Morphometric evaluation of neuroimaging as a prognostic factor of survival in patients with cerebral hemorrhage

The data constitute a hierarchically ordered system, where computed tomography (CT) images are nested within individuals: the units of study in level-1 are the images and units of study in level-2 are of individuals. There are 39 patients (13 women and 26 men) with a diagnosis of spontaneous intracerebral hemorrhage (ICH) and who were carried out a CT scan within the first 6 hours of initiating symptoms. Ages were in an interval between 48 and 87 years. Of the total patients, 11 died after the hemorrhage. The morphometrical measurements of each of the hemorrhage images obtained by CT are: area, perimeter, elliptical shape factor, maximum diameter and minimum diameter. The morphometrical variables were measured using the MADIP system (Rodríguez et al. 2001) and a transformation was applied to avoid the undue importance of disproportionate ranges caused by the different units of measure of some variables. (Rodríguez R, Alarcón TE, Sánchez L. (2001) MADIP: Morphometrical Analysis by Digital Image Processing, Proceedings of the IX Spanish Symposium on Pattern Recognition and Image Analysis, Spain I: 291-298)本数据集为层级化有序系统，计算机断层扫描（CT）图像嵌套于个体层面：第1级研究单元为CT图像，第2级研究单元为个体患者。共纳入39例确诊为自发性脑出血（spontaneous intracerebral hemorrhage, ICH）的患者，其中女性13例、男性26例，所有患者均在症状发作后6小时内接受了CT扫描。患者年龄介于48~87岁之间，其中11例患者在脑出血后死亡。针对每幅CT脑出血影像的形态计量学测量指标包括：面积、周长、椭圆形状因子、最大直径与最小直径。上述形态计量学变量通过MADIP系统（Rodríguez等，2001）完成测量，并进行了标准化变换，以消除因不同变量量纲差异导致的极差失衡，避免其被赋予不当权重。参考文献：Rodríguez R, Alarcón TE, Sánchez L. (2001) MADIP: 数字图像处理形态计量分析（Morphometrical Analysis by Digital Image Processing），载于《第9届西班牙模式识别与图像分析研讨会论文集》，西班牙，第I卷：291-298。