Table 3.
Diagnostic tests documented
| Test | Only at diagnosis | Only at initial visit | At diagnosis and initial visit | Only during follow-up | At diagnosis and follow-up | At initial visit and follow-up | At diagnosis, initial visit, and follow-up | At any time | Never |
|---|---|---|---|---|---|---|---|---|---|
| CT | 67 (32) | 10 (5) | 22 (10) | 2 (1) | 0 (0) | 2 (1) | 2 (1) | 105 (50) | 107 (50) |
| CT angiography | 85 (40) | 15 (7) | 43 (20) | 2 (1) | 4 (2) | 3 (1) | 7 (3) | 159 (75) | 53 (25) |
| Chest ultrasonography | 9 (4) | 5 (2) | 8 (4) | 3 (1) | 1 (< 1) | 0 (0) | 2 (1) | 28 (13) | 184 (87) |
| Electrocardiography | 37 (17) | 21 (10) | 76 (36) | 4 (2) | 12 (6) | 4 (2) | 27 (13) | 181 (85) | 31 (15) |
| Echocardiography | 48 (23) | 14 (7) | 91 (43) | 1 (< 1) | 13 (6) | 4 (2) | 28 (13) | 199 (94) | 13 (6) |
| MR | 2 (1) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 2 (1) | 210 (99) |
| MR angiography | 3 (1) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 3 (1) | 209 (99) |
| Pulmonary angiography | 43 (20) | 21 (10) | 16 (8) | 7 (3) | 7 (3) | 8 (4) | 4 (2) | 106 (50) | 106 (50) |
| RHC | 72 (34) | 31 (15) | 35 (17) | 10 (5) | 24 (11) | 18 (8) | 8 (4) | 198 (93) | 14 (7) |
| V/Q scintigraphy | 75 (35) | 24 (11) | 21 (10) | 6 (3) | 6 (3) | 3 (1) | 0 (0) | 135 (64) | 77 (36) |
Data are n (%) of the total population (n = 212). Patients shown as undergoing a test during follow-up may have done so at more than one follow-up visit
CT computed tomography, MR magnetic resonance, RHC right heart catheterization, V/Q ventilation/perfusion