorders. It can also be used to diagnose diseases of the cardiovascular system, such as atherosclerosis, hypertension and others.

IMPEDANCE PLETHYSMOGRAPHY

Plethysmography is a method of recording the blood flow of tissues that have arteries by measuring air pressure in hollow organs. The first method, which makes it possible to directly record changes in the volume and blood supply of organs, was proposed by the Scottish physician D. Brown at the end of the 19th century, and its name is described in the report of the English physician G. Bailey at the general meeting of the British Medical Society in 1894. The method he developed is based on on the sequential use of circulatory and respiratory devices and the use of two pressure gauges filled with normal and intravenous air. Comparative entry