Table 2. Comparison of preoperative CT indicators between the two groups.
| Variable | Calcification group (N=34) | Non-calcification group (N=70) | t/Z/χ2 | P value |
|---|---|---|---|---|
| End-diastolic left ventricular apical angle (°) | 60.60±8.48 | 61.88±11.80 | −0.27 | 0.78 |
| End-systolic left ventricular apical angle (°) | 52.00±12.97 | 54.44±10.78 | −0.44 | 0.66 |
| Apical sphericity index (%) | 78.17±28.46 | 79.02±20.37 | −0.15 | 0.87 |
| Pericardial crescent sign | 8 (23.5) | 16 (22.8) | 0.01 | 0.93 |
| Superior vena cava (mm) | 32.47±6.79 | 24.90±4.32 | 5.93 | <0.01 |
| Inferior vena cava (mm) | 42.70±9.15 | 36.12±5.45 | 3.86 | <0.01 |
| Pericardial effusion | 8 (23.5) | 52 (74.3) | 24.15 | <0.01 |
| Pleural effusion | 21 (61.7) | 55 (78.5) | 3.28 | 0.06 |
| Ascites | 12 (35.3) | 39 (55.7) | 3.81 | 0.05 |
| Pericardial thickness (mm) | ||||
| Left ventricle | 7.55±3.90 | 11.11±6.62 | −3.43 | <0.01 |
| Right ventricle | 8.08±5.51 | 11.17±6.14 | −2.48 | 0.01 |
| Apex of heart | 1.94±1.20 | 5.58±5.32 | −5.45 | <0.01 |
| Anterior interventricular groove | 4.52±4.52 | 7.47±5.89 | −2.70 | 0.01 |
| Left atrial | 2.91±2.78 | 4.62±3.60 | −2.44 | 0.02 |
| Right atrium | 4.35±3.25 | 9.07±5.58 | −5.42 | <0.01 |
| Superior vena cava | 1.79±1.38 | 3.65±3.19 | −4.14 | <0.01 |
| Inferior vena cava | 2.67±2.01 | 5.47±4.55 | −4.33 | <0.01 |
| Right ventricular outflow tract | 4.58±3.19 | 6.64±4.01 | −2.60 | 0.01 |
Data are presented as mean ± standard deviation or number (%). CT, computed tomography.