Comparison of the percentages of areas and thicknesses and overall plaque burden between MRI and histologya
| MRI | Histology | P | r | ICC (95% CI) | |
|---|---|---|---|---|---|
| Fibrous component area (%) | 81.86 ± 10.59 | 81.87 ± 11.59 | .997 | 0.901 | 0.898 (0.832–0.938) |
| Lipid core area (%) | 19.51 ± 10.76 | 19.86 ± 11.56 | .660 | 0.888 | 0.885 (0.804–0.934) |
| Calcification area (%) | 9.68 ± 5.21 | 8.83 ± 5.67 | .030 | 0.933 | 0.930 (0.745–0.982) |
| Fibrous cap thickness (%) | 31.10 ± 11.28 | 30.83 ± 8.51 | .890 | 0.438 | 0.421 (0.155–0.630) |
| Plaque burden area (%) | 65.18 ± 9.01 | 52.71 ± 14.58 | <.001 | 0.862 | 0.771 (0.640–0.858) |
Note:—r indicates the Pearson correlation coefficient.
↵a Results are expressed as mean ± SD with P values derived from a linear mixed-effects model.