Data from: Data for evaluation of fast kurtosis imaging, b-value optimization and exploration of diffusion MRI contrast

Here we describe and provide diffusion magnetic resonance imaging (dMRI) data that was acquired in neural tissue and a physical phantom. Data acquired in biological tissue includes: fixed rat brain (acquired at 9.4T) and spinal cord (acquired at 16.4T) and in normal human brain (acquired at 3T). This data was recently used for evaluation of diffusion kurtosis imaging (DKI) contrasts and for comparison to diffusion tensor imaging (DTI) parameter contrast. The data has also been used to optimize b-values for ex vivo and in vivo fast kurtosis imaging. The remaining data was obtained in a physical phantom with three orthogonal fiber orientations (fresh asparagus stems) for exploration of the kurtosis fractional anisotropy. However, the data may have broader interest and, collectively, may form the basis for image contrast exploration and simulations based on a wide range of dMRI analysis strategies.

本文将介绍并公开采集自神经组织与体模的扩散磁共振成像（diffusion magnetic resonance imaging，dMRI）数据集。采集自生物组织的数据集包括：经固定处理的大鼠脑部（9.4T场强下采集）、脊髓（16.4T场强下采集）以及正常人类脑部（3T场强下采集）的成像数据。该数据集此前被用于扩散峰度成像（diffusion kurtosis imaging，DKI）对比度的评估，以及与扩散张量成像（diffusion tensor imaging，DTI）参数对比度的对比研究。本数据集还被用于优化离体与活体快速峰度成像的b值参数。剩余数据则采集自带有三种正交纤维取向的体模（新鲜芦笋茎），用于探索峰度各向异性分数相关内容。不过，该数据集具备更广泛的应用价值，整体而言可作为基于多种扩散磁共振成像分析策略开展图像对比度探索与模拟研究的基础。