Detailed analysis of the density change on chest CT of COPD using non-rigid registration of inspiration/expiration CT scans
Conclusions
Detailed analysis of density change at inspiration and expiration CT of COPD can provide new insights into pulmonary functional impairment in each lung area.
Key Points
• COPD patients show significant air trapping in the lung.
• The air trapping index is a comparable parameter to other CT indices.
• Air trapping of emphysema and hyperinflated lung areas relates to functional loss.
• The emphysema area changes more, with less air trapping than other areas.
Source: European Radiology - Category: Radiology Source Type: research
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