PURPOSE: To describe the prognostic value of pulmonary artery (PA) trunk enlargement on the admission of in-hospital patients with severe COVID-19 infection by unenhanced CT image . MATERIALS AND
METHODS: In-hospital patients confirmed COVID-19 from January 18, 2020, to March 7, 2020, were retrospectively enrolled . PA trunk diameters on admission and death events were collected to calculate the optimum cutoff using a receiver operating characteristic curve . According to the cutoff, the subjects on admission were divided into two groups . Then the in-hospital various parameters were compared between the two groups to assess the predictive value of PA trunk diameter .
RESULTS: In the 180 enrolled in-hospital patients (46.99 ± 14.95 years; 93 (51.7 %) female , 14 patients (7.8 %) died during their hospitalization . The optimum cutoff PA trunk diameter to predict in-hospital mortality was> 29 mm with a sensitivity of 92.59% and a specificity of 91.11% . Kaplan-Meier survival curves for PA trunk diameter on admission showed that a PA trunk diameter> 29 mm was a significant predictor of subsequent death (log-rank <0.001, median survival time of PA> 29 mm was 28 days).
CONCLUSION: PA trunk enlargement can be a useful predictive factor for distinguishing between mild and severe COVID-19 disease progression.
Index: COVID-19, Death events, Pneumonia, Prognosis, Pulmonary artery trunk diameter