Figure 4.

(a-d) CMR SSFP still frame. In the panel a is shown a two-chamber longitudinal plane, showing on the inferior-posterior aspect of the heart, the IPS filled with EAT (yellow dotted line). The two dotted lines in panel b refer to the two short axis planes shown in panel c and d respectively. Panel c shows a short axis plane with the IPS bordered by the right and left atrial walls, while the panel d shows a lower short axis plane where the IPS is bordered by the right atrial wall and by the crest of interventricular septum (see text). Panel (e) is an anatomic specimen displayed in similar fashion as the image on panel a. The IPS is located between the two dotted lines. Within it there are the CS, the MCV and a coronary artery (short arrow). RA = Right atrium, LA = Left atrium, LV = Left ventricle, Ao = Aorta, AVJ = Atrioventricular junction, MCV = Middle cardiac vein, CS = Coronary sinus, EAT = Epicardial adipose tissue, CMR SSFP = Cardiac magnetic resonance steady-state free precession, IPS = Inferior pyramidal space