MAGNETIC RESONANCE IMAGING
-Magnetic resonance imaging (MRI), or Nuclear magnetic resonance imaging (NMRI), is primarily a medical imaging technique most commonly used in radiology to visualize the structure and function of the body. It provides detailed images of the body in any plane. MRI provides much greater contrast between the different soft tissues of the body than computed tomography (CT) does, making it especially useful in neurological (brain), musculoskeletal, cardiovascular, and oncological (cancer) imaging. Unlike CT, it uses no ionizing radiation, but uses a powerful magnetic field to align the nuclear magnetization of (usually) hydrogen atoms in water in the body. Radiofrequency fields are used to systematically alter the alignment of this magnetization, causing the hydrogen nuclei to produce a rotating magnetic field detectable by the scanner. This signal can be manipulated by additional magnetic fields to build up enough information to construct an image of the body. MRI is a relatively new technology, which has been in use for little more than 30 years (compared with over 110 years for X-ray radiography). The first MR Image was published in 1973 and the first study performed on a human took place on July 3, 1977. Magnetic resonance imaging was developed from knowledge gained in the study of nuclear magnetic resonance. In its early years the technique was referred to as nuclear magnetic resonance imaging (NMRI). However, as the word nuclear was associated in the public mind with …
very educational thank you!!!
this has helped me a lot with understanding the process of MRI. thank you
i’m having an MRI on jan. 08 and i’m super anxious. i feel more relaxed now.
so have I, Laura. good luck, I hope everything will be fine
very nice!!!!
great! it’s very informative and the content is just what I want to know
Been in an MRI twice… it’s pretty relaxed, you can listen to musik with special headphones… but the sounds the MRI makes are are really annoying ^^
most mri scanners look like a big doughnut lol
very interesting video, i think the process is pretty amazing!
@wheeper not if your head is getting scanned…that’s a pain
Total bullshit… just in case you have a headache anyways
Why do MRI’s have to be so NOISY/?? It’s enough having neighbors like that!
@Marmalade000000 Because inside it this giant ring spins fast as hell. Basically if it weren’t covered and you popped your head up you would not have one
I got over my terror of MRI machines watching the entire series of House M.D. I still haven’t actually had to be in one, but I no longer hyperventilate at the sight… lol.