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A patient is scanned by two separate magnetic resonance imaging machines. One is a conventional 1 Tesla device configured to image 1 H nuclei, while

A patient is scanned by two separate magnetic resonance imaging machines. One is a conventional 1 Tesla device configured to image 1H nuclei, while the other is a 5 Tesla research scanner which images 13C nuclei. Assuming that the number density of hydrogen nuclei relative to carbon nuclei in the body is 10 and the isotopic abundance of 13C is 1%, estimate the ratio between the MRI signal strengths obtained in the two scanners. The gyromagnetic ratios of 1H and 13C are 2.68times 108

rads/s/T and 6.72times 107

rads/s/T respectively.

 

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