CT coronary angiogram axial - labeling questions

Case contributed by Dr Craig Hacking
Annotated image

Normal CT coronary angiogram (with labels)

The labeled structures are (excluding the correct side):

  1. ascending aorta
  2. pulmonary trunk
  3. superior vena cava
  4. left atrial appendage
  5. right pulmonary artery
  6. left superior pulmonary vein
  7. descending aorta
  8. internal thoracic (mammary) artery
  9. right superior pulmonary vein
  10. conus artery
  11. proximal segment of the left anterior descending (LAD) artery
  12. right ventricle
  13. left (main) coronary artery (LCA/LMCA)
  14. right atrial appendage
  15. mid segment of the left anterior descending (LAD) artery
  16. (small) first diagonal artery (D1)
  17. (small) ramus intermedius artery (RI)
  18. first septal artery (S1)
  19. left coronary sinus of the aortic valve
  20. second diagonal artery (D2)
  21. right coronary sinus of the aortic valve
  22. proximal segment of the circumflex artery (LCx)
  23. proximal segment of the right coronary artery (RCA)
  24. second septal artery (S2)
  25. (small) first obtuse marginal artery (M1)
  26. posterior (non coronary) coronary sinus of the aortic valve
  27. left inferior pulmonary vein
  28. sinoatrial nodal artery
  29. aortic valve
  30. right atrium
  31. left ventricular outflow tract
  32. right ventricle
  33. interatrial septum
  34. right inferior pulmonary vein
  35. second obtuse marginal artery (M2)
  36. first acute marginal artery (AM1)
  37. left atrium
  38. distal segment of the left anterior descending (LAD) artery
  39. chordae tendineae of the mitral valve
  40. anterior papillary muscle of the left ventricle
  41. anterior leaflet of the mitral valve
  42. distal segment of the circumflex artery (LCx)
  43. mid segment of the right coronary artery (RCA)
  44. posterior leaflet of the mitral valve
  45. left ventricle
  46. interventricular septum
  47. coronary sinus
  48. posterior papillary muscle of the left ventricle
  49. (small) second acute marginal artery (AM2)
  50. distal segment of the right coronary artery (RCA)
  51. posterior descending artery (PDA)
  52. posterior left ventricular artery (PLV)
  53. inferior vena cava
  54. esophagus
  55. posterior descending artery (PDA)
CT

Normal CT coronary angiogram (without labels)

The same normal CT coronary angiogram without labels for reference.

Case Discussion

The labeled structures are (excluding the correct side):

  1. ascending aorta
  2. pulmonary trunk
  3. superior vena cava
  4. left atrial appendage
  5. right pulmonary artery
  6. left superior pulmonary vein
  7. descending aorta
  8. internal thoracic (mammary) artery
  9. right superior pulmonary vein
  10. conus artery
  11. proximal segment of the left anterior descending (LAD) artery
  12. right ventricle
  13. left (main) coronary artery (LCA/LMCA)
  14. right atrial appendage
  15. mid segment of the left anterior descending (LAD) artery
  16. (small) first diagonal artery (D1)
  17. (small) ramus intermedius artery (RI)
  18. first septal artery (S1)
  19. left coronary sinus of the aortic valve
  20. second diagonal artery (D2)
  21. right coronary sinus of the aortic valve
  22. proximal segment of the circumflex artery (LCx)
  23. proximal segment of the right coronary artery (RCA)
  24. second septal artery (S2)
  25. (small) first obtuse marginal artery (M1)
  26. posterior (non coronary) coronary sinus of the aortic valve
  27. left inferior pulmonary vein
  28. sinoatrial nodal artery
  29. aortic valve
  30. right atrium
  31. left ventricular outflow tract
  32. right ventricle
  33. interatrial septum
  34. right inferior pulmonary vein
  35. second obtuse marginal artery (M2)
  36. first acute marginal artery (AM1)
  37. left atrium
  38. distal segment of the left anterior descending (LAD) artery
  39. chordae tendineae of the mitral valve
  40. anterior papillary muscle of the left ventricle
  41. anterior leaflet of the mitral valve
  42. distal segment of the circumflex artery (LCx)
  43. mid segment of the right coronary artery (RCA)
  44. posterior leaflet of the mitral valve
  45. left ventricle
  46. interventricular septum
  47. coronary sinus
  48. posterior papillary muscle of the left ventricle
  49. (small) second acute marginal artery (AM2)
  50. distal segment of the right coronary artery (RCA)
  51. posterior descending artery (PDA)
  52. posterior left ventricular artery (PLV)
  53. inferior vena cava
  54. esophagus
  55. posterior descending artery (PDA)
PlayAdd to Share

Case information

rID: 63155
Published: 18th Sep 2018
Last edited: 14th Aug 2019
System: Vascular, Cardiac
Inclusion in quiz mode: Included

Updating… Please wait.

 Unable to process the form. Check for errors and try again.

 Thank you for updating your details.