Which lesions should be scored?
Each coronary lesion with a Diameter Stenosis ≥50% in vessels ≥1.5 mm must be scored. Each lesion can involve ≥1 diseased segments.
If serial stenoses are less than 3 vessel reference diameters apart, they should be scored as one lesion. However, stenoses at a greater distance from each other (more than 3 vessel reference diameters), are considered as separate lesions.
* ≥3 vessel reference diameters.
This case should be described as two lesions:
* <3 vessel reference diameters.
This case should be described as one lesion:
If serial stenoses are less than 3 vessel reference diameters apart, they should be scored as one lesion. However, stenoses at a greater distance from each other (more than 3 vessel reference diameters), are considered as separate lesions.
* ≥3 vessel reference diameters.
This case should be described as two lesions:
- one lesion involving segments 5, 6, and 11 and
- one lesion involving segment 6.
* <3 vessel reference diameters.
This case should be described as one lesion:
- one lesion involving segments 5, 6, and 11.
