Sensitivity and specificity for detecting each abnormality | | | |
Pneumothorax (n=23) | | | |
Sensitivity | 100 (23/23) | 91.3 (63/69) | <0.001 |
Specificity | 98.2 (164/167) | 99.6 (499/501) | 0.10 |
Pneumoperitoneum (n=19) | | | |
Sensitivity | 100 (19/19) | 94.7 (54/57) | 0.25 |
Specificity | 98.2 (168/171) | 99.8 (512/513) | <0.01 |
Mediastinal widening (n=18) | | | |
Sensitivity | 83.3 (15/18) | 61.1 (33/54) | 0.03 |
Specificity | 93.6 (161/172) | 98.1 (506/516) | <0.001 |
Nodule (n=23) | | | |
Sensitivity | 95.7 (22/23) | 71.0 (49/69) | 0.04 |
Specificity | 71.9 (120/167) | 90.6 (454/501) | <0.001 |
Consolidation (n=34) | | | |
Sensitivity | 82.4 (28/34) | 60.8 (62/102) | 0.01 |
Specificity | 78.2 (122/156) | 91.2 (427/468) | <0.001 |
Pleural effusion (n=37) | | | |
Sensitivity | 86.5 (32/37) | 74.8 (83/111) | 0.03 |
Specificity | 87.6 (134/153) | 95.4 (438/459) | <0.001 |
Atelectasis or fibrosis (n=45#) | | | |
Sensitivity | 75.6 (34/45) | 68.9 (93/135) | 0.29 |
Specificity | 90.3 (131/145) | 83.9 (365/435) | 0.02 |
Calcification (n=21) | | | |
Sensitivity | 76.2 (16/21) | 58.7 (37/63) | 0.02 |
Specificity | 97.0 (164/169) | 96.8 (491/507) | 0.89 |
Cardiomegaly (n=18) | | | |
Sensitivity | 61.1 (11/18) | 35.2 (19/54) | 0.02 |
Specificity | 93.4 (141/151) | 98.5 (446/453) | 0.002 |
Urgency categorisation accuracy¶ | | | |
Critical (n=60) | 95.0 (57/60) | 84.4 (152/180) | 0.01 |
Critical or urgent (n=110) | 95.5 (105/110) | 91.2 (301/330) | 0.09 |
Normal/nonurgent (n=80) | 80.0 (64/80) | 88.3 (212/240) | 0.03 |