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Published on: December 19, 2020
Developing a Training Web Application for Improving the COVID-19 Diagnostic Accuracy on Chest X-ray
P Menéndez Fernández-Miranda1,2, P Sanz Bellón3,4, A Pérez Del Barrio3,4
1Departamento de Radiología, Hospital Universitario "Marqués de Valdecilla", Santander, Spain. pablomenendezfernandezmiranda@gmail.com.
This study introduces COVID-19 TRAINING, a free web application designed to help medical professionals improve their skills in evaluating chest X-rays for coronavirus disease 2019 (COVID-19) diagnosis.
Area of Science:
- Medical Imaging
- Infectious Diseases
- Artificial Intelligence in Medicine
Background:
- The COVID-19 pandemic, caused by the novel coronavirus SARS-CoV-2, rapidly spread globally.
- Accurate interpretation of chest X-rays (CXR) is crucial for managing COVID-19 patients, but can be challenging.
- Existing training methods for CXR interpretation may not adequately prepare clinicians for COVID-19 specific findings.
Purpose of the Study:
- To develop and evaluate a free web-based application, COVID-19 TRAINING, for enhancing the diagnostic accuracy of healthcare professionals in interpreting COVID-19 related chest X-rays.
- To provide a structured training environment with immediate feedback on diagnostic performance metrics.
- To assess the effectiveness of the application in improving user diagnostic accuracy, sensitivity, and specificity.
Main Methods:
- Development of a web application, "COVID-19 TRAINING", featuring 196 chest X-rays categorized as non-pathological, COVID-19 positive, or other pathologies.
- Users engaged in diagnostic training by classifying CXR images and received performance feedback.
- Diagnostic accuracy, sensitivity, specificity, and global accuracy were calculated for each user.
- Statistical analysis was performed to correlate user performance metrics and engagement levels.
Main Results:
- The COVID-19 TRAINING application demonstrated average user diagnostic accuracy values of 0.72 for sensitivity, 0.64 for specificity, and 0.68 for global accuracy.
- A significant inverse relationship was observed between sensitivity and specificity (p < 0.0001).
- Higher user engagement, indicated by more submitted answers, correlated with improved overall diagnostic accuracy (p = 0.0002).
Conclusions:
- The COVID-19 TRAINING application serves as an effective and accessible tool for medical professionals to acquire and refine skills in interpreting chest X-rays for COVID-19.
- The application offers a novel method for evaluating diagnostic performance based on objective accuracy metrics.
- This platform facilitates efficient data collection for research on diagnostic accuracy in medical professionals during public health crises.
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Definition and Purpose
An X-ray, or radiograph, is a non-invasive method that uses ionizing radiation to take images of internal structures. It is mainly used in cardiac imaging to examine the heart, lungs, and major blood vessels, aiming to identify abnormalities in the heart's size, shape, and position, such as heart failure, congenital defects, and vascular...

