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Related Concept Videos

Computed Tomography01:10

Computed Tomography

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...
Chronic Obstructive Pulmonary Disease-IV: Assessement and Diagnostic Studies01:27

Chronic Obstructive Pulmonary Disease-IV: Assessement and Diagnostic Studies

Assessing and diagnosing Chronic Obstructive Pulmonary Disease (COPD) involves a detailed approach that includes a comprehensive review of medical history, physical examination, and a variety of diagnostic tests. This thorough evaluation is essential to ensure an accurate diagnosis and guide effective management strategies.
Medical History
Imaging Studies III: Computed Tomography01:27

Imaging Studies III: Computed Tomography

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...
Imaging Studies for Cardiovascular System V: CT01:28

Imaging Studies for Cardiovascular System V: CT

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...
Chronic Obstructive Pulmonary Disease-I: Introduction01:20

Chronic Obstructive Pulmonary Disease-I: Introduction

Chronic Obstructive Pulmonary Disease (COPD) is a long-lasting respiratory condition requiring continuous attention and care. It is a progressive lung disease that leads to breathing challenges due to airflow obstruction. It manifests as persistent respiratory symptoms and restricted airflow resulting from abnormalities in the airways and alveoli, usually due to long-term exposure to harmful particles or gases. COPD mainly consists of two primary conditions: emphysema and chronic bronchitis.
Imaging Studies for Cardiovascular System III: X-Ray01:20

Imaging Studies for Cardiovascular System III: X-Ray

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...

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Updated: May 26, 2026

Multi-modal Pulmonary Imaging: Using Complementary Information from CT and Hyperpolarized 129Xe MRI to Evaluate Lung Structure-Function
02:09

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Published on: April 12, 2024

Quantitative computed tomography in COPD: possibilities and limitations.

O M Mets1, P A de Jong, B van Ginneken

  • 1Department of Radiology, University Medical Center Utrecht, Huispostnummer E01.132, Postbus 85500, 3508 GA Utrecht, The Netherlands. o.m.mets@umcutrecht.nl

Lung
|December 20, 2011
PubMed
Summary
This summary is machine-generated.

Quantitative computed tomography (CT) helps phenotype chronic obstructive pulmonary disease (COPD) by measuring emphysema, air trapping, and airway dimensions, overcoming spirometry

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Area of Science:

  • Pulmonary Medicine
  • Radiology
  • Medical Imaging

Background:

  • Chronic obstructive pulmonary disease (COPD) is a complex lung disease with significant heterogeneity.
  • Current diagnostic methods like spirometry lack the granularity to fully characterize COPD subtypes.
  • Visual assessment of imaging is subjective and time-consuming, necessitating advanced techniques.

Purpose of the Study:

  • To review the role of quantitative computed tomography (CT) in phenotyping COPD.
  • To discuss CT quantification techniques for key COPD components.
  • To evaluate the current status and future potential of CT in personalized COPD management.

Main Methods:

  • Review of current literature on quantitative CT analysis in COPD.
  • Focus on techniques quantifying emphysema, air trapping, and airway dimensions.
  • Assessment of the clinical utility of these quantitative CT measures.

Main Results:

  • Quantitative CT can accurately measure emphysema, air trapping, and airway wall thickness.
  • These quantitative CT metrics offer objective data beyond traditional spirometry.
  • CT-based phenotyping holds promise for tailoring COPD treatments.

Conclusions:

  • Quantitative CT is a valuable tool for unraveling COPD heterogeneity.
  • CT quantification enables more precise phenotyping, aiding diagnosis and treatment selection.
  • Further integration of quantitative CT into clinical practice is recommended for COPD management.