Why the study?
Does lung attenuation on inspiratory/expiratory CT and CTA correlate with pulmonary function test results in patients with chronic pulmonary embolism?
Population
9 patients with chronic pulmonary embolism and 9 age-matched normal controls.
Comparison
Inspiratory/expiratory computed tomography and… vs Age-matched normal subjects
Design
Case-control
Authors
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Expiratory CT air trapping may reflect peripheral airway obstruction in chronic PE; hypothesis-generating and requires prospective validation before clinical use.
Does lung attenuation on inspiratory/expiratory CT and CTA correlate with pulmonary function test results in patients with chronic pulmonary embolism?
In patients with chronic pulmonary embolism, air trapping on expiratory CT is common and correlates with peripheral airway obstruction on pulmonary function tests.
Arakawa et al. (2003) studied this question.
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