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Related Experiment Video

Updated: Jan 11, 2026

Multi-modal Pulmonary Imaging: Using Complementary Information from CT and Hyperpolarized 129Xe MRI to Evaluate Lung Structure-Function
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Structural and Functional Pulmonary MRI to Predict Pulmonary Exacerbations in Cystic Fibrosis.

Alexander M Matheson1, Abdullah S Bdaiwi1, Matthew M Willmering2

  • 1Center for Pulmonary Imaging Research, Cincinnati Children's Hospital Medical Center, Cincinnati, OH; Division of Pulmonary Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH.

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Summary

Pulmonary MRI scans can predict future pulmonary exacerbations (PExs) in cystic fibrosis (CF) patients. Structural and ventilation defects identified by MRI are linked to increased PEx risk, offering better prediction than spirometry alone.

Keywords:
MRIcystic fibrosispredictive modelingpulmonary exacerbation

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Area of Science:

  • Medical imaging
  • Pulmonology
  • Radiology

Background:

  • Pulmonary exacerbations (PExs) significantly impact cystic fibrosis (CF) patients' lung function and quality of life.
  • Current clinical metrics have limitations in predicting future PEx events.
  • Pulmonary MRI is a sensitive tool for assessing CF lung disease, but its predictive capability for PExs remains unexplored.

Purpose of the Study:

  • To investigate if structural lung MRI scores and xenon MRI ventilation defects predict PEx risk in CF patients.
  • To determine the association between these MRI measurements and future PEx occurrence.

Main Methods:

  • Retrospective analysis of clinical, imaging (ultrashort echo time [UTE] MRI and 129Xe ventilation MRI), and spirometry data from 106 CF patients (6-45 years).
  • PEx defined by hospitalization or IV antibiotic treatment.
  • UTE MRI scored using a modified Brody system; xenon MRI ventilation defects measured by ventilation defect percent (VDP).
  • Statistical analyses included group comparisons, correlations, time-to-event analysis, and multivariable modeling.

Main Results:

  • Patients with PEx within 2 years post-MRI showed higher VDP, with VDP correlating positively with exacerbation frequency.
  • Abnormal VDP (>3%) was associated with a nearly 3-fold increased PEx incidence rate (2.80; 95% CI, 1.6-4.56).
  • Severe UTE MRI scores (consolidation, wall thickening, bronchiectasis) correlated with increased exacerbations.
  • Imaging-inclusive multivariable models outperformed clinical data-only models for PEx prediction.
  • VDP, but not spirometry, was a significant predictor in models controlling for prior exacerbations.

Conclusions:

  • Structural and functional MRI measurements are associated with future exacerbations in CF patients.
  • These MRI findings likely reflect direct measures of underlying disease pathology.
  • MRI offers a promising tool for predicting PEx risk in cystic fibrosis.