Table 2.
The CLE feature group ranked according to their importance as determined using LASSO on the segmental method.
| # | Group | Feature | Statistic | # | Group | Feature | Statistic |
|---|---|---|---|---|---|---|---|
| 1 | Calcification | Angle | Mean | 11 | Calcification | Thick | Median |
| 2 | Lumen | Area | Mean | 12 | Calcification | Depth | Mean |
| 3 | Lumen | % AS | Median | 13 | Calcification | Thick | SD |
| 4 | Lumen | % AS | Mean | 14 | Lumen | Volume | – |
| 5 | Calcification | Area | Mean | 15 | Calcification | Depth | Median |
| 6 | Calcification | Angle | SD | 16 | Calcification | Thick | Mean |
| 7 | Lumen | % AS | SD | 17 | Calcification | Angle | Median |
| 8 | Calcification | % | – | 18 | Calcification | Area | Median |
| 9 | Calcification | Area | SD | 19 | Calcification | Volume | – |
| 10 | Lumen | Area | SD | 20 | Calcification | Depth | SD |
The calcification angle, calcification area, lumen area, and percentage area stenosis (%AS) had the greatest impact on stent expansion. Calcification percentage (feature 8) is the percentage of frames with calcifications.