The COVIDTW study: Clinical predictors of COVID-19 mortality and a novel AI prognostic model using chest X-ray

Background: There is a lack of published research on the impact of the first wave of the COVID-19 pandemic in Taiwan. We investigated the mortality risk factors among critically ill patients with COVID-19 in Taiwan during the initial wave. Furthermore, we aim to develop a novel AI mortality predicti...

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Main Authors: Chih-Wei Wu, Bach-Tung Pham, Jia-Ching Wang, Yao-Kuang Wu, Chan-Yen Kuo, Yi-Chiung Hsu
Format: Article
Language:English
Published: Elsevier 2023-03-01
Series:Journal of the Formosan Medical Association
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S0929664622003643
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author Chih-Wei Wu
Bach-Tung Pham
Jia-Ching Wang
Yao-Kuang Wu
Chan-Yen Kuo
Yi-Chiung Hsu
author_facet Chih-Wei Wu
Bach-Tung Pham
Jia-Ching Wang
Yao-Kuang Wu
Chan-Yen Kuo
Yi-Chiung Hsu
author_sort Chih-Wei Wu
collection DOAJ
description Background: There is a lack of published research on the impact of the first wave of the COVID-19 pandemic in Taiwan. We investigated the mortality risk factors among critically ill patients with COVID-19 in Taiwan during the initial wave. Furthermore, we aim to develop a novel AI mortality prediction model using chest X-ray (CXR) alone. Method: We retrospectively reviewed the medical records of patients with COVID-19 at Taipei Tzu Chi Hospital from May 15 to July 15 2021. We enrolled adult patients who received invasive mechanical ventilation. The CXR images of each enrolled patient were divided into 4 categories (1st, pre-ETT, ETT, and WORST). To establish a prediction model, we used the MobilenetV3-Small model with “Imagenet” pretrained weights, followed by high Dropout regularization layers. We trained the model with these data with Five-Fold Cross-Validation to evaluate model performance. Result: A total of 64 patients were enrolled. The overall mortality rate was 45%. The median time from symptom onset to intubation was 8 days. Vasopressor use and a higher BRIXIA score on the WORST CXR were associated with an increased risk of mortality. The areas under the curve of the 1st, pre-ETT, ETT, and WORST CXRs by the AI model were 0.87, 0.92, 0.96, and 0.93 respectively. Conclusion: The mortality rate of COVID-19 patients who receive invasive mechanical ventilation was high. Septic shock and high BRIXIA score were clinical predictors of mortality. The novel AI mortality prediction model using CXR alone exhibited a high performance.
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spelling doaj.art-a3695a60e9584b5780cda15731574b0c2023-02-22T04:30:03ZengElsevierJournal of the Formosan Medical Association0929-66462023-03-011223267275The COVIDTW study: Clinical predictors of COVID-19 mortality and a novel AI prognostic model using chest X-rayChih-Wei Wu0Bach-Tung Pham1Jia-Ching Wang2Yao-Kuang Wu3Chan-Yen Kuo4Yi-Chiung Hsu5Division of Pulmonary Medicine, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan; Department of Biomedical Sciences and Engineering, National Central University, Taoyuan, TaiwanDepartment of Computer Science and Information Engineering, National Central University, Taoyuan, TaiwanDepartment of Computer Science and Information Engineering, National Central University, Taoyuan, TaiwanDivision of Pulmonary Medicine, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, TaiwanDepartment of Research, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, TaiwanDepartment of Biomedical Sciences and Engineering, National Central University, Taoyuan, Taiwan; Corresponding author. Department of Biomedical Sciences and Engineering, National Central University, No. 300, Zhongda Road, Zhongli District, Taoyuan City 32001, Taiwan. Fax: +886 3 425 3427.Background: There is a lack of published research on the impact of the first wave of the COVID-19 pandemic in Taiwan. We investigated the mortality risk factors among critically ill patients with COVID-19 in Taiwan during the initial wave. Furthermore, we aim to develop a novel AI mortality prediction model using chest X-ray (CXR) alone. Method: We retrospectively reviewed the medical records of patients with COVID-19 at Taipei Tzu Chi Hospital from May 15 to July 15 2021. We enrolled adult patients who received invasive mechanical ventilation. The CXR images of each enrolled patient were divided into 4 categories (1st, pre-ETT, ETT, and WORST). To establish a prediction model, we used the MobilenetV3-Small model with “Imagenet” pretrained weights, followed by high Dropout regularization layers. We trained the model with these data with Five-Fold Cross-Validation to evaluate model performance. Result: A total of 64 patients were enrolled. The overall mortality rate was 45%. The median time from symptom onset to intubation was 8 days. Vasopressor use and a higher BRIXIA score on the WORST CXR were associated with an increased risk of mortality. The areas under the curve of the 1st, pre-ETT, ETT, and WORST CXRs by the AI model were 0.87, 0.92, 0.96, and 0.93 respectively. Conclusion: The mortality rate of COVID-19 patients who receive invasive mechanical ventilation was high. Septic shock and high BRIXIA score were clinical predictors of mortality. The novel AI mortality prediction model using CXR alone exhibited a high performance.http://www.sciencedirect.com/science/article/pii/S0929664622003643COVID-19Artificial intelligenceChest X-raysPrognosisMortalityIntensive care unit
spellingShingle Chih-Wei Wu
Bach-Tung Pham
Jia-Ching Wang
Yao-Kuang Wu
Chan-Yen Kuo
Yi-Chiung Hsu
The COVIDTW study: Clinical predictors of COVID-19 mortality and a novel AI prognostic model using chest X-ray
Journal of the Formosan Medical Association
COVID-19
Artificial intelligence
Chest X-rays
Prognosis
Mortality
Intensive care unit
title The COVIDTW study: Clinical predictors of COVID-19 mortality and a novel AI prognostic model using chest X-ray
title_full The COVIDTW study: Clinical predictors of COVID-19 mortality and a novel AI prognostic model using chest X-ray
title_fullStr The COVIDTW study: Clinical predictors of COVID-19 mortality and a novel AI prognostic model using chest X-ray
title_full_unstemmed The COVIDTW study: Clinical predictors of COVID-19 mortality and a novel AI prognostic model using chest X-ray
title_short The COVIDTW study: Clinical predictors of COVID-19 mortality and a novel AI prognostic model using chest X-ray
title_sort covidtw study clinical predictors of covid 19 mortality and a novel ai prognostic model using chest x ray
topic COVID-19
Artificial intelligence
Chest X-rays
Prognosis
Mortality
Intensive care unit
url http://www.sciencedirect.com/science/article/pii/S0929664622003643
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