Table 2.
Distribution of Various CT Measurements According to the Presence of HsPE and the Accuracy of the Measurements in Discriminating (Area under the Curve, P Value), Based on the Thresholds of the Classification Trees
| Variable | Hemodynamically insignificant effusion (n = 186) |
Hemodynamically significant effusion (n = 22) |
AUC | P value |
|---|---|---|---|---|
| LV volume | 0.713 (0.582–0.844) | .001 | ||
| ≤50 | 27 (15) | 13 (59) | ||
| >50 | 158 (85) | 9 (41) | ||
| LA volume | 0.782 (0.672–0.892) | <.001 | ||
| ≤59.4 | 47 (25) | 19 (86) | ||
| 59.4–87.25 | 57 (31) | 0 | ||
| >87.25 | 82 (44) | 3 (14) | ||
| RV volume | 0.833 (0.760–0.905) | <.001 | ||
| ≤82.7 | 36 (19) | 16 (76) | ||
| 82.7–128.5 | 73 (39) | 5 (24) | ||
| >128.5 | 77 (41) | 0 | ||
| RA volume | 0.851 (0.776–0.925) | <.001 | ||
| ≤64.1 | 29 (16) | 16 (73) | ||
| 64.1–86.1 | 37 (20) | 5 (23) | ||
| >86.1 | 120 (65) | 1 (5) |
HsPE, hemodynamically significant pericardial effusion; LA, left atrium; LV, left ventricle; RA, right atrium; RV, right ventricle.
Volume is given in ml.
Number of patients and percentages.