36 year old man with history of hypertrophic cardiomyopathy and associated gene mutation, referred for cardiac MRI to evaluate function and obtain cardiac dimensions as part of a research trial. Left VentricleThe left ventricle is normal in size with normal systolic function. The overall LV ejection fraction is 63%, the LV end diastolic volume index is 60 ml/m2 (normal range: 74+/-15), the LVEDV is 121 ml (normal range 142+/-34), the LV end systolic volume index is 22 ml/m2 (normal range 25+/-9), the LVESV is 44 ml (normal range 47+/-19), the LV mass index is 59 g/m2 (normal range 85+/-15), and the LV mass is 120 g (normal range 164+/-36). There are no regional wall motion abnormalities present. There is mild asymmetric hypertrophy of the septum (maximum thickness 13-14mm). Technical issues with administration of gadolinium preclude evaluation for late gadolinium enhancement; the patient will be brought back for repeat imaging.Left AtriumThe left atrium is mildly dilated. Right VentricleThe right ventricle is normal in size with normal systolic function. The overall RV ejection fraction is 49%, the RV end diastolic volume index is 61 ml/m2 (normal range 82+/-16), the RVEDV is 121 ml (normal range 142+/-31), the RV end systolic volume index is 31 ml/m2 (normal range 31+/-9), and the RVESV is 63 ml (normal range 54+/-17).Right AtriumThe right atrium is moderately dilated.Aortic ValveThe aortic valve opens widely and there is no significant aortic regurgitation.Mitral ValveThe mitral valve opens widely and there is trace 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.AortaThe aortic root is normal in size.Pulmonary VeinsAll four pulmonary veins drain normally into the left atrium.Venous AnatomyThe SVC and IVC are normal in size and drain normally into the right atrium.PericardiumThere is no obvious pericardial disease.Extracardiac Findings This study is not designed for the specific evaluation of extra-cardiac findings; therefore, the differentiation between artifacts and real extracardiac pathology may be difficult. If clinically indicated, a separate dedicated evaluation should be considered.
1. Normal sized LV with normal systolic function (EF=63%). Mild asymmetric septal hypertrophy consistent with the patient's diagnosis of hypertrophic cardiomyopathy.2. Normal sized RV with normal systolic function (EF=49%).3. Mild LA dilation and moderate RA dilation.4. Unable to assess for late gadolinium enhancement on this series of images due to inadequate administration of contrast. 