Abstract

Objective To investigate the correlation between high resolution computed tomography (HRCT)and pulmonary function tests.Methods Spirometry and CT score including the number of bronchiectatic segments,bronchial dilatation and bronchial wall thickening were collected in forty patients with bronchiectasis diagnosed by HRCT.Results CT revealed that CT scores for the number of bronchiectatic segments,bronchial dilatation and bronchial wall thickening were(7.098±4.918),(6.540±4.113)and(4.405±2.477)respectively.The FEV1%pred,FVC%pred and FEV1/FVC values were (56.122±26.335)%,(66.857±21.951)% and(64.612±14.890)%respectively.The number of bronchiectatic segments significantly negatively correlated with FEV1%pred,FVC%pred and FEV1/FVC respectively(Γ=-0.451 to-0.571,P<O.01).Bronchial dilatation and bronchial wall thickening had no correlation with FEV1%pred,FVC% pred and FEV1/FVC.Conclusion There is significant correlation between the number of bronchiectatic segments and pulmonary ventilation function in patients with bronchiec,tasis. Key words: Bronchiectasis; High resolution computed tomography; Pulmonary function tests

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