Abstract #3575

An in vivo investigation on quantitative metrics of diffusion kurtosis tensor: the effect of diffusion gradient parameters in the clinical setting

Kuan-Hung Cho¹, Richard Buschbeck², Shih-Yen Lin^1,3, Ezequiel Farrher², Ming-Jye Chen¹, Chia-Wen Chiang¹, N. Jon Shah^2,4,5,6, Chang-Hoon Choi², and Li-Wei Kuo^1,7

¹Institute of Biomedical Engineering and Nanomedicine, National Health Research Institutes, Miaoli County, Taiwan, ²Institute of Neuroscience and Medicine 4, INM-4, Forschungszentrum Jülich, Jülich, Germany, ³Department of Computer Science, National Chiao Tung University, Hsinchu, Taiwan, ⁴Institute of Neuroscience and Medicine 11, INM-11, JARA, Forschungszentrum Jülich, Jülich, Germany, ⁵JARA - BRAIN - Translational Medicine, Aachen, Germany, ⁶Department of Neurology, RWTH Aachen University, Aachen, Germany, ⁷Institute of Medical Device and Imaging, National Taiwan University College of Medicine, Taipei, Taiwan

Diffusion kurtosis imaging (DKI) is an emerging technique that provides additional information to delineate tissue microstructures by quantifying the non-Gaussian water molecular diffusion. Although the capability of DKI has been demonstrated, the effects of diffusion gradient parameters on its quantitative metrics, particularly in the clinical setting, have not been fully understood yet. This study aims to investigate the effect of diffusion gradient parameters on diffusion kurtosis tensor calculation and its quantitative metrics. In vivo results show that diffusion gradient duration has incremental influence on DKI quantitative metrics in the clinical setting. Further investigation with more subjects would help to statistically solidify our findings.

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