Change in UIA morphology measurements in growing and nongrowing UIAsa
| Change in | Growing | Nongrowing | P Value |
|---|---|---|---|
| Volume (mm3) | 21.92 (4.8−33.23)b | 1.42 (−4.26−9.76)b | .01b |
| Area (mm2) | 28.09 (−4.23−35.37)b | 2.07 (−6.47−9.89)b | <.01b |
| Compactness 1 | 0.40 (−1.35−3.85)b | 0.00 (−1.65−2.33)c | .21 |
| Compactness 2 | 0.01 (−0.03−0.11) | 0.01 (−0.04−0.06) | .22 |
| Elongation | −0.02 (−0.05−0.02) | 0.02 (−0.03−0.04) | .42 |
| Flatness | 0.01 (−0.04−0.04) | 0.00 (−0.03−0.04) | .37 |
| Sphericity | 0.01 (−0.02−0.05) | 0.01 (−0.02−0.03) | .20 |
| Shape index | 0.00 (−0.13−0.00) | 0.00 (−0.03−0.01) | .06 |
| Curvedness | −0.14 (−0.37−0.01)b | −0.01 (−0.16−0.09)b | .03b |
↵a Comparing change in 3D quantified morphology of stable and growing UIAs. Values are written as median (IQR). Growth was defined as an increase of at least 1 mm in either width or length of the UIA. P values refer to the relation between parameters of the growing and stable UIAs using a t test or Mann-Whitney U test.
↵b P values are statistically significant.
↵c x 103.