Abstract #3179
Quantitative Susceptibility Mapping with a Combination of Different Regularization Parameters
Ryota Sato 1 , Toru Shirai 1 , Yo Taniguchi 1 , Takenori Murase 2 , Yoshihisa Soutome 1,2 , Yoshitaka Bito 2 , and Hisaaki Ochi 1
1
Central Research Laboratory, Hitachi, Ltd.,
Kokubunji, Tokyo, Japan,
2
Hitachi
Medical Corporation, Chiba, Japan
To achieve a susceptibility map with high accuracy and
high precision, a method is proposed for QSM with a
combination of different regularization parameters. In
the proposed method, k-space was divided into three
domains and susceptibility maps calculated by different
regularization parameters are applied to each domain. A
numerical simulation based on a COSMOS reconstructed
susceptibility map was used to compare both the accuracy
and the precision of susceptibility maps calculated by
conventional and proposed methods. The results suggest
that the accuracy and the precision of the proposed
method are comparable to or higher than those of the
conventional methods.
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