Table 2.
Accuracy of POCUS in detecting active disease compared to ileocolonoscopy
| Ileocolonoscopy | POCUS | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Sensitivity (%) | Specificity (%) | PPV (%) | NPV (%) | Kappa coefficient | ||||||
| <30 days | Same‐day | <30 days | Same‐day | <30 days | Same‐day | <30 days | Same‐day | <30 days | Same‐day | |
| UC (Mayo ≥ 1) | 92 (73–99) | 100 (77–100) | 86 (57–98) | 100 (54–100) | 92 (73–99) | 100 (77–100) | 86 (57–98) | 100 (54–100) | 0.77 (89%) | 1 (100%) |
| UC (Mayo > 1) | 94 (72–100) | 100 (66–100) | 85 (57–98) | 100 (54–100) | 89 (67–99) | 100 (66–100) | 92 (64–100) | 100 (54–100) | 0.80 (90%) | 1 (100%) |
| CD | 90 (67–99) | 91 (59–100) | 81 (54–96) | 83 (35–100) | 85 (62–97) | 91 (59–100) | 87 (60–98) | 83 (36–100) | 0.71 (86%) | 0.74 (88%) |
| Overall | 91 (78–97) | 96 (80–100) | 83 (65–94) | 92 (62–100) | 89 (75–96) | 96 (80–100) | 86 (68–96) | 92 (62–100) | 0.74 (88%) | 0.87 (95%) |
CD, Crohn's disease; NPV, negative predictive value; POCUS, point‐of‐care gastrointestinal ultrasound; PPV, positive predictive value; UC, ulcerative colitis.