Microscopic resolution diffusion magnetic resonance images of a normal adult Sprague Dawley rat brain

Anatomical reference volume of a normal adult male Sprague Dawley rat brain, consisting of high resolution, contrast enhanced, structural magnetic resonance images (sMRI; 39 μm isotropic voxels) and diffusion tensor images (DTI, 78 μm isotropic voxels). Version 1.01 features a standardized orientation of the volumetric datasets according to NIfTI-1 format defaults, allowing users to read Waxholm Space coordinates directly from the data volume using publicly available software (e.g. ITK-SNAP and MBAT). For details, see “Release notes v1.01”. This dataset is hosted on [NITRC.org](https://www.nitrc.org/frs/?group_id=1081) and includes: * [T2*-weighted gradient echo image](https://www.nitrc.org/frs/download.php/9423/WHS_SD_rat_T2star_v1.01.nii.gz) at 39 μm original resolution (1024x512x512 voxels) * [Apparent Diffusion Coefficient (ADC) map](https://www.nitrc.org/frs/download.php/9430/WHS_SD_rat_ADC_v1.01.nii.gz) resampled to 39 μm resolution (1024x512x512 voxels) * [DTI b0 image](https://www.nitrc.org/frs/download.php/9431/WHS_SD_rat_DTI_512_v1.01.zip) resampled to 39 μm resolution (1024x512x512 voxels) * [Diffusion weighted image map](https://www.nitrc.org/frs/download.php/9429/WHS_SD_rat_DWI_v1.01.nii.gz) resampled to 39 μm resolution (1024x512x512 voxels) * [Fractional Anisotropy (FA) map](https://www.nitrc.org/frs/download.php/9428/WHS_SD_rat_FA_v1.01.nii.gz) resampled to 39 μm resolution (1024x512x512 voxels) * [Color FA map](https://www.nitrc.org/frs/download.php/9424/WHS_SD_rat_FA_color_v1.01.nii.gz) resampled to 39 μm resolution (1024x512x512 voxels), combining the FA and primary eigenvector to 24-bit color RGB where intensity is given by relative FA value and color is assigned to directions (RGB to xyz respectively) **How to cite:** Please cite these anatomical reference volumes by referring to the Waxholm Space atlas of the Sprague Dawley rat brain RRID: SCR_017124, and cite the publications (see Related publications below).

本数据集为正常成年雄性Sprague Dawley大鼠脑的解剖参考容积，由高分辨率对比增强结构磁共振成像（structural magnetic resonance images, sMRI；体素各向同性分辨率为39μm）与扩散张量成像（diffusion tensor images, DTI；体素各向同性分辨率为78μm）组成。v1.01版的容积数据集已按照NIfTI-1格式默认标准进行标准化定向，用户可通过公开软件（如ITK-SNAP与MBAT）直接从数据容积中读取Waxholm空间坐标。详细信息请参阅"v1.01版发布说明"。本数据集托管于[NITRC.org](https://www.nitrc.org/frs/?group_id=1081)，包含以下内容：
* [T2*加权梯度回波图像](https://www.nitrc.org/frs/download.php/9423/WHS_SD_rat_T2star_v1.01.nii.gz)，原始分辨率为39μm（体素尺寸1024×512×512）
* [表观扩散系数（Apparent Diffusion Coefficient, ADC）图](https://www.nitrc.org/frs/download.php/9430/WHS_SD_rat_ADC_v1.01.nii.gz)，已重采样至39μm分辨率（体素尺寸1024×512×512）
* [扩散张量成像（Diffusion Tensor Imaging, DTI）b0图像](https://www.nitrc.org/frs/download.php/9431/WHS_SD_rat_DTI_512_v1.01.zip)，已重采样至39μm分辨率（体素尺寸1024×512×512）
* [扩散加权成像（Diffusion Weighted Imaging, DWI）图](https://www.nitrc.org/frs/download.php/9429/WHS_SD_rat_DWI_v1.01.nii.gz)，已重采样至39μm分辨率（体素尺寸1024×512×512）
* [各向异性分数（Fractional Anisotropy, FA）图](https://www.nitrc.org/frs/download.php/9428/WHS_SD_rat_FA_v1.01.nii.gz)，已重采样至39μm分辨率（体素尺寸1024×512×512）
* [彩色各向异性分数图](https://www.nitrc.org/frs/download.php/9424/WHS_SD_rat_FA_color_v1.01.nii.gz)，已重采样至39μm分辨率（体素尺寸1024×512×512），该图像将各向异性分数与主特征向量融合为24位RGB彩色图像：图像强度由相对各向异性分数值决定，颜色则对应不同方向（RGB分别对应xyz轴方向）
**引用方式：** 请通过引用《Sprague Dawley大鼠脑Waxholm空间图谱》（RRID: SCR_017124）来引用本解剖参考数据集，并同时引用相关出版物（详见下文"相关出版物"板块）。