Table 3. Measurement and classification accuracy by location.
| Dataset A (399 cases/3,192 locations) | All locations | Root | Ascending aorta | Arch | Descending aorta |
|---|---|---|---|---|---|
| Cases with initially correct estimation (within 5 mm interval for all measurements) | 254/399 (63.7%) | NA§ | |||
| Reviewed cases† | 145/399 (36.3%) | ||||
| Reviewed locations† | 1,160 | ||||
| Correct measurement | 748/1,160 (64.5%) | 24/290 (8.3%) | 110/145 (75.9%) | 361/435 (83.0%) | 246/290 (84.8%) |
| Wrong measurement | 377/1,160 (32.5%) | 266/290 (90.3%) | 32/145 (22.1%) | 69/435 (15.9%) | 14/290 (4.8%) |
| Missing measurement | 35/1,160 (3.0%) | 0/290 | 3/145 (2.0%) | 5/435 (1.1%) | 30/290 (10.3%) |
| No change of classification | 76/145 (52.4%) | 96/145 (66.2%) | 134/145 (92.4%) | 130/145 (89.7%) | NA |
| Change of classification | 69/145 (47.6%) | 49/145 (33.8%) | 11/145 (7.6%) | 15/145 (10.3%) | NA |
| Aneurysms misclassified by DL-algorithm in reviewed cases | 34/145‡ (23.4%) | 18/145 (12.4%) | 11/145 (7.6%) | 11/145 (7.6%) | NA |
| Finally correct measurements (incl. reviewed locations) | 2,778/3,192 (87.0%) | 537/798 (67.3%) | 364/399 (91.2%) | 1,123/1,197 (93.8%) | 754/798 (94.5%) |
| Aneurysms misclassified by DL-algorithm (all cases) | 34/399‡ (8.5%) | 18/399 (4.5%) | 11/399 (2.8%) | 11/399 (2.8%) | NA |
Measurement and classification accuracy by location. †, cases with a difference >5 mm between DL and original measurements underwent detailed review of all measurements. ‡, in 6 cases the misclassified aneurysm extended to multiple locations, those cases were only counted once. §, not available in original reports. DL, deep learning; NA, not available.