Endobronchial Valves: Radiographic Appearance of a New Device for Lung Volume Reduction
Stephen C. Wei1,
Darel E. Heitkamp,
Shawn D. Teague and
Mark S. Frank
1 All authors: Department of Radiology, Indiana University School of Medicine,
University Hospital, 550 N University Blvd., Room 0279, Indianapolis, IN
46202-5253.
Fig. 1A —67-year-old man with dyspnea in postanesthesia care unit.
Anteroposterior portable chest radiograph shows radiolucent hyperexpanded
lungs and severe upper lobe emphysema. Several metallic objects are present in
perihilar regions of both lungs.
Fig. 1B —67-year-old man with dyspnea in postanesthesia care unit. Magnified
portion of A shows precisely placed metallic objects in right perihilar
region. Larger umbrella-shaped portion of each valve has central
orientation.
Fig. 1C —67-year-old man with dyspnea in postanesthesia care unit. Coronal CT
volume-intensity-projection image shows position of two intrabronchial valves
within segmental bronchi of right upper lobe of lung. Severe emphysematous
changes in lungs are evident.
Fig. 2—Photograph shows 7-mm intrabronchial valve relative to index
finger of man. Central metallic stem used for bronchoscopic retrieval projects
in superior direction.