From: Association between wall metrics and identification of lipid-rich necrotic core in the early-stage atherosclerosis using magnetic resonance imaging
NWI
Number
Proportion
P value (comparing to the 4th quartile)
1st quartile (<= 0.36)
24
0/24 (0%)
< 0.0001
2nd quartile (0.37–0.39)
23
2/23 (8.7%)
0.0001
3rd quartile (0.40–0.45)
32
9/32 (28.1%)
0.007
4th quartile (> 0.45)
18/27 (66.7%)
-