64 year old man with history of atrial fibrillation, thickened inter-atrial septum seen on echo, referred for cardiac MRI for further evaluation. Left VentricleThe left ventricle is normal in size with normal systolic function. The overall LV ejection fraction is 57%, the LV end diastolic volume index is 62 ml/m2 (normal range: 74+/-15), the LVEDV is 139 ml (normal range 142+/-34), the LV end systolic volume index is 27 ml/m2 (normal range 25+/-9), the LVESV is 59 ml (normal range 47+/-19), the LV mass index is 56 g/m2 (normal range 85+/-15), and the LV mass is 124 g (normal range 164+/-36). There are no regional wall motion abnormalities present. There is no late gadolinium enhancement to suggest the presence of an underlying fibrosing, infiltrative, or inflammatory process. Right VentricleThe right ventricle is normal in size with normal systolic function. The overall RV ejection fraction is 50%, the RV end diastolic volume index is 65 ml/m2 (normal range 82+/-16), the RVEDV is 145 ml (normal range 142+/-31), the RV end systolic volume index is 32 ml/m2 (normal range 31+/-9), and the RVESV is 72 ml (normal range 54+/-17).Left AtriumThe left atrium is mildly dilated. Right AtriumThe right atrium is moderately dilated.Interatrial SeptumThe interatrial septum is thickened from lipomatous hypertrophy. No evidence of cardiac mass. No evidence of atrial septal defect. No evidence of cardiac shunt (Qp/Qs = 1.07).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 with a normal brachiocephalic branching pattern. The aortic root is normal in size. Thoracic aorta is normal. 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 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. The interatrial septum is thickened because of lipomatous hypertrophy. No evidence of mass. No evidence of atrial septal defect or other cardiac shunt. 2. The left ventricle is normal in size with normal systolic function. The overall LV ejection fraction is 57% without evidence of underlying myocardial fibrosis, inflammation, or infiltration. .3. The right ventricle is normal in size with normal systolic function. The overall RV ejection fraction is 50%.I personally reviewed the Images and/or procedure with the Resident/Fellow and agree with this report.