Abstract
RATIONALE AND OBJECTIVES: We investigated the relationships between spontaneously healed asymptomatic pulmonary tuberculosis (SHAPTB), airflow obstruction (AFO), and high-resolution computed tomography (HRCT) findings. MATERIALS AND METHODS: We selected 82 participants with SHAPTB diagnosed by interferon-γ release assay and 8044 with normal chest radiographs (CXR). We applied a CT scoring system for the extent of tuberculous sequelae to correlate the HRCT findings with pulmonary function test. We compared the AFO prevalence between subjects with and without SHAPTB. RESULTS: The subjects with SHAPTB diagnosed by interferon-γ release assay had a significantly higher prevalence of AFO (13.4% [11/82]) than those with normal CXR (7.4% [595/8044]). The important HRCT findings that correlated with AFO were the number of lung segments with TB sequelae and the CT score for emphysema. CONCLUSION: The subjects with SHAPTB had a higher AFO prevalence than those with normal CXR, and the important HRCT findings correlated with AFO were the extent of tuberculous sequelae and emphysema.
Original language | English |
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Pages (from-to) | 528-533 |
Number of pages | 6 |
Journal | Journal of Computer Assisted Tomography |
Volume | 36 |
Issue number | 5 |
DOIs | |
Publication status | Published - 2012 |
Keywords
- airway obstruction
- computed tomography
- prevalence
- respiratory function test
- tomography
- tuberculosis
ASJC Scopus subject areas
- Radiology Nuclear Medicine and imaging