Usefulness of Endobronchial Ultrasonography With a Guide Sheath and Virtual Bronchoscopic Navigation for Ground-Glass Opacity Lesions

Ikezawa, Yasuyuki; Shinagawa, Naofumi; Sukoh, Noriaki; Morimoto, Megumi; Kikuchi, Hajime; Watanabe, Masahiro; Nakano, Kosuke; Oizumi, Satoshi; Nishimura, Masaharu

doi:10.1016/j.athoracsur.2016.09.001

Cited by 53 publications

(42 citation statements)

References 28 publications

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“…VF was useful in such situations as a reference for the lesion location and for forceps guidance during real-time fluoroscopic imaging after removal of the EBUS probe. The overall diagnostic yield (47/74, 63.5%) for EBUS-GS with VB was lower than previously reported (29), but the yield in the VF group (27/35, 77.1%) was comparable to that achieved in previous reports using bronchoscopy for GGNs that were visible on X-ray fluoroscopy images (12)(13)(14). It is important to construct VF and VB easily and quickly from volume data obtained from multi-slice CT and a workstation, with no additional cost.…”

Section: Malignant Lymphomasupporting

confidence: 56%

“…Therefore, it is important to visualize the target lesions using EBUS. Although GGNs often exhibit delicate changes on EBUS images (12)(13)(14)20,21), EBUS images could be obtained in 60 cases (81.1%) in the present study. This result suggests that confirming the location of GGNs using EBUS is a feasible method.…”

Section: Discussionmentioning

confidence: 54%

“…The frequency of GGN detection has been increasing, and selecting a diagnostic modality can become a clinical problem for physicians (27,28). Several publications have evaluated the diagnostic utility of EBUS-GS for GGNs (12)(13)(14) that were or were not visible on X-ray fluoroscopy images. Previous studies have reported that the visibility of target lesions on X-ray fluoroscopy affects the diagnostic yield achieved by bronchoscopy (13,15).…”

Section: Discussionmentioning

confidence: 99%

“…Previous studies have reported that the visibility of target lesions on X-ray fluoroscopy affects the diagnostic yield achieved by bronchoscopy (13,15). The yield of GGNs detection on fluoroscopy has been reported to be 42.6-45.0% (12)(13)(14). Most physicians recognize the clinical difficulties of diagnostic bronchoscopy for GGNs that cannot be visualized on X-ray fluoroscopy.…”

Section: Discussionmentioning

confidence: 99%

“…Recent reports of bronchoscopy using endobronchial ultrasound with a guide sheath (EBUS-GS) and virtual bronchoscopy (VB) for the diagnosis of GGNs were based on data involving GGNs that were visible on X-ray fluoroscopy (12)(13)(14). However, GGNs are often not visible on X-ray fluoroscopy even if the C-arm gantry angle is adjusted, potentially influencing the clinical diagnostic yield of bronchoscopy (13,15).…”

Section: Original Article Of Interventional Pulmonology Cornermentioning

confidence: 99%

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Virtual fluoroscopy during transbronchial biopsy for locating ground-glass nodules not visible on X-ray fluoroscopy

Nakai¹,

Izumo²,

Tsuchida³

2017

J. Thorac. Dis.

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Background: Virtual fluoroscopy (VF) is a novel guided technique that provides ray summation images of target lesions similar to X-ray fluoroscopy. Endobronchial ultrasound with a guide sheath (EBUS-GS) is a useful modality for imaging ground-glass nodules (GGNs) but is not ideal for GGNs that cannot be detected on X-ray fluoroscopy. We evaluated whether the addition of VF to EBUS-GS improved the diagnostic yield.Methods: Consecutive patients who had undergone diagnostic bronchoscopy for GGNs that were not detected on X-ray fluoroscopy between September 2012 and January 2016 were retrospectively enrolled.The patients were divided into two groups: a non-VF group [performed using conventional thin-section computed tomography (CT), X-ray fluoroscopy, EBUS-GS, and virtual bronchoscopy for reference], and a VF group (performed using additional VF to non-VF group). We then compared the diagnostic yields between the two groups and performed a multivariate analysis to identify factors associated with an increased diagnostic yield.Results: A total of 74 patients (VF, 35 patients; non-VF, 39 patients) were enrolled and were included in the analysis. The diagnostic yield was significantly higher in the VF group (77.1%) than in the non-VF group (51.2%, P=0.030). There were no clinically significant complications in either group. In the multivariate analysis, a positive bronchus sign [odds ratio (ORs), 5.41; 95% confidence interval (CI), 1.36-21.40] and the use of VF (odds ratio, 3.68; 95% confidence interval, 1.16-11.60) were significantly associated with successful bronchoscopic diagnosis.Conclusions: The addition of VF to EBUS-GS helped to identify GGNs that were not visible on X-ray fluoroscopy.Keywords: Lung cancer; ground-glass nodule (GGN); bronchoscopy; virtual fluoroscopy (VF); virtual bronchoscopy (VB); radial endobronchial ultrasound with a guide sheath (EBUS-GS)

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Section: Malignant Lymphomasupporting

confidence: 56%

Section: Discussionmentioning

confidence: 54%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Original Article Of Interventional Pulmonology Cornermentioning

confidence: 99%

See 3 more Smart Citations

Virtual fluoroscopy during transbronchial biopsy for locating ground-glass nodules not visible on X-ray fluoroscopy

Nakai¹,

Izumo²,

Tsuchida³

2017

J. Thorac. Dis.

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Radial‐Probe Ultrasonography in Flexible Bronchoscopy

Kurimoto

Isobe

Inoue

et al. 2020

Flexible Bronchoscopy

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Image-Based Bronchial Anatomy Codification for Biopsy Guiding in Video Bronchoscopy

Ramírez

Sanchez

Borràs

et al. 2018

Lecture Notes in Computer Science

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Bronchoscopy examinations allow biopsy of pulmonary nodules with minimum risk for the patient. Even for experienced bronchoscopists, it is difficult to guide the bronchoscope to most distal lesions and obtain an accurate diagnosis. This paper presents an image-based codification of the bronchial anatomy for bronchoscopy biopsy guiding. The 3D anatomy of each patient is codified as a binary tree with nodes representing bronchial levels and edges labeled using their position on images projecting the 3D anatomy from a set of branching points. The paths from the root to leaves provide a codification of navigation routes with spatially consistent labels according to the anatomy observes in video bronchoscopy explorations. We evaluate our labeling approach as a guiding system in terms of the number of bronchial levels correctly codified, also in the number of labels-based instructions correctly supplied, using generalized mixed models and computer-generated data. Results obtained for three independent observers prove the consistency and reproducibility of our guiding system. We trust that our codification based on viewer's projection might be used as a foundation for the navigation guidance in bronchoscopy-based systems.

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Usefulness of Endobronchial Ultrasonography With a Guide Sheath and Virtual Bronchoscopic Navigation for Ground-Glass Opacity Lesions

Abstract: Background: Endobronchial ultrasonography with a guide sheath (EBUS-GS) could be

Cited by 53 publications

References 28 publications

Virtual fluoroscopy during transbronchial biopsy for locating ground-glass nodules not visible on X-ray fluoroscopy

Virtual fluoroscopy during transbronchial biopsy for locating ground-glass nodules not visible on X-ray fluoroscopy

Radial‐Probe Ultrasonography in Flexible Bronchoscopy

Image-Based Bronchial Anatomy Codification for Biopsy Guiding in Video Bronchoscopy

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