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Related Concept Videos

Pulmonary Function Tests01:25

Pulmonary Function Tests

974
Pulmonary Function Tests (PFTs)
Pulmonary Function Tests are crucial diagnostic tools for assessing respiratory function, particularly in patients with chronic respiratory disorders. They comprehensively evaluate lung volumes, ventilatory function, breathing mechanics, diffusion, and gas exchange. These tests help diagnose pulmonary diseases and play a significant role in monitoring disease progression, evaluating disability, and assessing response to therapy.
PFTs involve using a spirometer, a...
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Radiological Investigation III: Pulmonary Angiogram and PET Scan01:13

Radiological Investigation III: Pulmonary Angiogram and PET Scan

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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...
574
Radiological Investigation II: MRI and Ventilation Perfusion Scan01:30

Radiological Investigation II: MRI and Ventilation Perfusion Scan

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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...
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Pulmonary Embolism II: Diagnostic Studies and Interprofessional Care01:29

Pulmonary Embolism II: Diagnostic Studies and Interprofessional Care

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Diagnosing Pulmonary EmbolismDiagnosing pulmonary embolism (PE) involves clinical assessment and advanced imaging tests. The preferred diagnostic tool is the spiral (helical) CT scan or CT angiography (CTA), which uses intravenous contrast media to visualize the pulmonary vasculature and identify emboli.A ventilation-perfusion (V/Q) scan is an alternative for patients unable to receive contrast media. This scan includes both perfusion and ventilation scanning. Perfusion scanning involves...
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Positron Emission Tomography01:29

Positron Emission Tomography

7.9K
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...
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Imaging Studies II: Positron Emission Tomography and Scintigraphy01:25

Imaging Studies II: Positron Emission Tomography and Scintigraphy

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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: Mar 14, 2026

Author Spotlight: Enhancing Diagnostic Strategies and Biomarker Development for Comprehensive Lung Function Analysis
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Author Spotlight: Enhancing Diagnostic Strategies and Biomarker Development for Comprehensive Lung Function Analysis

Published on: August 9, 2024

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Physiology for the pulmonary functional imager.

David L Levin1, Mark L Schiebler2, Susan R Hopkins3

  • 1Department of Radiology, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, United States.

European Journal of Radiology
|October 7, 2016
PubMed
Summary
This summary is machine-generated.

Functional lung imaging requires a shared understanding of lung physiology. This review clarifies key concepts and potential issues for accurate pulmonary functional imaging.

Keywords:
Lung physiologyPulmonary functional imagingQuantitative pulmonary perfusionQuantitative pulmonary ventilation

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Three-Dimensional Phase Resolved Functional Lung Magnetic Resonance Imaging
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Area of Science:

  • Pulmonary Medicine
  • Medical Imaging
  • Physiology

Background:

  • Functional lung imaging is increasingly utilized beyond traditional radiology and physics domains.
  • A standardized understanding of lung physiology is crucial for effective application.

Purpose of the Study:

  • To review essential physiological concepts pertinent to functional lung imaging.
  • To highlight common pitfalls encountered in pulmonary functional imaging.

Main Methods:

  • Literature review focusing on pulmonary physiology and functional imaging principles.
  • Synthesis of key concepts and identification of potential challenges.

Main Results:

  • Identified core physiological principles governing lung function relevant to imaging.
  • Outlined critical areas where misinterpretations or errors can occur in functional lung imaging.

Conclusions:

  • A common physiological understanding is vital for accurate and reproducible functional lung imaging.
  • Awareness of specific pitfalls can improve the quality and interpretation of pulmonary imaging studies.