Abstract #4481

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

Noriyuki Tawara^1,2, 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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