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Abstract #2451

Myocardial T1 mapping with a Saturation Recovery method using composite RF pulse - preliminary study

Kosuke Morita 1,2 , Daisuke Utsunomiya 3 , Seitaro Oda 3 , Tomohiro Namimoto 2 , Masanori Komi 1 , Mika Kitajima 2 , Toshinori Hirai 2 , Masahiro Hashida 1 , and Yasuyuki Yamashita 2

1 Radiology, Kumamoto university hospital, Kumamoto, Kumamoto, Japan, 2 Diagnostic Radiology, Faculty of Life Sciences, Kumamoto university, Kumamoto, Kumamoto, Japan, 3 Diagnostic Imaging Analysis, Faculty of Life Sciences, Kumamoto university, Kumamoto, Japan

The purpose of our study was to optimize the myocardial T1 mapping technique using a composite RF pulse, which is widely available in clinical practice. We evaluated the effect of the composite RF pulse on T1 maps using Saturation Recovery method with composite RF pulse by phantom and human studies. We also evaluated T1 value of cardiac amyloidosis patients. Our experiments showed that a T1 mapping with SR method using composite RF pulse provides more accurate quantification of T1 values. It may facilitate the detection of even the smallest fibrosis with no contrast agent in cardiomyopathy patients.

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