Background: Six minute walk test (6MWT), represent a useful marker for exercise capacity and dynamic hyperination of COPD patients.Highresolution computed tomography (HRCT) has allowed in detection of airway wall abnormalities and emphysema, whose extent may correlate with
the clinical severity of the disease in COPD patients.
Material & methods: A cross sectional study was carried in 100 COPD patients attending Department of Respiratory Medicine, Institute of
respiratory diseases, SMS Medical College, Jaipur, during June 2018 to May 2019.All patients underwent clinically (Modied Medical Research
Council), radiologically (HRCT) &6MWT.
Results:The 6MWTshowed that a negative correlation to dyspnea (mMRC grading), emphysema score & post FEV1% predicted (p<0.0001).
Conclusion:The HRCTemphysema score can be used as an initial parameter for identify patients with high risk for COPD.