Abstract #2045

Comparison Study between Quantitative Susceptibility Mapping and CT

Sonoko Oshima¹, Yasutaka Fushimi¹, Tomohisa Okada², Takuya Hinoda¹, Takayuki Yamamoto¹, Hikaru Fukutomi¹, Yusuke Yokota¹, Akira Yamamoto¹, Tsutomu Okada¹, and Kaori Togashi¹

¹Department of Diagnostic Radiology and Nuclear Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan, ²Human Brain Research Center, Graduate School of Medicine, Kyoto University, Kyoto, Japan

Quantitative susceptibility mapping (QSM) is a technique which can provide quantitative values of magnetic susceptibility. In this study, we compared magnetic susceptibility values with computed tomography (CT) numbers of brain structures and intracranial lesions in 30 subjects. QSM was able to differentiate between paramagnetic and diamagnetic substances. Susceptibility values showed positive correlations with CT numbers in globus pallidus and lesions with positive susceptibility, and negative correlations in choroid plexus and lesions with negative susceptibility.

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