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MRI Gradient Coils

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Researcher wrote in the second paragraph of the abstract, “Human research magnets of 7T and 8T are operation in several site worldwide.” However, it is quite disturbing why these types of magnets were mentioned in the abstract but nothing in the research paper discussed these things. Said sentence therefore appears to be irrelevant. Thus, the researcher must either discuss these types of magnets in the body of the paper or better yet, totally delete the above-quoted sentence.In addition, the author mentioned in the introduction that he/she will elaborate on the different gradient types and designs thereof. However, perusal of the body of the research paper would show that only the three (3) main ingredients, to wit, z, y and x, were discussed as part of the MR system.In the last paragraph of the summary, the author stated, “the distinct advantages over normal radiographs and CT examinations, is that it does without the delivery of ionizing radiation to the patient”. I respect the author’s view; however, I cannot agree on this as MRI gives precise contrast differences between soft tissues that significantly help in diagnosing abnormalities than other normal radiographs and CT examinations.I respectfully recommend that the researcher e-write the abstract and avoid putting much information therein as the abstract serves as a skeleton of the whole paper only. Thus, there is no need to elaborate or discuss things in this part of the paper. Instead, the details should be written in the body of the paper or discussion.The introduction is relatively short as compared with the abstract. No pictures or diagrams were provided in the research paper. These things are very important in order to simplify the meaning of the contents of the paper or give an overview of what were written in the paragraphs.It is also necessary to highlight clear definitions of the slew rate, its effects on gradients’ performance and its units. It must be borne in mind that slew rate of the gradients determine how fast the gradients can be switched on and off. The gradients’ strength is calculated thru the variations that are created in the field strength over a specific distance of the coil, and it must be directly proportional to the amount of current provided by the coil itself. Gradients with strength of 2.0 mT/m/A and 100-200 T/s are used in clinical MRI system.Further, the researcher failed to write in the performance section about the shimming
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preview essay on MRI Gradient Coils
  • Pages: 4 (1000 words)
  • Document Type: Essay
  • Subject: Physics
  • Level: Undergraduate
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