Follow-up after stent insertion in the tracheobronchial tree: role of helical computed tomography in comparison with fiberoptic bronchoscopy
- 7 February 2003
- journal article
- research article
- Published by Springer Science and Business Media LLC in European Radiology
- Vol. 13 (5), 1172-1178
- https://doi.org/10.1007/s00330-003-1820-0
Abstract
The aim of this study was to compare helical CT with fiberoptic bronchoscopy findings to appraise the medium-term results of proximal-airways stenting. Twenty-five patients with 28 endobronchial metallic stents inserted for local advanced malignancy ( n=13) or benign diseases ( n=12) underwent follow-up CT from 3 days to 50 months (mean 8 months). All studies were obtained using helical CT with subsequent multiplanar reformation and three-dimensional reconstruction including virtual bronchoscopy. The location, shape, and patency of stents and adjacent airway were assessed. The results of CT were compared with the results of fiberoptic bronchoscopy obtained with a mean delay of 2.5 days (SD 9 days) after CT scan. Twelve stents (43%) remained in their original position, patent and without deformity. Sixteen stents were associated with local complications: migration ( n=6); external compression with persistent stenosis ( n=4); local recurrence of malignancy ( n=4); fracture ( n=1); and non-congruence between the airway and the stent ( n=1). The CT demonstrated all the significant abnormalities demonstrated at fiberoptic bronchoscopy except two moderate stenoses (20%) related to granulomata at the origin of the stent. Ten of 14 stents inserted for benign conditions were without complications as compared with 2 of 14 in malignant conditions ( p=0.008). Computed tomography is an accurate noninvasive method for evaluating endobronchial stents. The CT is a useful technique for follow-up of patients who have undergone endobronchial stenting.Keywords
This publication has 23 references indexed in Scilit:
- Multiplanar and Three-Dimensional Imaging of the Central Airways with Multidetector CTAmerican Journal of Roentgenology, 2002
- Virtual tools for imaging of the thoraxEuropean Respiratory Journal, 2001
- Evidence Against Routine Scheduling of Surveillance Bronchoscopy After Stent InsertionChest, 2000
- Fatal complication of an expandable metallic bronchial stent.The British Journal of Radiology, 1999
- Expandable Metallic Stents in Benign Tracheobronchial ObstructionJournal of Thoracic Imaging, 1998
- Implantation of Accuflex and Strecker Stents in Malignant Bronchial Stenoses by Flexible BronchoscopyChest, 1997
- An Airway Wallstent for the treatment of tracheobronchial malignancies.Thorax, 1996
- Bronchial obstruction secondary to aortic pseudoaneurysm: treatment with an expandable metallic stent.American Journal of Roentgenology, 1995
- Endobronchial management of benign, malignant, and lung transplantation airway stenosesThe Annals of Thoracic Surgery, 1995
- Self-expandable prostheses in the tracheobronchial tree.Radiology, 1993