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The Pros And Cons Of Magnetic Resonance Imaging

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Based on Westbrook et al. (2011), Magnetic Resonance Imaging (MRI) is the imaging modalities that has excellent soft tissue manipulation of the images compared to others. To detect pathologies within the body on MRI images, there must display contrast between normal anatomical characteristics and between anatomy and abnormality (Westbrook et al., 2011). In this assignment will get a look deeper into the image contrast of MRI. One of the contents are the effect of TR and TE parameters on the gray scale image, the advantages and disadvantages of varying the TR and TE on the resultant image and on the total scan time. Moreover, the description of flip angle effect, TR and TE on gradient echo imaging and the advantage of obtaining images at several
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MRI stands for magnetic resonance imaging. The MRI scan allows doctors to see soft tissues in the body such as organs and muscles without the bones hindering the view. In the pelvis scan, the MRI allows he doctor to see the bones and the blood vessels and some other soft tissues in the area between your hips where the reproductive organs are held and numerous critical muscles; pelvis. MRI is considered a safe way for screening because it does not use radiation unlike other methods of screening.

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There are also huge risks that some people may also have to take when getting a MRI. If you are wearing any metal objects or have any metal implants in your body the magnetic fields produced by the scanner will detect and then attract them at great force. Although they are usually safe for pregnant women there are still some risks because the MRI scan can cause the body to heat up. As a safety measure most doctors will advise that you do not have a MRI scan in the first 3 months of your pregnancy unless it is considered critical. There is also an extremely rare risk of an allergic reaction occurring only about 1 in 10,000 people given gadolinium, however there is still the possibility.

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In the 1980s there were 12 MRI machines in the world and the men and women who used them knew each other. Now there are over 25,000 MR systems worldwide and operated by thousands. However, in Europe there are on average 11 Magnetic Resonance systems per 1 million people, while only 0.5 systems per million people in India which are densely distributed around wealthier cities, leaving poorer areas lacking in medical imaging facilities. [1] The negatives surrounding these imaging deficiencies have inspired several scientists around the world to develop new methods and equipment that can become more accessible to the masses. Huge amounts time of research is going into developing new technologies that can be substituted for, or even replace these

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