| Group | Mean (SD) | P |
|---|---|---|
| Stainless Steel | 1.62 (0.1) | — |
| Introducer Only | 2.52 (0.15) | <0.001 |
| Aluminum | 2.13 (0.08) | <0.001 |
| Titanium | 1.48 (0.08) | 0.023 |
| Brass | 1.75 (0.08) | 0.03 |
| Copper | 1.82 (0.14) | 0.017 |
| Carbon Fiber | 1.67 (0.05) | 0.304 |
| Nitinol | 2.17 (0.08) | <0.001 |
| Molybdenum | 1.34 (0.09) | <0.001 |
Change in introducer tip in Low-Z/CT artifact study
Statistical analysis
Changes in introducer tip are summarized by mean (SD; standard deviation) by group and visualized in a bar chart. Each group is compared with stainless steel by the two-sample t-test. Overall variations across the nine groups are tested by the ANOVA. All analyses were performed in R version 4.3.1 (R Foundation for Statistical Computing, Vienna, Austria).
Results
The following tabulates summary statistics of change (cm) by group, with each group compared with stainless steel by the \(t\)-test.
The bar char below shows the mean \(\pm\) SD of change by group.
