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MRI

Science
by

Jyoti Sharma

on 14 January 2013

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Transcript of MRI

Magnetic Resonance Imaging MRI History The MRI machine was first created during the year of 1946 by Felix Bloch and Edward Purcell. Up until the 1970s, MRI was being used for chemical and physical analysis. From then, more scientists became engaged with MRI and further developments were made. How do they Work? The machine uses powerful magnets and radio waves to produce detailed images of the body. The magnet in the MRI machine produces a strong magnetic field that interacts with the hydrogen atoms from the water in our body. A combination of the magnetic field and different radio frequencies make it possible for specialized computer to generate an image. What is MRI? Magnetic Resonance Imaging is a medical imaging technique used in radiology to visualize internal structures of the body in detail. Why are they used? They are used to diagnose forms of cancer, brain diseases, and cardiovascular conditions by generating images of the structure and function of the brain, heart, liver, soft tissues and the inside of the bones. How has it affect us? Helps spot and distinguish diseased tissues (tumors, and other lesions) early in their development. Unlike other technology, the MRI is a noninvasive test which means no surgery is done, no instruments are inserted into your body and doesn't use ionizing radiation or carry any risk of causing cancer, which makes it more easier, convenient and opened to everyone. How it affects society today The MRI has an impact on our society today by giving medical professionals an advantage in diagnosing and treating diseases in the earlier stages. Without such tests as the MRI, many lives may be lost that have otherwise been saved. How it affected society from an economic perspective? The MRI helped the medical business because it was made to be used by any patient. An open MRI machine is open on all sides, which allows the patients to be less confined while testing occurs. As well, open MRI allows easier testing for people who are disabled or who are overly anxious. Advantages: - The MRI can characterize and discriminate among tissues using their physical and biochemical properties (water, iron, fat, etc.) Disadvantages: -An MRI scan can cause patients to remain motionless for up to an hour Our opinions based on MRI We believe that the MRI is an important medical imaging technology in the medical field today. By producing images of the internal structures, it has helped find different diseases in the early stages. It has helped save several patients and has had a big impact on our lives. Without the MRI, we may not have been able to save as many lives as we have today. Lastly, we are grateful to have such advanced technology that is helping save lives all around the world. - Does not use ionizing radiation - Noninvasive - Produces detailed images of the internal structures of the body - Helps distinguish diseased tissues early in their development - Does not cause discomfort or harm to the patient -Can be very noisy -Imaging can be affected by movement -In some cases, your head may need to be inside the MRI scanner tube, which may feel claustrophobic for some people THE END By: Jyoti Sharma
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Jody Fuchigami Magnetic Resonance Imaging
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