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Published on: January 27, 2015
Relationship between diminution of small pulmonary vessels and emphysema in chronic obstructive pulmonary disease
Shuko Mashimo1, Shotaro Chubachi1, Akihiro Tsutsumi1
1Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan.
Objectives:
To investigate the relationship between small pulmonary vessels and extent of emphysema on CT in individual lungs with chronic obstructive pulmonary disease (COPD).
Methods:
Forty-nine patients were included. The percentage of cross-sectional area of vessels <5mm2 (%CSA <5) and extent of emphysema were assessed.
Results:
Less than half of the COPD patients demonstrated an inverse correlation between %CSA <5 and percentage of low attenuation area (LAA%). In the remaining patients, %CSA <5 was homogeneously distributed.
Conclusion:
Not all patients with COPD demonstrated an inverse correlation of the distributions between %CSA <5 and LAA% in individual lungs.
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