Table 2. Characteristics of VCTE scans.
| VCTE characteristic | Sample size | Distribution† | Range |
|---|---|---|---|
| Probe | 109 | M: 91 (83) | – |
| XL: 18 (17) | – | ||
| # of Valid measurements/Subject | 109 | 13 [5] | 10–38 |
| Patients with unreliable VCTE studies‡ | 109 | 7 (6) | – |
| Median LSM in kPa | 109 | 10.7 [12.9] | 2.8–75 |
| IQR/Median LSM | 109 | 0.18 [0.12] | 0.03–0.93 |
| CAP in dB/m | 106 | 250 [120] | 100–400 |
| CAP IQR | 106 | 36 [25] | 0–147 |
| VCTE operator | 109 | Operator A: 35 (32) | – |
| Operator B: 23 (21) | – | ||
| Operator C: 18 (17) | – | ||
| Operator D: 11 (10) | – | ||
| Ten others: 22 (20) | – | ||
| VCTE F-score | 97 | F0: 13 (13) | – |
| F1: 13 (13) | – | ||
| F2: 15 (15) | – | ||
| F3: 21 (22) | – | ||
| F4: 35 (36) | – |
†For continuous variables (for example, LSM, CAP), median values are reported followed by IQR in square brackets. For categorical variables (for example probe, operator, F-score), number of patients in each category followed by percentage of total in parentheses are reported. ‡Defined as studies with IQR/median LSM greater than 0.30 when median LSM is greater than 7.1 kPa. CAP, controlled attenuation parameter; IQR, interquartile range; VCTE, vibration-controlled transient elastography.