Table 5.
Pulmonary angiography, CT angiography, and CT findings at time of diagnosis and initial visit
| Specification, n (%) | Pulmonary angiography | CT angiography | CT | |||
|---|---|---|---|---|---|---|
| Diagnosis (n = 70) | Initial visit (n = 49) | Diagnosis (n = 139) | Initial visit (n = 68) | Diagnosis (n = 91) | Initial visit (n = 36) | |
| Missing | − | − | 2 (1) | 5 (7) | 2 (2) | 3 (8) |
| Consistent with CTEPH | 38 (54) | 30 (61) | 75 (54) | 38 (56) | 54 (59) | 16 (44) |
| Not consistent with CTEPH | 2 (3) | 0 (0) | 1 (1) | 1 (1) | 3 (3) | 0 (0) |
| Perfusion defect | ||||||
| Lobar | 14 (20) | 9 (18) | 14 (10) | 8 (12) | 9 (10) | 4 (11) |
| Segmental | 23 (33) | 16 (33) | 16 (12) | 8 (12) | 9 (10) | 6 (17) |
| Subsegmental | 6 (9) | 5 (10) | 4 (3) | 1 (1) | 3 (3) | 1 (3) |
| PEa | ||||||
| Massive | 3 (4) | 5 (10) | 16 (12) | 3 (4) | 8 (9) | 3 (8) |
| Submassive | 6 (9) | 3 (6) | 10 (7) | 2 (3) | 3 (3) | 3 (8) |
aAssessment of the image made at the visit indicated. It does not necessarily refer to the initial acute PE, which may have happened years before the onset of CTEPH
CT computed tomography, CTEPH chronic thromboembolic pulmonary hypertension, PE pulmonary embolism