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The part of the body being imaged must lie at the center of the magnet, which is at the absolute center of the tunnel. Because scan times on these older scanners may be long (occasionally up to 40 minutes for the entire procedure), people with even mild claustrophobia are sometimes unable to tolerate an MRI scan without management.
MRI does not involve X-rays or the use of ionizing radiation, which distinguishes it from computed tomography (CT) and positron emission tomography (PET) scans. MRI is a medical application of nuclear magnetic resonance (NMR) which can also be used for imaging in other NMR applications, such as NMR spectroscopy. [1]
However, it may throw off MRI results so talk to your doctor before eating it if you have an MRI scheduled soon, advises the National Institutes of Health. There's also not enough evidence to say ...
Doctors are warning patients not to wear spandex clothing when coming in for a magnetic resonance imaging (MRI) procedure. Fabrics that use spandex often have metallic threads that could react ...
Currently, routine clinical follow-up and MRI neuroimaging surveillance is the standard by which patients are observed. [4] While treatment of MS disease modifying therapies have been given to some individuals with RIS, the majority opt for active surveillance and the appearance of clinical symptoms before commencing treatment, [5] as treatment is considered controversial.
An MRI instead of a surgical procedure helped speed up the wait between diagnosis and treatment, UK research has found MRI scan could fast-track patients for bladder cancer treatment, study finds ...
Modic changes are a non-specific pathoanatomical marker observed on an MRI scan. For example, high blood pressure or high body temperature can be markers of several diseases. In 2008 the first hypothesis suggesting three possible pathogenetic reasons for Modic changes was published, a bacterial, a mechanical, and a rheumatological cause.
Ghosting is a multidimensional artifact that occurs in the MRI in the phase-encoded direction (short axis of the image) after applying the Fourier transform. When the phase of the magnetic resonance signal is being encoded into the 2D or 3D Fourier image, a mild deviation from the actual phase and amplitude may occur.