This was an explorative study aimed to investigate the association between serum TGF-β1, the procollagen I carboxy-terminal propeptide (PICP), and the procollagen III amino-terminal propeptide (PIIINP) with myocardial fibrosis assessed by T1 mapping and LGE imaging on CMR. This evidence concerns the gene TGFB1 and Myocardial fibrosis.