Magnetic Resonance Imaging

Magnetic Resonance Imaging In 1944, the Isidor Isaac Rabbit resonance method for its nuclear magnetic recording was awarded the Nobel Prize in Physics. This method is based on measuring the phenomenon known as the cardiac proton spin nucleus, nuclear magnetic moment. According to Paul C. Lauterbur and Peter Mansfield, he was able to study Rabbin's work, (known as nuclear magnetic resonance, NMR), magnetic resonance imaging, in 2003 he received the Nobel Prize in medicine.

Magnetic resonance imaging, also known as excellent magnetic resonance imaging (MRI), is an important medical diagnostic tool for studying the function and structure of the human body. It has been used to image cardiovascular, nerve, musculoskeletal and tumor, providing detailed images of any part of the body (especially soft tissue) in all possible planes. Unlike other options such as computed tomography (CT), it does not use ionizing radiation and therefore very safe administration

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MRI is a well-known application of magnetic resonance imaging for medical diagnosis and research environment with magnetic resonance microscope. But it is widely used in biochemical research, especially in NMR spectroscopy, eg proton NMR, carbon 13 NMR, phosphorus NMR and deuterium-31 NMR. Biochemical information can be obtained from living tissues (eg brain tumors) by being known as magnetic resonance spectroscopy or nuclear magnetic resonance chemical shift in vivo microscopy technology

A "nuclear magnetic resonance (NMR) imaging" scanner (not shown) is first attached to excited hydrogen nuclei in water molecules in known magnetic resonance imaging devices (MRI scanners) or biased power magnets and human tissue (ie, single protons) , Thereby generating a spatially encoded signal, which generates a detection of the body image. MRI machine with resonant frequency of hydrogen atoms of water molecules on transmitting radio frequency (RF) pulse. The RF antenna ("RF coil") transmits a pulse to the body area to be examined. The RF pulses, for the direction of the main magnetic field, cause them to change, absorbing protons. When the RF pulse turns off, the proton "relaxation" aligns with the back main magnet and radiates radio waves in the process. This radio frequency transmission from the hydrogen atom water, the image is detecting both completion

Magnetic resonance imaging (MRI) is a medical imaging technology used for radiation due to the internal structure of the detailed display body. Nuclear magnetic resonance characteristics of endosomal atoms MRI (NMR) imaging was used. This method is reliable because MRI evaluation of proton density changes. "Spot" may be due to changes in moisture content as the brain develops. Noninvasive analytical techniques are used to study brain tumors, stroke, epilepsy, the brain, Alzheimer's disease, metabolic changes in depression and other diseases 113 quantitative proton magnetic resonance spectroscopy MRS) has been done. . It has also been used to study the metabolism of other organs such as muscle