Related Experiment Video
Updated: Aug 13, 2025

Lung CT Segmentation to Identify Consolidations and Ground Glass Areas for Quantitative Assesment of SARS-CoV Pneumonia
Published on: December 19, 2020
Novel Comparative Study for the Detection of COVID-19 Using CT Scan and Chest X-ray Images
Ahatsham Hayat1,2, Preety Baglat1,2, Fábio Mendonça1,2
1University of Madeira, 9000-082 Funchal, Portugal.
Machine learning models can rapidly diagnose COVID-19 using medical images. A new deep learning model, SCovNet, achieved nearly 99% accuracy on CT scans and X-rays for COVID-19 detection.
Area of Science:
- Artificial Intelligence
- Medical Imaging
- Infectious Diseases
Background:
- The COVID-19 pandemic necessitates rapid and accurate diagnostic methods.
- Traditional RT-PCR testing for COVID-19 is time-consuming and resource-intensive.
- Emerging machine learning and deep learning techniques offer potential for faster, automated analysis of medical images.
Purpose of the Study:
- To evaluate the efficacy of machine learning models for COVID-19 detection using medical imaging.
- To compare the performance of different classifiers, including deep learning architectures, for COVID-19 diagnosis.
- To determine if chest X-rays and CT scans are suitable for AI-driven COVID-19 detection.
Main Methods:
- Development and evaluation of four classification models: SCovNet (CNN), Resnet18 (CNN), Support Vector Machine, and Logistic Regression.
- Training and testing models on a dataset of 17,599 chest X-ray and CT scan images.
- Comparative analysis of model performance based on accuracy in classifying COVID-19 infection.
Main Results:
- The proposed SCovNet architecture demonstrated superior performance.
- SCovNet achieved an accuracy of approximately 99% on chest CT scans.
- SCovNet achieved an accuracy of approximately 98% on chest X-ray images.
Conclusions:
- Deep learning models, particularly SCovNet, show high potential for accurate and efficient COVID-19 detection from medical images.
- Chest CT scans and X-rays can be effectively utilized with AI for rapid COVID-19 diagnosis.
- AI-powered image analysis offers a promising alternative to conventional diagnostic methods, addressing limitations in speed and resource requirements.
More Related Videos
Related Concept Videos
Radiological Investigation I: X-ray and CT
Imaging Studies for Cardiovascular System V: CT
Imaging Studies I: CT and MRI
Description of the Procedures
Computed Tomography (CT) scan:
Computed Tomography (CT) scans use X-ray technology to generate detailed images of bones, organs, and tissues. During the scan, the patient lies on a moving table...
Computed Tomography
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
Imaging Studies for Cardiovascular System III: X-Ray
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...
Imaging Studies III: Computed Tomography

