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Implanted lung volume reduction coils. X-ray of the lungs of a patient who has had lung volume reduction coils (white strands) implanted in their lungs. Lung volume reduction (LVR) coils are a minimally invasive technique used to reduce the effects of severe emphysema or chronic obstructive pulmonary disease (COPD). The coils are inserted into the damaged areas of the lungs, reducing the over-inflation of the alveoli that causes shortness of breath in this condition.
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