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Abstract #2853

Quantitative susceptibility mapping with discrete wavelet transform at 7T & 3T MRI

Young Joong Yang1,2, Jong-Hyun Yoon1, Jinho Park1, Hyeon-Man Baek2, and Chang-Beom Ahn1

1Kwangwoon University, Seoul, Korea, Republic of, 2Korea Basic Science Institute, Ochang, Korea, Republic of

A tissue characterization with susceptibility e.g., susceptibility weighted imaging (SWI), quantitative susceptibility mapping (QSM), susceptibility tensor imaging (STI), gets more attention in high field MRI. Using a numerical phantom, various processing elements for QSM are analyzed. We propose a method to remove background phase using a discrete wavelet transform (DWT). The proposed DWT method shows superb performances over exiting techniques including SHARP in the QSM experiments with volunteer subjects at 7.0T and 3.0T MRI, without distortions at the susceptibility maps.

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