Association between signs of vessel wall inflammation and incident stenoses or dilations
| Total segments | Stenoses or dilations n | % | Accuracy for stenosis or dilations | Sensitivity (95% CI) | Specificity (95% CI) | PPV (95% CI) | NPV (95% CI) | |
| PET score=0 | 140 | 0 | 0.0 | |||||
| PET score=1 | 128 | 4 | 3.1 | PET score≥1 | 100% (65% to 100%) | 48% (42% to 54%) | 4% (2% to 9%) | 100% (97.9% to 100%) |
| PET score=2 | 14 | 2 | 14.3 | PET score≥2 | 43% (10% to 82%) | 90% (86% to 94%) | 10% (2% to 26%) | 98.5% (96.2% to 99.6%) |
| PET score=3 | 17 | 1 | 5.9 | PET score≥3 | 14% (0% to 58%) | 95% (91% to 97%) | 6% (0% to 19%) | 97.9% (95.4% to 99.2%) |
| Total | 299 | 7 | 2.3 | |||||
| Without thickening | 227 | 5 | 2.2 | |||||
| With thickening | 72 | 2 | 2.8 | Wall thickening | 29% (4% to 71%) | 76% (71% to 81%) | 3% (0% to 10%) | 97.8% (94.9% to 99.3%) |
| Total | 299 | 7 | 2.3 |
Associations between PET score and wall thickening with incident stenoses or dilations at subsequent morphological imaging.
NPV, negative predictive value; PET, positron emission tomography; PPV, positive predictive value.