Table 4:
Comparison on a per-patient basis of the capabilities of area detector CT (ADCT) and multidetector CT (MDCT) for pulmonary vasculature assessment
| Feasible threshold value | Sensitivity (%) | Specificity (%) | PPV (%) | NPV (%) | Accuracy (%) | |
|---|---|---|---|---|---|---|
| Affected artery | ||||||
| ADCT | 4 | 100 (22/22) | 91 (10/11) | 96 (22/23) | 100 (10/10) | 97 (32/33) |
| MDCT | 4 | 91 (20/22) | 91 (10/11) | 95 (20/21) | 83 (10/12) | 91 (30/33) |
| Intersegmental vein | ||||||
| ADCT | 4 | 92 (26/28) | 50 * (7/14) | 79 (26/33) | 78 (7/9) | 79 * (33/42) |
| MDCT | 3 | 96 (27/28) | 21 * (3/14) | 71 (27/38) | 75 (3/4) | 70 * (30/42) |
PPV: positive predictive value; NPV: negative predictive value.
*Significant difference (P < 0.05) between ADCT and MDCT.