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Abstract #2507

Shim Component Analysis for Dynamic Shimming of the Breast

Eunhae Joe1, Yoonho Nam1, Min-Oh Kim1, Dong-Hyun Kim1

1Electrical and Electronic Engineering, Yonsei University, Seoul, Korea, Republic of

Respiratory motion can induce fluctuation of magnetic field causing artifacts in magnetic resonance spectroscopy (MRS) and proton resonance frequency shift (PRFS) MR thermometry in the breast. It has been reported that the magnitude of respiratory-induced B0 shift in the breast is ten times greater than in the brain and varies in location. It is therefore important to determine the regional and temporal variation of B0 fluctuation during respiration. The aim of this study is to estimate and analyze the respiratory-induced temporal B0 fluctuation in different location of breast in a three dimensional volume.