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[High-resolution computer tomography of diffuse infiltrative lung diseases]

E Vajda1, A Mester, T Major

  • 1Tüdögyógyászati Klinika, Semmelweis Orvostudományi Egyetem, Budapest.

Orvosi Hetilap
|January 23, 1999
PubMed
Summary

High-resolution computed tomography (HRCT) effectively detects diffuse infiltrative pulmonary disease, correlating well with histological findings for fibrosis and inflammation. This imaging technique aids in diagnosis and treatment monitoring.

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Area of Science:

  • Pulmonary Medicine
  • Radiology
  • Pathology

Background:

  • Diffuse infiltrative pulmonary diseases present subtle findings on chest X-ray, necessitating advanced imaging.
  • Idiopathic pulmonary fibrosis, autoimmune diseases, and sarcoidosis are common causes of interstitial lung disease.

Purpose of the Study:

  • To evaluate the diagnostic utility of high-resolution computed tomography (HRCT) in diffuse infiltrative pulmonary disease.
  • To compare HRCT findings with histological analysis from transbronchial biopsies.
  • To assess HRCT's role in disease characterization and treatment monitoring.

Main Methods:

  • 101 patients with suspected diffuse infiltrative pulmonary disease underwent HRCT.
  • HRCT findings (reticular, nodular, ground-glass, emphysematous, ring-like changes) were documented.

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  • Transbronchial excision and histological analysis were performed in 51 patients for comparison.

    • Main Results:

    • HRCT identified various interstitial lung disease patterns, including reticular (61%) and nodular (55%) changes.
    • HRCT and histology showed 70% concordance for fibrosis and inflammation.
    • HRCT accurately detected fine fibrotic, emphysematous, and inflammatory signs.

    Conclusions:

    • HRCT is a valuable tool for diagnosing diffuse infiltrative pulmonary disease.
    • HRCT aids in assessing disease activity and guiding biopsy site selection.
    • HRCT is useful for monitoring treatment effectiveness in interstitial lung diseases.