Endobronchial valve

Endobronchial valves are one-way valves that restrict airflow to a particular lung segment. The devices are inserted via bronchoscopy. They permit the drainage of airway secretions during the expiratory phase but restrict incoming airflow during inspiration 1.

They were originally designed as an alternative to surgery for lung volume reduction in cases of severe emphysema. They have also been used to treat bronchopleural and bronchoalveolar fistulas with persistent air-leaks 1,2

The most popular device is the Spiration Intrabronchial Valve System®. The device is MR conditional at 1.5T and 3T 2.

Radiographic features

Plain radiograph

Small radio-opaque markers and struts overlying an airway will be visible. Atelectasis distal to the valve should usually also be visible 3.


Potential complications include 3:

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Article information

rID: 62811
System: Chest
Synonyms or Alternate Spellings:
  • Bronchial valve

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Cases and figures

  • Case 1: for emphysema
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  • Case 2: for emphysema
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  • Case 3: for bronchopleural fistula
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