1. When appointed?
3. How to prepare?
Rheography - non-invasive diagnostic method, which explores how the bloodstream throughout the body as a whole or in specific tissues and organs.The essence of the study is in the graphic registration authority conductivity changes provoked pulse fluctuations of blood flow.
fact that blood has the highest conductivity among all structures of the human body.This means that during a heart contraction (systole) and relaxation (diastole) in each organ varies the amount of blood, which in turn alters its ability to conduct an electric current.Fluctuations in the electrical resistance of fixed special apparatus (rheography) in the form of a complex curve - rheogram.
Features of this diagnosis determines which it is planned to examine the body.However, all types of rheography principle the same - are attached to the investigated area electrodes, which are then connected to the device.Some electrodes are recording element,
Rheography assigned to diagnose vascular disease (inflammatory and atherosclerotic lesions).By attaching electrodes on portions major vascular beds of different tissues and organs of the patient, the doctor can register rheogram light (reopulmonogramma), extremities (reovazogramma or peripheral rheogram), heart (rheocardiogram), brain (reoentsefalogramma), and others. As a result rheogram expert can judge the state ofblood circulation in the vessels of the region, which is under investigation.
indication for rheography are:
In gastroenterology rheography used to determine the blood supply to the liver, in cardiology with the help define the function of the heart.Pulmonologists through chest rheography evaluate the state of pulmonary blood flow.
To measure the impedance of the base or permanent use this technique as an integral rheography.And it can be done either throughout the body or in any particular portion thereof.To study this indicator by integral rheography use multiple electrodes fixation zones, for example at the bottom of the left leg and right forearm, etc.
contraindications to this procedure is not, as it is completely non-invasive and safe for humans.
study was carried out through a half or two hours after a meal.It is also recommended for 1-3 days before the rheography stop taking all medications, if possible.This is especially true of drugs that can affect the dynamics of the blood supply vessels.In addition, the patient must advance to exclude from your diet certain foods, which include caffeine and stop smoking.The procedure is performed in a sitting or lying position.Before the study, the patient should be possible to relax.
To reduce the contact resistance and improve the accuracy of diagnosis applied to the electrodes special paste, which improves the flow of current, and the field electrodes in the skin fixation ether or an alcohol wipe.Registration rheographic curves are usually carried out on incomplete exhalation when breath-hold.