Abstract #4922

Improvement of Reproducibility in Quantitative Susceptibility Mapping (QSM) and Transverse Relaxation Rates (R2*) after Physiological Noise Correction

Joon Yul Choi¹, Jingu Lee¹, Yoonho Nam², Woojin Jung¹, Jongho Lee¹, and Se-Hong Oh³

¹Department of Electrical and Computer Engineering, Seoul National University, Seoul, Korea, Republic of, ²Department of Radiology, Seoul Saint Mary's Hospital, Seoul, Korea, Republic of, ³Division of Biomedical Engineering, Hankuk University of Foreign Studies, Yongin, Korea, Republic of

Respiration-induced local magnetic field variation makes artifacts in gradient echo based images and reduces reproducibility of QSM and R₂*. This study investigated reproducibility after respiration-induced error correction. The results showed a significantly improved reproducibility in QSM and R₂* mapping.

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