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Progressive damage on high resolution computed tomography despite stable lung function in cystic fibrosis

P A de Jong1, Y Nakano, M H Lequin

  • 1Dept of Paediatric Pulmonology, Sophia Children's Hospital, Erasmus Medical Centre Rotterdam, Rotterdam, The Netherlands.

The European Respiratory Journal
|January 24, 2004
PubMed

Insights

High-resolution computed tomography (HRCT) is more sensitive than pulmonary function tests (PFT) for detecting early lung damage progression in cystic fibrosis (CF) children. HRCT can aid in monitoring CF lung disease and evaluating treatment effectiveness.

Area of Science:

  • Medical Imaging
  • Pulmonology
  • Pediatrics

Background:

  • Effective clinical management of cystic fibrosis (CF) lung disease requires close monitoring of lung damage.
  • Early detection of disease progression is crucial for timely intervention in CF patients.

Purpose of the Study:

  • To investigate the sensitivity of high-resolution computed tomography (HRCT) scoring systems and pulmonary function tests (PFT) in detecting lung disease changes in children with CF.
  • To compare the ability of HRCT and PFT to identify disease progression over a two-year period.

Main Methods:

  • Forty-eight children with CF underwent two HRCT scans and two PFTs, two years apart.
  • Five HRCT scoring systems (Castile, Brody, Helbich, Santamaria, and Bhalla) were used to evaluate lung damage.
  • Sensitivity was defined as the ability to detect disease progression.

Main Results:

  • HRCT scores significantly worsened over two years, indicating disease progression.
  • Pulmonary function tests (PFT) remained unchanged or showed improvement, masking underlying structural damage.
  • Specific HRCT parameters like mucous plugging and bronchiectasis severity, extent, and peripheral extension showed significant worsening.
  • Weak correlations were observed between changes in HRCT scores and PFT results.
  • Significant structural lung damage was detected by HRCT in some children with normal PFT results.

Conclusions:

  • High-resolution computed tomography (HRCT) is more sensitive than pulmonary function tests (PFT) for detecting early and progressive lung disease in children with cystic fibrosis.
  • HRCT is a valuable tool for monitoring CF lung disease progression and can serve as an outcome measure in clinical studies aimed at reducing lung damage.

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