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Reproducibility of peripheral branches in virtual bronchoscopic navigation using VINCENT and LungPoint software for
Atsushi Kitamura1, Kohei Okafuji1, Ryosuke Imai1
1Department of Respiratory Medicine, Thoracic Center, St. Luke's International Hospital, Tokyo, Japan.
Background:
Recently, virtual bronchoscopic navigation (VBN) has become frequently used for the pathological specimen collection of peripheral lung lesions using various VBN software packages. Herein, we examined the reproducibility of peripheral branches in VBN software using LungPoint and VINCENT versions 4.0 and 5.5.
Methods:
This study included patients suspected of malignant peripheral lung lesions who underwent bronchoscopy at our hospital from February 2016 to April 2017. Computed tomography was taken at a thickness of 1.25 mm in all cases, and VB images were created based on the computed tomography data using LungPoint, or VINCENT version 4.0 or 5.5. One observer read the program-generated VB images and compared how many branches could be visualized with the lobe bronchus as the primary branch.
Results:
A total of 129 patients (n = 131 lesions) underwent bronchoscopy, with 82 cases of primary lung cancer. Pathological bronchoscopic diagnosis was done in 63 cases, resulting to a diagnostic rate of 76.8%. VB images generated by LungPoint, and VINCENT versions 4.0 and 5.5 reproduced an average of 4.3, 3.47, and 5.12 branches, respectively, with significant differences (p < 0.05) between them.
Conclusions:
VINCENT version 5.5 exhibits better reproducibility of peripheral branches than LungPoint for VBN.
