Left ventricle of the maternal heart 9 years after pregnancy
收藏资源简介：
Anatomy of the left ventricle LV of 153 mothers 5-10 years after pregnancy, with and without a history of hypertension<b></b><i></i><sub></sub><sup></sup><br>The LV end diastolic anatomy was reconstructed from the contours using high order interpolation meshes as described in our previous work. The 153 meshes were then spatially aligned by their centre of mass, and by an orientation defined by their basal plane and the left to right direction set by the centre of mass of the LV and right ventricle. A statistical shape model was then built with a principal component analysis (PCA), finding the modes of anatomical variation of this cohort. <br>Data shared containts:<b>1. AtlasMeshData.zip</b>, where each case has 1.1 binary.vtk: The mask of the left ventricular (LV) myocardium and right ventricular blood pool from the short axis magnetic resonance image in end diastole1.2 binary_mesh files (.exelem and .exnode): the cubic Hermite mesh that was personalised to the anatomy of the left ventricle1.3 Image_binary_mesh.jpg: image of the overlay between the fitted mesh and the mask of the LV myocardium1.4 Image_Initialization.jpg: image of the overlay between the template LV mesh used for personalization and the mask of the LV myocardium1.5 ImageDistances2ClosestPointbinary_meshxxxxxxxxxx.jpg: image of the distances between the LV mesh and the mask of the LV myocardium (xxxxxxxxxx is a digit encodign for the time when the image was generated)1.6 PersonalizationReportbinary.txt: file with metrics of mesh fitting accuracy and quality<b></b><i></i><sub></sub><sup></sup><b></b><br><b>2. VTKMeshes.zip</b>: the collection of all the LV shapes in VTK format, after correction of centre of mass and circumferential orientation. <br><b>3</b><b>. AtlasModesPVSn43_rvspace_s4_c3.pdf</b>: illustration of all the 10 first modes of anatomical variation, together with the box-plot of the differences between hypertensive pregnancy (blue) and normotensive pregnancy (green).<b></b><br><b>4. Mode6revealsDifferences.png</b>: screen capture of mode 6 from last file, revealing the largest differences between the groups of hypertensive and normotensive pregnancy.<br><br>
本数据集涵盖153名妊娠后5至10年女性的左心室（left ventricle, LV）解剖结构数据，研究对象包含有高血压病史者与无高血压病史者。 本研究采用高阶插值网格，基于受试者舒张末期左心室轮廓重建其解剖形态，相关重建方法已在本团队既往研究中详细阐述。随后，以153个网格的质心为基准，并结合由左心室与右心室质心定义的基底面方位、左右方向，完成所有网格的空间对齐。进而通过主成分分析（Principal Component Analysis, PCA）构建统计形状模型，提取该队列的解剖变异模式。 本次共享的数据包含以下内容： 1. AtlasMeshData.zip：每个病例包含如下文件： 1.1 binary.vtk：舒张末期短轴磁共振图像对应的左心室心肌与右心室血池掩码文件 1.2 binary_mesh格式文件（.exelem与.exnode）：针对该受试者左心室解剖定制的三次Hermite网格 1.3 Image_binary_mesh.jpg：拟合网格与左心室心肌掩码的叠加可视化图像 1.4 Image_Initialization.jpg：用于网格定制的标准化左心室模板网格与左心室心肌掩码的叠加可视化图像 1.5 ImageDistances2ClosestPointbinary_meshxxxxxxxxxx.jpg：左心室网格与左心室心肌掩码间的距离映射图像（xxxxxxxxxx为图像生成时间的数字编码） 1.6 PersonalizationReportbinary.txt：包含网格拟合精度与质量评估指标的分析报告文本文件 2. VTKMeshes.zip：经质心与周向方位校正后的全部左心室形状集合，文件格式为VTK格式 3. AtlasModesPVSn43_rvspace_s4_c3.pdf：包含前10种解剖变异模式的可视化图谱，同时附带高血压妊娠组（蓝色）与正常妊娠组（绿色）的组间差异箱线图 4. Mode6revealsDifferences.png：上述PDF文件中第6种变异模式的截图，该模式可清晰展现两组研究对象间的最大解剖差异
