TABLE 3.
Accuracy of MDCT in Assessing In-Stent Restenosis by Stent Diameter
| Reader | Stent Size
|
||
|---|---|---|---|
| < 2.5 mm (n = 20) | 2.5–3.0 mm (n = 40) | > 3.0 mm (n = 15) | |
| Reader 1 | |||
| % assessable segmentsa | 45 | 58 | 62 |
| Sensitivity (%) | 50 (12–88) | 50 (12–88) | 100 |
| Specificity (%) | 80 (31–97) | 74 (52–88) | 57 (20–87) |
| Reader 2 | |||
| % assessable segmentsa | 45 | 53 | 46 |
| Sensitivity (%) | 25 (3–76) | 25 (3–76) | 100 |
| Specificity (%) | 80 (31–97) | 88 (65–97) | 40 (10–80) |
Note—Data in parentheses are 95% CI.
a
A chi-square test with 2 degrees of freedom was performed to evaluate the difference between assessable and nonassessable segments across stent diameter categories. A statistical difference in evaluability was not observed in either reader 1 (p = 0.590) or reader 2 (p = 0.838).