1 — Coronary sinus; 2 — Left ventricle; 3 — Left atrium; 4 — Pulmonary veins; 5 — Left pulmonary artery; 6 — Subclavian artery; 7 — Common carotid artery; 8 — Brachiocephalic trunk; 9 — Arch of aorta; Aortic arch; 10 — Superior vena cava; 11 — Right pulmonary artery; 12 — Right atrium; 13 — Inferior vena cava; 14 — Apex of heart; 15 — Right ventricle; 16 — Posterior interventricular sulcus