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Related Concept Videos

Radiological Investigation II: MRI and Ventilation Perfusion Scan01:30

Radiological Investigation II: MRI and Ventilation Perfusion Scan

Description
Magnetic Resonance Imaging (MRI) and Ventilation Perfusion Scans are two radiological investigations that offer detailed diagnostic images of the body, particularly lung structures.
MRI
MRI uses magnetic fields and radiofrequency signals to distinguish between normal and abnormal tissues. This technology provides a more detailed diagnostic image than CT scans, enabling it to characterize pulmonary nodules, stage bronchogenic carcinoma, and evaluate inflammatory activity in...
Radiological Investigation III: Pulmonary Angiogram and PET Scan01:13

Radiological Investigation III: Pulmonary Angiogram and PET Scan

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...
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...
Imaging Studies I: CT and MRI01:14

Imaging Studies I: CT and MRI

Introduction: MRI and CT scans are crucial advancements in medical imaging techniques, playing a vital role in diagnosing conditions related to the gastrointestinal (GI) system. Each scan serves distinct purposes, targets specific areas, and requires unique nursing duties.
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...
Positron Emission Tomography01:29

Positron Emission Tomography

Positron emission tomography (PET) is a medical imaging technique involving radiopharmaceuticals — substances that emit short-lived radiation. Although the first PET scanner was introduced in 1961, it took 15 more years before radiopharmaceuticals were combined with the technique and revolutionized its potential.
One of the main requirements of a PET scan is a positron-emitting radioisotope, which is produced in a cyclotron and then attached to a substance used by the part of the body being...
Imaging Studies II: Positron Emission Tomography and Scintigraphy01:25

Imaging Studies II: Positron Emission Tomography and Scintigraphy

Positron Emission Tomography (PET) is a medical imaging technique that provides crucial insights into the body's physiological functions at a molecular level. It is an indispensable resource for diagnosing, staging, and monitoring various illnesses, notably cancer, neurological disorders, and cardiovascular conditions.
Fundamental Principles of PET

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Related Experiment Video

Updated: May 26, 2026

Phase-Resolved Functional Lung MRI for Pulmonary Ventilation and Perfusion (V/Q) Assessment
05:56

Phase-Resolved Functional Lung MRI for Pulmonary Ventilation and Perfusion (V/Q) Assessment

Published on: August 9, 2024

Quantitative pulmonary imaging using computed tomography and magnetic resonance imaging.

George R Washko1, Grace Parraga, Harvey O Coxson

  • 1Department of Medicine, Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital, Boston, Massachusetts, USA.

Respirology (Carlton, Vic.)
|December 7, 2011
PubMed
Summary

Lung imaging techniques like CT and MRI offer deeper insights into lung structure and function than traditional spirometry. This review explores their use in understanding smoking-related lung diseases and their clinical applications.

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Area of Science:

  • Pulmonary Medicine
  • Radiology
  • Medical Imaging

Background:

  • Traditional lung function tests (spirometry, body plethysmography) are clinical standards but fail to explain disease variability or link lung structure to function.
  • Lung imaging analysis is increasingly integrated into clinical, epidemiologic, and genetic research.
  • Non-invasive imaging modalities are advancing the study of lung anatomy and function.

Purpose of the Study:

  • To review the application of advanced lung imaging techniques in understanding smoking-related lung diseases.
  • To highlight the clinical utility of image-based assessments in pulmonary medicine.

Main Methods:

  • Focus on X-ray computed tomography (CT) and magnetic resonance imaging (MRI) as key non-invasive imaging modalities.
  • Briefly introduce the principles of CT and MRI.
  • Detail recent research utilizing these techniques for characterizing smoking-related lung disease.

Main Results:

  • Imaging provides a more comprehensive understanding of lung structure-function relationships compared to traditional methods.
  • Recent studies demonstrate the potential of CT and MRI in identifying and characterizing pathological changes associated with smoking.
  • Emerging clinical applications are being developed based on imaging findings.

Conclusions:

  • Advanced lung imaging, particularly CT and MRI, offers significant advantages over conventional lung function tests.
  • These modalities are crucial for a deeper understanding of smoking-related lung diseases.
  • Further research and clinical integration of lung imaging are warranted for improved patient outcomes.