List Diagnostics – M
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.
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.
The most common indication for MRI of kidneys is the diagnosis and staging of tumors. Nevertheless, CT for the same purpose is prescribed much more often.
MRI examines the state of brain structures according to their shape, size and tissue density. It should be taken into account that MRI reflects the density of tissues depending on the water content in them, and therefore, first of all, such lesions as swelling-swelling of the brain (ONGM), demyelinating diseases, tumors are revealed.
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.
Magnetic resonance angiography (MP-angiography), in contrast to spiral CT, conventional and digital subtraction angiography, allows visualization of blood vessels even without the use of contrast media. The study can be carried out in 2D or 3D modes.