40 year old male with nonischemic cardiomyopathy referred for cardiovascular MRI to evaluate for etiology of LV dysfunction. Left VentricleThe left ventricle is severely dilated with severely reduced systolic function. There is global hypokinesis with septal akinesis. The overall LV ejection fraction is 19%, the LV end diastolic volume index is 172 ml/m2 (normal range: 74+/-15), the LVEDV is 310 ml (normal range 142+/-34), the LV end systolic volume index is 169 ml/m2 (normal range 25+/-9), the LVESV is 251 ml (normal range 47+/-19), the LV mass index is 89 g/m2 (normal range 85+/-15), and the LV mass is 161 g (normal range 164+/-36). Mid septal enhancement. No evidence of infarct. There is no evidence of thrombus in the LV.Left AtriumThe left atrium is mildly enlarged. No evidence of atrial or atrial appendage thrombus.Right VentricleThe right ventricle is normal in size with mildly reduced systolic function. The overall RV ejection fraction is 41%, the RV end diastolic volume index is 92 ml/m2 (normal range 82+/-16), the RVEDV is 165 ml (normal range 142+/-31), the RV end systolic volume index is 54 ml/m2 (normal range 31+/-9), and the RVESV is 97 ml (normal range 54+/-17).Right AtriumThe right atrium is normal in size.Aortic ValveThe aortic valve opens widely and there is no significant aortic regurgitation.Mitral ValveThe mitral valve opens widely and there is no significant mitral regurgitation.Pulmonic ValveThe pulmonic valve opens widely. There is no significant pulmonic regurgitation.Tricuspid ValveThe tricuspid valve opens widely. There is no significant tricuspid regurgitation.AortaThere is a left sided aortic arch. The thoracic aorta is normal in size.Pulmonary VeinsAll four pulmonary veins drain normally into the left atrium.Pulmonary ArteryThe main pulmonary artery is normal in size.Venous AnatomyThe SVC and IVC are normal in size and drain normally into the right atrium.PericardiumThere is no obvious pericardial disease.Extracardiac FindingsThere are no significant extracardiac findings.
1. Severely dilated left ventricle with severely reduced systolic function (LVEF 19%)2. There is a region of mid-myocardial late gadolinium enhancement in the basal inferior septum. In the setting of a severely dilated left ventricle this is consistent with a diagnosis of dilated cardiomyopathy.3. Normal right ventricular size with mildly reduced systolic function (RVEF 41%).