This study focused on imaging-based risk factors for DCM but it is well-recognised that additional non-imaging-based characteristics are likely to be important including underlying aetiology, family history, symptoms, presence of malignant ventricular arrhythmias and blood biomarkers (e.g., NT-proBNP) (5, 6, 25). The gene discussed is NPPB; the disease is familial dilated cardiomyopathy.