| 2 |
Right Coronary Mid Segment |
From the origin of the first acute marginal branch to the origin of the second acute marginal branch |
1 |
0 |
| 3 |
Right Coronary Distal Segment |
In left dominant, the portion after the origin of the second acute marginal branch; in right dominant, from the origin of the second acute marginal branch to the origin of the posterior descending artery |
1 |
0 |
| 4 |
Posterior Descending Artery |
Exists only in right dominant |
1 |
Does not exist |
| 16 |
Right Left Ventricular Posterior Branch |
Portion after the posterior descending artery; exists only in right dominant |
0.5 |
Does not exist |
| 16a |
Right Left Ventricular Posterior Branch |
|
0.5 |
Does not exist |
| 16b |
Right Left Ventricular Posterior Branch |
|
0.5 |
Does not exist |
| 16c |
Right Left Ventricular Posterior Branch |
|
0.5 |
Does not exist |
| 5 |
Left Main |
|
5 |
6 |
| 6 |
Proximal Anterior Descending Artery |
From the opening of the anterior descending artery to the origin of the first diagonal branch |
3.5 |
3.5 |
| 7 |
Mid Anterior Descending Artery |
From the first diagonal branch to the origin of the second diagonal branch |
2.5 |
2.5 |
| 8 |
Distal Anterior Descending Artery |
Portion after the origin of the second diagonal branch |
1 |
1 |
| 9 |
First Diagonal Branch |
|
1 |
1 |
| 9a |
First Diagonal Branch Side Branch |
|
1 |
1 |
| 10 |
Second Diagonal Branch |
|
0.5 |
0.5 |
| 10a |
Second Diagonal Branch Side Branch |
|
0.5 |
0.5 |
| 11 |
Proximal Circumflex Artery |
From the opening of the circumflex artery to the origin of the second obtuse marginal branch |
0.5 |
2.5 |
| 12 |
Intermediate/Anterior Lateral Branch |
Originating from the left main root, located between the anterior descending artery and the circumflex artery |
1 |
1 |
| 12a |
First Obtuse Marginal Branch |
|
1 |
1 |
| 12b |
Second Obtuse Marginal Branch |
|
1 |
1 |
| 13 |
Distal Circumflex Artery |
From the second obtuse marginal branch to the origin of all left ventricular posterior branches |
0.5 |
1.5 |
| 14 |
Left Ventricular Posterolateral Branch |
Posterolateral branch originating from the circumflex artery |
0.5 |
1 |
| 14a |
Left Ventricular Posterolateral Branch |
|
0.5 |
1 |
| 14b |
Left Ventricular Posterolateral Branch |
|
0.5 |
1 |
| 15 |
Posterior Descending Artery |
Originating from the circumflex artery; exists only in left dominant |
Does not exist |
1 |
| 15a |
Posterior Descending Artery |
|
Does not exist |
1 |
| 15b |
Posterior Descending Artery |
|
Does not exist |
1 |
| 15c |
Posterior Descending Artery |
|
Does not exist |
1 |
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