Data for: MACHINE LEARNING IN MEDICINE: CLASSIFICATION AND PREDICTION OF DEMENTIA BY SUPPORT VECTOR MACHINES (SVM)

This set consists of a longitudinal collection of 150 subjects aged 60 to 96. Each subject was scanned on two or more visits, separated by at least one year for a total of 373 imaging sessions. For each subject, 3 or 4 individual T1-weighted MRI scans obtained in single scan sessions are included. The subjects are all right-handed and include both men and women. 72 of the subjects were characterized as nondemented throughout the study. 64 of the included subjects were characterized as demented at the time of their initial visits and remained so for subsequent scans, including 51 individuals with mild to moderate Alzheimer’s disease. Another 14 subjects were characterized as nondemented at the time of their initial visit and were subsequently characterized as demented at a later visit.本数据集为一项纵向研究队列，共纳入150名年龄介于60至96岁之间的受试者。每位受试者均接受过至少两次扫描随访，两次随访间隔至少为1年，整体累计完成373次成像扫描会话。每位受试者的单次扫描会话中均包含3至4幅独立的T1加权磁共振成像（T1-weighted MRI）扫描结果。所有受试者均为右利手，且涵盖男性与女性群体。其中72名受试者在整个研究周期内均被评定为无痴呆状态。纳入的受试者中，有64名在首次随访时即被评定为痴呆，并在后续扫描中持续保持该状态，其中51名患有轻度至中度阿尔茨海默病（Alzheimer’s disease）。另有14名受试者在首次随访时被评定为无痴呆状态，但在后续随访中被确诊为痴呆。