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Discrete lung involvement in systemic lupus erythematosus: CT assessment
A A Bankier1, H P Kiener, M N Wiesmayr
1Department of Radiology, University of Vienna, Austria.
Radiology
|September 1, 1995
Summary
Computed tomography (CT) detects early lung disease in systemic lupus erythematosus (SLE) patients missed by chest X-rays. CT findings correlate with disease duration and lung function, aiding early SLE assessment.
Area of Science:
- Pulmonary Medicine
- Rheumatology
- Radiology
Background:
- Systemic lupus erythematosus (SLE) can affect the lungs.
- Early detection of pulmonary involvement is crucial for SLE management.
- Chest radiography may not identify subtle lung changes in SLE.
Purpose of the Study:
- To evaluate the computed tomographic (CT) appearance of early lung involvement in patients with SLE.
- To compare CT findings with chest radiography in SLE patients.
- To correlate CT findings with clinical and functional data.
Main Methods:
- Prospective study of 48 SLE patients without prior clinical lung disease.
- Chest radiography, CT, and pulmonary function tests were performed.
- CT scans were analyzed for parenchymal and pleural disease; findings correlated with clinical and functional data.
Main Results:
- CT identified abnormalities in 38% of patients with normal chest radiographs.
- Disease extent on CT significantly correlated with disease duration (r = .93).
- CT findings correlated with reduced diffusing capacity for carbon monoxide (r = .8) and FEV1/FVC ratio (r = .77).
Conclusions:
- CT is superior to chest radiography for detecting functionally relevant pulmonary disease in SLE.
- CT is a valuable tool for the early assessment of pulmonary involvement in SLE.
- CT findings provide insights into the relationship between lung disease, duration, and function in SLE.