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Related Concept Videos

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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Magnetic Resonance Imaging01:24

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Magnetic resonance imaging (MRI) is a noninvasive medical imaging technique based on a phenomenon of nuclear physics discovered in the 1930s, in which matter exposed to magnetic fields and radio waves was found to emit radio signals. In 1970, a physician and researcher named Raymond Damadian noticed that malignant (cancerous) tissue gave off different signals than normal body tissue. He applied for a patent for the first MRI scanning device in clinical use by the early 1980s. The early MRI...
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Assessment of Diffusion and Perfusion01:17

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Understanding and evaluating diffusion and perfusion is critical in assessing a patient's respiratory and circulatory health. These processes play key roles in maintaining the body's internal environment, ensuring that tissues receive adequate oxygen while waste products are efficiently removed.
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Radiological Investigation III: Pulmonary Angiogram and PET Scan01:13

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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.
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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...
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Imaging Studies for Cardiovascular System IV: CMRI01:21

Imaging Studies for Cardiovascular System IV: CMRI

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Cardiovascular magnetic resonance imaging, or CMRI, is a non-invasive diagnostic test that employs a magnetic field and radiofrequency waves to create precise images of the heart and arteries. It provides comprehensive information about cardiac anatomy, function, perfusion, and tissue characterization without ionizing radiation.IndicationsCMRI diagnoses various heart conditions, including tissue damage from heart attacks, ischemic heart disease, myocarditis, aortic issues (tears, aneurysms,...
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Related Experiment Video

Updated: Mar 26, 2026

Author Spotlight: Enhancing Diagnostic Strategies and Biomarker Development for Comprehensive Lung Function Analysis
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[MRI methods for pulmonary ventilation and perfusion imaging].

G Sommer1, G Bauman2

  • 1Klinik für Radiologie und Nuklearmedizin, Universitätsspital Basel, Petersgraben 4, 4031, Basel, Schweiz. gregor.sommer@usb.ch.

Der Radiologe
|January 28, 2016
PubMed
Summary
This summary is machine-generated.

Advanced MRI techniques offer regional lung function insights, but only dynamic contrast-enhanced MRI (DCE-MRI) has sufficient clinical data for widespread use in pulmonary diseases.

Keywords:
Contrast mediaMagnetic resonance imagingPerfusion imagingRespiratory function testsVentilation

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Area of Science:

  • Pulmonary imaging and diagnostics
  • Medical imaging physics
  • Respiratory medicine

Background:

  • Accurate assessment of respiratory mechanics, gas exchange, and pulmonary circulation is crucial for diagnosing and treating lung diseases.
  • Conventional clinical lung function tests often lack specificity and sensitivity for early detection of pathological changes.
  • Standard imaging methods like CT, SPECT, and scintigraphy provide morphological and functional data but may not offer sufficient regional detail.

Purpose of the Study:

  • To review advanced Magnetic Resonance Imaging (MRI) techniques for assessing pulmonary function.
  • To evaluate the clinical applicability and current evidence for novel MRI methods in lung disease diagnosis.
  • To compare the performance of various MRI techniques against established radiological methods.

Main Methods:

  • Exploration of MRI techniques including hyperpolarized gas MRI, O2-enhanced MRI, fluorinated gas MRI, and Fourier decomposition MRI (FD-MRI) for ventilation assessment.
  • Review of dynamic contrast-enhanced MRI (DCE-MRI), arterial spin labeling (ASL), and FD-MRI for pulmonary perfusion evaluation.
  • Discussion of the advantages of MRI, such as the absence of ionizing radiation and the ability to acquire dynamic functional data.

Main Results:

  • Dynamic contrast-enhanced MRI (DCE-MRI) is the only technique with substantial clinical data supporting its application in pulmonary diagnostics.
  • Other advanced MRI methods, including those using hyperpolarized or fluorinated gases, are primarily supported by feasibility studies and small case series.
  • Technical limitations hinder the widespread clinical applicability of hyperpolarized gas MRI.

Conclusions:

  • Except for DCE-MRI, the clinical application of the discussed advanced MRI techniques should currently be limited to scientific research.
  • Further research and larger clinical trials are needed to establish the utility of novel MRI techniques in routine pulmonary diagnostics.
  • DCE-MRI shows promise for improved regional assessment of pulmonary perfusion and function.