脑梗死是一种常见的临床病症,具有很高的致残率和病死率,它的防治一直是全世界研究的热门,近年来,通过移植干细胞治疗脑梗死已经取得令人振奋的成果。但是干细胞修复中枢神经系统损伤的机制仍在探索之中,MRI成像技术提供了较好的研究手段。1干细胞的研究背景干细胞是一群具有高度自我更新能力和多向分化潜能的 Cerebral infarction is a common clinical condition with high morbidity and mortality. Its prevention and treatment has been a hot topic all over the world. In recent years, it has achieved encouraging results in treating cerebral infarction by transplanting stem cells. However, the mechanisms by which stem cells repair central nervous system injuries are still under investigation. MRI imaging technology provides a good research method. Stem Cell Research Background Stem cells are a group of cells that have a high degree of self-renewal and multidrug differentiation potential