Spontaneously healed asymptomatic pulmonary tuberculosis: Prevalence of airflow obstruction, and correlation between high-resolution CT findings and pulmonary function tests

Ki Yeol Lee, Chol Shin, Jung Bok Lee, Eun Young Kang, Yu Whan Oh, Bo Kyung Je, Ji Young Choo, Dae Wui Yoon, Pyong Kon Cho

Research output: Contribution to journalArticle

3 Citations (Scopus)

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 languageEnglish
Pages (from-to)528-533
Number of pages6
JournalJournal of Computer Assisted Tomography
Volume36
Issue number5
DOIs
Publication statusPublished - 2012 Sep

Keywords

  • airway obstruction
  • computed tomography
  • prevalence
  • respiratory function test
  • tomography
  • tuberculosis

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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