Negative CT pulmonary angiography | Positive CT pulmonary angiography | Total | Pearson Chi-Square value | P value | Sig. | ||
---|---|---|---|---|---|---|---|
Sex | Female (No/percentage) | 26 (46.4%) | 12 (30%) | 38 (39.6%) | 1.317 | 0.251 | NS |
Male (No/percentage) | 30 (53.6%) | 28 (70%) | 58 (60.4%) | ||||
Total | 56 | 40 | 96 | ||||
The main complaint at the time of CTPA | Desaturation | 10 (17.9%) | 18 (45%) | 28 (29.2%) | 4.160 | 0.041* | S |
Hemoptysis | 2 (3.6%) | 12 (30%) | 14 (14.6%) | 6.542 | 0.011* | S | |
Progressive dyspnea | 36 (64.3%) | 28 (70%) | 64 (66.7%) | 0.171 | 0.679 | NS | |
Tachycardia | 4 (7.1%) | 10 (25%) | 14 (14.6%) | 2.987 | 0.084 | NS | |
Chest pain | 10 (17.9%) | 18 (45%) | 28 (29.2%) | 4.160 | 0.041* | S | |
Rising D-dimer level | 6 (10.7%) | 32 (80%) | 38 (39.6%) | 23.419 | 0.000^ | HS | |
NCCT interpretation by RSNA | Typical | 34 (60.7%) | 22 (55%) | 56 (58.3%) | 5.094 | 0.165 | NS |
Indeterminate | 12 (21.4%) | 12 (30%) | 24 (25%) | ||||
Atypical | 2 (3.6%) | 6 (15%) | 8 (8.3%) | ||||
Negative | 8 (14.3%) | 0 (0%) | 8 (8.3%) | ||||
Total | 56 | 40 | 96 | ||||
Progressive NCCT | 4 (7.1%) | 36 (90%) | 40 (41.7%) | 32.953 | 0.000^ | HS |