From: Clinical and imaging characteristics of cardiac magnetic resonance presenting with myocardial infarction with non-obstructive coronary arteries in China
Grade 0
Grade I
Grad II
Grade III
Grade IV
Segments with normal perfusion
233
1
0
Segments with reduced perfusion
22
19
7
2
Segments with perfusion defect
11
13
8
Total
255
41
21
10
9