CT scan

Understand the ct scan procedure: when it is recommended, how it is done, safety, and how results are reported.

Computed tomography of the spine: how it is performed and what it shows

A CT scan of the spine is a modern, cross-sectional examination of the human body. It relies on computerized measurement and processing of the difference in X-ray attenuation between tissues of varying density.

Mammography: examination options

Mammography, as a diagnostic method, is currently the most informative and convenient.

Dental tomography: 3D diagnostics

Dental tomography is a relatively new diagnostic method. However, in a short time, it has gained widespread trust and popularity.

MRCP: MR diagnostics of the bile and pancreatic ducts

A highly effective non-invasive method for diagnosing biliary tract diseases is magnetic resonance cholangiopancreatography (MRCP), which allows for obtaining high-contrast images of the bile ducts and pancreatic ducts.

Prostate MRI: Examination Standards

Prostate MRI has been used since the mid-1980s, but the information content and accuracy of this method were limited for a long time due to the technical imperfection of MRI scanners and the insufficient development of the examination methodology.

CT scan of the prostate: capabilities of the method

One of the most important advantages of prostate CT is the relatively low operator dependence of the method: the results of an examination performed using a standard method can be reviewed and interpreted by different specialists without the need for a repeat examination.

MR spectroscopy: tissue metabolites and diagnostics

Magnetic resonance spectroscopy (MRI) provides noninvasive information about brain metabolism. Proton 1H MRI is based on the "chemical shift"—a change in the resonant frequency of protons found in various chemical compounds. This term was coined by N. Ramsey in 1951 to describe the differences between the frequencies of individual spectral peaks.

Functional MRI: How Brain Activity Is Assessed

Functional MRI is based on increased blood flow in the brain in response to increased neuronal activity in the cortex when exposed to a relevant stimulus. Mapping brain activity allows us to identify areas of neuronal activation that arise in response to stimulation (motor, sensory, and other stimuli).

PET: positron emission tomography

Positron emission tomography (PET) is a method for studying the metabolic and functional activity of body tissues during life. The method is based on the phenomenon of positron emission, which is observed in a radiopharmaceutical administered to the body as it distributes and accumulates in various organs. In neurology, the primary application of this method is the study of brain metabolism in a number of diseases.

Perfusion studies: brain and organ blood flow

Perfusion studies are used to examine and quantify blood flow. Modern quantitative methods for studying cerebral hemodynamics include MRI, contrast-enhanced spiral CT, xenon CT, single-photon emission CT, and positron emission tomography (PET).

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