For some reason, we all sometimes have to undergo any diagnostic tests. Do not make exceptions and women during pregnancy, because they have to track not only their health status, but also the development of a future child.
CT of the spine is a modern layered study of the human body. It is based on the computer measurement and processing of the difference in attenuation of X-ray radiation by tissues of different density.
A highly effective non-invasive method in the diagnosis of biliary tract diseases is magnetic resonance cholangiopancreaticography (MRCP), which allows obtaining high-contrast images of bile ducts and pancreatic ducts.
MRI of the prostate has been used since the mid-80's. XX century. However, the informativeness and accuracy of this method have for a long time been limited due to the technical imperfection of MR scanners and the insufficiently developed method of examination.
One of the most important advantages of CT of the prostate is the relatively low operator-dependence of the method: the results of a survey performed according to a standard procedure can be reviewed and interpreted by different specialists without the need for a re-examination.
Magnetic resonance spectroscopy (MP-spectroscopy) allows noninvasive information about brain metabolism. Proton 1H-MR spectroscopy is based on a "chemical shift" - a change in the resonance frequency of protons that make up various chemical compounds. This term was introduced by N. Ramsey in 1951 to denote the differences between the frequencies of individual spectral peaks.
Functional MRI is based on increased blood flow in the brain in response to an increase in neuronal activity of the cortex under the action of the corresponding stimulus. Mapping of brain activity allows us to identify areas of neuronal activation that arise in response to stimulation (motor, sensory and other stimuli).
Positron emission tomography (PET) is a method of intravital study of the metabolic and functional activity of body tissues. The method is based on the phenomenon of positron emission, observed in the radiopharmaceutical introduced into the body with its distribution and accumulation in various organs. In neurology, the main point of application of the method is the study of the metabolism of the brain in a number of diseases.
