Pearson correlation calculation between window level, window width, and intraluminal Hounsfield unit values in NASCET classes*
| Pearson Correlation Variables | NASCET II-V (r) | NASCET II (r) | NASCET III (r) | NASCET IV (r) | NASCET V (r) |
|---|---|---|---|---|---|
| Window level−window width | 0.891 | 0.928 | 0.890 | 0.905 | 0.881 |
| IntraluminHU value−window level | 0.743 | 0.753 | 0.718 | 0.689 | 0.763 |
| IntraluminHU value−window width | 0.808 | 0.724 | 0.738 | 0.786 | 0.836 |
Note:—IntraluminHU indicates intraluminal Hounsfield unit.
* Correlation is significant at the 0.01 level (2-tailed).