Related Experiment Video
Updated: Oct 7, 2025
08:05
Lung CT Segmentation to Identify Consolidations and Ground Glass Areas for Quantitative Assesment of SARS-CoV Pneumonia
Published on: December 19, 2020
14.4K
COVID-19 findings in chest computed tomography.
Camila Calvi1, Fernanda Filetti Ferreira1, Lucas Lyrio1
1Universidade Federal do Espírito Santo, Hospital Universitário Cassiano Antônio Moraes, Division of Radiology - Vitória (ES), Brazil.
Revista Da Associacao Medica Brasileira (1992)
|January 12, 2022
Summary
Chest computed tomography (CT) scans reveal common findings like ground-glass opacities in COVID-19 patients. Specific CT patterns can indicate a poorer prognosis, aiding clinical decisions for hospitalized individuals.
Area of Science:
- Radiology
- Infectious Diseases
- Pulmonology
Background:
- Coronavirus disease 2019 (COVID-19) presents a wide clinical spectrum.
- Accurate patient management requires understanding disease progression and prognosis.
Purpose of the Study:
- To document chest computed tomography (CT) imaging characteristics in hospitalized COVID-19 patients.
- To correlate CT findings with patient outcomes, including mortality.
Main Methods:
- Retrospective analysis of chest CT scans from 453 hospitalized COVID-19 patients.
- Data collected from two Brazilian tertiary care centers.
- Clinical and demographic data extracted from electronic medical records.
Main Results:
- The most frequent CT findings were ground-glass opacities (92.5%) and consolidation (79.2%).
- Patients with poorer prognosis (30% mortality) showed higher rates of ground-glass opacities (94.1%) and consolidation (89.7%).
- Other significant findings included parenchymal bands (50%) and septal thickening (43.5%).
Conclusions:
- Chest CT is valuable in assessing COVID-19 severity.
- Identifying specific CT patterns associated with poor prognosis can inform clinical management.
- Radiologists play a key role in guiding patient care decisions through timely CT interpretation.
Related Concept Videos
01:10Computed Tomography
6.9K
Tomography refers to imaging by sections. Computed tomography (CT) is a non-invasive imaging technique that uses computers to analyze several cross-sectional X-rays to reveal minute details about structures in the body.
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...
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...
6.9K
01:30Radiological Investigation I: X-ray and CT
470
Radiological investigations, including X-rays and computed tomography (CT) scans, are critical for diagnosing and evaluating various medical conditions. These imaging techniques provide valuable insights into the body's internal structures, aiding in the detection of abnormalities, assessment of disease progression, and development of treatment strategies. This article delves into two primary radiological investigations, chest X-rays and CT scans, outlining their purpose, procedures, and...
470
01:20Imaging Studies for Cardiovascular System III: X-Ray
312
The most common cardiovascular diagnostic test is an X-ray. It produces images of the heart, blood vessels, and adjacent structures.
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...
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...
312
01:13Radiological Investigation III: Pulmonary Angiogram and PET Scan
187
Radiological investigations are paramount in the diagnosis and management of various pulmonary diseases. Two essential investigations are the Pulmonary Angiogram and the Positron Emission Tomography (PET) Scan.
Pulmonary Angiogram
A Pulmonary Angiogram is an invasive procedure involving injecting a contrast medium through a catheter threaded into the pulmonary artery or the right side of the heart to visualize the pulmonary vasculature. Computed Tomography (CT) scans have mainly replaced this...
Pulmonary Angiogram
A Pulmonary Angiogram is an invasive procedure involving injecting a contrast medium through a catheter threaded into the pulmonary artery or the right side of the heart to visualize the pulmonary vasculature. Computed Tomography (CT) scans have mainly replaced this...
187
01:28Imaging Studies for Cardiovascular System V: CT
89
Cardiac computed tomography (CT) scanning is an advanced cardiac imaging technique that utilizes CT technology, with or without intravenous (IV) contrast, to produce accurate cross-sectional virtual slices of specific areas of the heart, coronary circulation, and major blood vessels such as the aorta, pulmonary veins, and arteries. The computer processes these slices to generate three-dimensional images. Multidetector CT (MDCT) is a rapid form of CT scanning that captures multiple slices...
89
01:27Imaging Studies III: Computed Tomography
79
DefinitionComputed Tomography (CT) of the genitourinary (GU) tract is a non-invasive imaging modality that utilizes X-rays and computer processing to generate detailed cross-sectional images of the urinary system, encompassing the kidneys, ureters, bladder, and adjacent structures such as the adrenal glands.PurposeCT scans of the GU tract serve several diagnostic and therapeutic purposes, including:Diagnosis of Urinary Tract Diseases: Detects kidney stones, tumors, cysts, and congenital...
79