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Abstract #4481

Accuracy evaluation of pulse sequences using inversion recovery pulse for T1 measurement.

Noriyuki Tawara1,2, Kanokvalee Ponkanist2, Shuichi Shiratori2, Anchali Krisanachinda2, and Toru Yamamoto1

1Faculty of Health Sciences, Hokkaido University, Sapporo, Japan, 2Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand

It has been reported that T1 in skeletal muscles is proportional to the percentage of typeⅠfibers which would be a determinant for athletic performance. However, the precision of the measured T1 values is unclear due to various pulse sequences used for the measurement. In this study, we evaluated the reliability of T1 measured by pulse sequences with inversion recovery technique that is believed to be most accurate in T1 measurement. A value of goodness of fitting was employed for the quantitative evaluation of the obtained data. The influence of SNR on the T1 measurement was also examined.

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