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  2. Magnetic resonance angiography - Wikipedia

    en.wikipedia.org/wiki/Magnetic_resonance_angiography

    Magnetic resonance angiography (MRA) is a group of techniques based on magnetic resonance imaging (MRI) to image blood vessels. Magnetic resonance angiography is used to generate images of arteries (and less commonly veins) in order to evaluate them for stenosis (abnormal narrowing), occlusions, aneurysms (vessel wall dilatations, at risk of rupture) or other abnormalities.

  3. Safety of magnetic resonance imaging - Wikipedia

    en.wikipedia.org/wiki/Safety_of_magnetic...

    MRI and computed tomography (CT) are complementary imaging technologies and each has advantages and limitations for particular applications. CT is more widely used than MRI in OECD countries with a mean of 132 vs. 46 exams per 1000 population performed respectively. [58]

  4. Magnetic resonance imaging - Wikipedia

    en.wikipedia.org/wiki/Magnetic_resonance_imaging

    MRI has a wide range of applications in medical diagnosis and around 50,000 scanners are estimated to be in use worldwide. [25] MRI affects diagnosis and treatment in many specialties although the effect on improved health outcomes is disputed in certain cases. [26] [27] Radiologist interpreting MRI images of head and neck

  5. Magnetic resonance neurography - Wikipedia

    en.wikipedia.org/wiki/Magnetic_resonance_neurography

    Magnetic resonance neurography. Magnetic resonance neurography (MRN) is the direct imaging of nerves in the body by optimizing selectivity for unique MRI water properties of nerves. It is a modification of magnetic resonance imaging. This technique yields a detailed image of a nerve from the resonance signal that arises from in the nerve itself ...

  6. MRI pulse sequence - Wikipedia

    en.wikipedia.org/wiki/MRI_pulse_sequence

    An MRI pulse sequence in magnetic resonance imaging (MRI) is a particular setting of pulse sequences and pulsed field gradients, resulting in a particular image appearance. [ 1 ] A multiparametric MRI is a combination of two or more sequences, and/or including other specialized MRI configurations such as spectroscopy .

  7. Spinal stenosis - Wikipedia

    en.wikipedia.org/wiki/Spinal_stenosis

    Up to 8% of people [4] Spinal stenosis is an abnormal narrowing of the spinal canal or neural foramen that results in pressure on the spinal cord or nerve roots. [6] Symptoms may include pain, numbness, or weakness in the arms or legs. [1] Symptoms are typically gradual in onset and improve with leaning forward. [1]

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