| Id |
Subject |
Object |
Predicate |
Lexical cue |
| T71 |
0-16 |
Sentence |
denotes |
Chest radiograph |
| T72 |
17-176 |
Sentence |
denotes |
Chest radiograph of COVID-19 is not routinely recommended in clinical practice currently because they are insensitive to detecting COVID-19 in the early stage. |
| T73 |
177-455 |
Sentence |
denotes |
However, chest radiography may have some utility, with the potential to serve as a screening tool on the frontlines in medical settings with limited resources or in cases where the patient’s physical condition does not allow for transport to the radiology department CT scanner. |
| T74 |
456-582 |
Sentence |
denotes |
As the disease progresses beyond the early stage, chest radiography can detect multiple patchy opacities throughout the lungs. |
| T75 |
583-683 |
Sentence |
denotes |
These opacities eventually become confluent and severe cases may appear as a “whited out lung” [15]. |
| T76 |
684-856 |
Sentence |
denotes |
In more advanced cases, in addition to the ground glass opacity and consolidation, even pleural fluid (in a severe case) has been reported on the chest radiographs [2, 16]. |
| T77 |
857-978 |
Sentence |
denotes |
Progressive opacities and consolidation have been observed on chest radiographs over the time course of the illness [17]. |
| T78 |
979-1142 |
Sentence |
denotes |
In the first case of COVID-19 reported in the USA, there were no obvious abnormalities on the chest radiograph during the early stages after the onset of symptoms. |
| T79 |
1143-1249 |
Sentence |
denotes |
However, on day 9 of the illness, an increased area left basilar opacity was visible on chest radiography. |
| T80 |
1250-1370 |
Sentence |
denotes |
Then, stable streaky opacities in the lung bases were visible, and the opacities have steadily increased over time [18]. |
