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Abstract #1441

Fast fitting method for simultaneously quantifying multiple MR parameters using local optimization method with predetermined initial values

Suguru Yokosawa1, Yo Taniguchi1, Tomoki Amemiya1, Toru Shirai1, Ryota Sato1, Yoshihisa Soutome1, and Hisaaki Ochi1

1Research & Development Group, Hitachi, Ltd., Tokyo, Japan

A fast fitting method for quantifying multiple MR parameters using local optimization method with predetermined initial values is proposed. In the proposed method, an optimal neighborhood solution is extracted as predetermined initial values. A difference in MR parameters between the proposed method and the conventional method was less than 5 %. On the other hand, a computing time of the proposed method was approximately 15 times faster compared with the conventional method. We concluded that the proposed method can provide fast fitting process while maintaining calculation accuracy.

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