Mean in-vivo CT Hounsfield density, SD, and 95% confidence interval for each histologic component*
| Histologic Component | Mean (HU) | SD (HU) | 95% Confidence Interval (HU) | |
|---|---|---|---|---|
| Lipid-rich necrotic core | 32.6 | 20.0 | −7.4 | 72.5 |
| Connective tissue | 46.4 | 19.9 | 6.6 | 86.2 |
| Hemorrhage | 97.5 | 22.0 | 53.5 | 141.6 |
| Calcifications | 256.7 | 30.2 | 216.3 | 297.1 |
Note:—HU indicates Hounsfield units.
* Determined by comparison of each 2 × 2-mm square electronically drawn on the in vivo CT reformatted images with corresponding histologic and micro-CT squares.