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Virtual bronchoscopic navigation system shortens the examination time—Feasibility study of virtual bronchoscopic navigation system

Authors :
Takashi Ishida
Naofumi Shinagawa
Koichi Yamazaki
Yuya Onodera
Masaharu Nishimura
Fumihiro Asano
Hiroshi Moriya
Source :
Lung Cancer. 56:201-206
Publication Year :
2007
Publisher :
Elsevier BV, 2007.

Abstract

Computed tomography (CT)-guided transbronchial biopsy (TBB) using an ultrathin bronchoscope with simulation by virtual bronchoscopy (VB) is effective for diagnosing small peripheral pulmonary lesions. However, we occasionally lose the proper bronchi to the lesion when a bronchoscope is inserted into peripheral bronchi with severe rotation. To overcome this problem, the virtual bronchoscopic navigation system that can display real-time VB images during TBB procedures in comparison with actual bronchi has been developed. We evaluated the usefulness of the virtual bronchoscopic navigation system for CT-guided TBB using an ultrathin bronchoscope (navigation method) to diagnose small peripheral pulmonary lesions, and compared the results to those with previous method that uses VB images in a simulation (simulation method). We performed CT-guided TBB using an ultrathin bronchoscope for 69 patients with 71 small peripheral pulmonary lesions (mean diameter, 13.7 mm) between November 2002 and November 2005 with the navigation method. CT-guided TBB with the navigation method was performed safely without any serious complications for all patients. Mean time to the initial scan, time to the first biopsy and total examination time were 5.3, 8.5 and 24.5 min, respectively. Fifty lesions (70%) were diagnosed by this procedure. Compared to simulation method, diagnostic sensitivity was higher in the navigation method, but the difference was not significant. However, the time to the first biopsy and total examination time were significantly shorter in the navigation method than in the simulation method (p

Details

ISSN :
01695002
Volume :
56
Database :
OpenAIRE
Journal :
Lung Cancer
Accession number :
edsair.doi.dedup.....8a934cf457a5fdf30a7b0a0656ac0c1e
Full Text :
https://doi.org/10.1016/j.lungcan.2006.12.005