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Description
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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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Related Experiment Video

Updated: Jun 16, 2025

Multi-modal Pulmonary Imaging: Using Complementary Information from CT and Hyperpolarized 129Xe MRI to Evaluate Lung Structure-Function
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Quantitative Imaging Methods in Combined Pulmonary Fibrosis and Emphysema.

Jennifer M Wang1, Tetsuro Araki2, Vincent Cottin3

  • 1Division of Pulmonary and Critical Care Medicine, University of Michigan, Ann Arbor, MI.

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|August 18, 2024
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Summary
This summary is machine-generated.

Combined pulmonary fibrosis and emphysema (CPFE) is a serious lung condition. Quantitative imaging is crucial for a precise definition and better understanding of CPFE outcomes.

Keywords:
COPDCT imagingcombined pulmonary fibrosis and emphysemaemphysemainterstitial lung diseasepulmonary fibrosisquantitative imaging

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Area of Science:

  • Pulmonology
  • Radiology
  • Medical Imaging

Background:

  • Combined pulmonary fibrosis and emphysema (CPFE) is an underdiagnosed syndrome with high morbidity and mortality.
  • Patients with CPFE experience poor exercise tolerance and increased comorbidities.
  • Current understanding of CPFE is limited by a lack of precise definition.

Purpose of the Study:

  • To review the evolution of defining CPFE, from visual interpretation to quantitative imaging.
  • To evaluate the role of quantitative imaging methods and thresholds in defining CPFE.
  • To discuss challenges and future directions for using quantitative imaging in CPFE research.

Main Methods:

  • Review of early imaging studies on CPFE.
  • Evaluation of quantitative imaging approaches and thresholds in large population and single-center studies.
  • Analysis of how imaging-based definitions impact patient outcomes.

Main Results:

  • CPFE has been visually defined by the presence of both emphysema and fibrosis on CT scans.
  • Quantitative approaches have used varying thresholds for emphysema and fibrosis.
  • Quantitative imaging holds potential for a more precise definition of CPFE.

Conclusions:

  • Quantitative imaging techniques are essential for a standardized definition of CPFE.
  • Further research is needed to establish optimal quantitative thresholds for CPFE diagnosis and prognosis.
  • Addressing current challenges in quantitative imaging will improve clinical management of CPFE.