Inspiratory and Expiratory Pulmonary CT: Change of Bronchial and Accompanying Pulmonary Arterial Diameter During Respiration in Healthy Adult Men.
10.3348/jkrs.1996.35.2.201
- Author:
Eui Yong JEON
1
;
Chang Soo KIM
;
Yo Won CHOI
;
Seok Chol JEON
;
Ho Ju YUN
;
Sun I KIM
;
Heung Suk SEO
;
Chang Kok HAHM
;
Chung Ki PARK
Author Information
1. Department of Diagnostic Radiology, College of Medicine, Hanyang University, Korea.
- Publication Type:Original Article
- Keywords:
Lung, anatomy;
Lung, CT;
Brohchi, CT;
Bronchiectasis
- MeSH:
Adult*;
Arteries;
Bronchi;
Bronchiectasis;
Humans;
Lung;
Male;
Physiology;
Pulmonary Artery;
Respiration*
- From:Journal of the Korean Radiological Society
1996;35(2):201-204
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
OBJECT: To evaluate changes in the diameter of bronchi and pulmonary arteries during respiration. MATERIALS AND METHODS: The ratio of the diameter of matched inner bronchi and accompanying pulmonary arteries was calculated from full inspiration and expiration HRCT of healthy men. RESULTS: In 106 pairs of matched bronchi and pulmonary arteries, the brohchial-arterial ratios were 0.61+/-0.18(upper lung), 0.72+/-0.21(lower lung), and0.65+/-0.20(total) at full inspiration and 0.51+/-0.32(upper lung), 0.52+/-0.15(lower lung), and 0.51+/-0.26(total) atfull expiration HRCT, denoting a statistically significant increase in bronchial diameter of the entire lung atfull inspiration. The inner diameter of the bronchus was larger than the diameter of the accompanying pulmonary artery by 0.1% at full expiration and 8.5% at full inspiration. CONCLUSION: The result of this study would be helpful in understanding the physiology of the lung during respiration.
