Angiographic severity of proximal (non-ostial) stenoses affecting the upper thoracic intersegmental arteries

Levels	Left		Right
Levels	Mild/Moderate	Severe/Occlusions	Mild/Moderate	Severe/Occlusions
T3	3	1
T4	8	1	1
T5	7	3
T6	3	2
T7	1	1	2
T8	4