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Abstract #1226

Fat-signal fraction quantification of paravertebral muscle using T2*-corrected multi-echo Dixon technique

Yeon Hwa Yoo 1 , Yaena Kim 1 , Young Han Lee 2 , Mun Young Paek 3 , Sungjun Kim 1 , Tae-Sub Chung 1 , Choon-Sik Yoon 1 , Ho-Taek Song 2 , and Jin-Suck Suh 2

1 Radiology, Gangnam Severance Hospital, Yonsei University College of Medicine., Seoul, Korea, 2 Radiology, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea, 3 Siemens Ltd. Seoul, Seoul, Korea

Fat-signal fraction has been quantified for phantom and variable tissues using variable sequences based on Dixon techniques. Recently, fat-signal fraction mapping using multi-echo Dixon techniques have been developed for further improvement of accuracy. However, there has been no consensus whether T2*-corrected multi-echo Dixon technique can more accurately measure fat-signal fraction in skeletal muscle as compared with the 2-echo and 3-echo techniques particularly when T2*-correction is added, albeit being expected so. This study is the first one that T2*-corrected multi-echo Dixon technique is superior to the sequences previously tested for the purpose.

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