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Health

List Diagnostics – D

A B C D E F G H I K L M N O P R S T U V W X
Duplex scanning (gray-scale echography with color Doppler coding and spectral Doppler analysis, applied to the intracranial part of the cerebral vasculature - transcranial duplex scanning) currently serves as the main method for diagnosing various types of pathology of the cerebral vascular system.
Until recently, it was very common to study the biliary tract with duodenal probing, which is the introduction of a probe into the duodenum to obtain its contents.
The main goal of the study of cerebral vessels with the use of color duplex sonography is to determine and quantify the degree of stenosis caused by atherosclerotic changes in patients with complaints and transient ischemic attack or stroke in the anamnesis. The study should establish the degree of stenosis and the extent of the affected segment of the vessel.
Diagnosis of peripheral arterial diseases of the extremities is based on a clinical examination involving Ratcshow or Allen samples, pulse estimation, walking time and measurement of the ankle-brachial index (LIP). Based on the results of these studies, indications for a color duplex sonography of the arteries of the limb are determined.
In recent years, dopplerography has become one of the leading methods of research in obstetrics. The essence of the Doppler effect is as follows. Ultrasonic vibrations generated by piezoelements with a given frequency propagate in the object under study in the form of elastic waves.
What is the new diagnostic method - digital x-ray? In fact, this is our usual X-ray examination with a digitally processed image.

Diffusion is the main physical process that occurs during metabolic reactions of the cell. The first diffusion-weighted MP image was built in 1985. In clinical practice, diffusion MRI came with the MRI scanners of the generation III. To obtain diffusion-weighted tomograms, echoplane pulse sequences "spin echo" EPI with two diffusion gradients of the same amplitude and duration are used.

Diagnostic scraping of the walls of the uterine cavity is an instrumental removal of the functional layer of the uterine lining of the uterus along with pathological formations that can originate from it. D

Pain in the abdomen, quite diverse in duration and nature, are localized most often in the upper half of the abdomen, mainly in the epigastric region or the left hypochondrium, radiating into the back. 

Among diseases of the liver and bile ducts, chronic diffuse lesions of the liver - chronic hepatitis and cirrhosis of the liver, as well as cholecystitis (stone and non-calcified) and cholangitis, are of the greatest clinical importance.

The endocrine system includes endocrine glands that secrete the corresponding hormones into the blood. These glands include the pituitary gland, the thyroid gland, the parathyroid glands, the islet apparatus of the pancreas, the adrenal glands, including the cortical and medulla, the testes, the ovaries, the epiphyses, the thymus gland (thymus).

Identifying hearing loss and deafness in an adult is easy enough. Most of the methods used by them are based on the respondent's answers to the sounds of certain tones and frequencies, as well as speech, delivered by the tuning fork or through the headphones. The curve derived from these subjective responses characterizes the state of the auditory function.

The method of therapeutic hemosorption is based on the fixation of chemical compounds on nonselective carbon sorbents of natural or synthetic origin, which is determined by the forces of the van der Waals molecular coupling, the strength of which is due to the formation of covalent bonds between the toxicant and the sorbent.
To study visual acuity, special tables are used. Containing different sizes of optotypes (letters, numbers, signs).
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