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Clinical Trial Summary

Whole-body plethysmography (WBP) is the gold standard for measuring lung volume, but its clinical application is limited because it requires expensive equipment and is complicated to use. Studies have shown that the single-breath helium dilution (SBHD) method, which is commonly used in clinical practice, significantly underestimates lung volume in patients with obstructive lung disease (OLD). Therefore, by comparing the differences in lung volume measured by the SBHD method and WBP in patients with different severities of obstructive lung disease, we aim to establish a correction equation for the SBHD method to determine the total lung volume in obstructive lung disease patients.


Clinical Trial Description

n/a


Study Design


Related Conditions & MeSH terms


NCT number NCT04919200
Study type Observational
Source Second Affiliated Hospital, School of Medicine, Zhejiang University
Contact
Status Completed
Phase
Start date January 1, 2018
Completion date December 31, 2020

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