Keywords dilated cardiomyopathy;cell transplantation;matrix remodeling;matrix metalloproteinase;heart failure;positron emission tomography;angiogenesis;myogenesis;

• 扩张型心肌病;细胞移植;间质重塑;基质金属蛋白酶;心力衰竭;正电子发射断层扫描;血管新生;心肌再生;