Idiopathic pulmonary fibrosis: current and future directions

Area of Science:

• Pulmonology
• Radiology
• Interstitial Lung Diseases

Background:

• Idiopathic pulmonary fibrosis (IPF) is the most common idiopathic interstitial pneumonia.
• Historically considered untreatable, IPF now has effective therapies, increasing diagnostic importance.
• Radiology is critical for early IPF diagnosis within multidisciplinary teams.

Purpose of the Study:

• To review the role of radiology in diagnosing and evaluating Idiopathic Pulmonary Fibrosis (IPF).
• To discuss diagnostic challenges, including interobserver variability in usual interstitial pneumonia (UIP) patterns.
• To explore ancillary radiological features, comorbidities, and emerging entities in IPF, and radiology's prognostic role.

Main Methods:

• Review of current literature and international management guidelines for IPF.
• Analysis of diagnostic criteria and confidence levels for radiological patterns of UIP.
• Discussion of ancillary radiological findings, comorbidities, and new entities associated with IPF.

Main Results:

• Radiology is essential for early IPF diagnosis, but interobserver variability in UIP pattern recognition exists.
• Ancillary radiological features, comorbidities, and emerging entities require consideration alongside UIP.
• Radiology is evolving into a key prognostic tool for longitudinal IPF patient evaluation.

Conclusions:

• Accurate and early IPF diagnosis relies on a multidisciplinary approach with radiology.
• Radiological interpretation of UIP patterns faces challenges due to interobserver variability.
• Radiology's role in IPF extends beyond diagnosis to prognosis and patient management.