Piloting a Virtual Navigation (VN) System for Bronchoscopic Lung Nodule Sampling

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Total Enrollment

166 participants

Study Classification

OBSERVATIONAL

Study Start Date

2023-06-16

Study Completion Date

2025-10-31

Brief Summary

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The overall goal is to evaluate the role of a Virtual Navigation (VN) system (the Virtual Navigator) in the bronchoscopic evaluation and tissue sampling of lung cancer and other chest lesions at the Penn State Hershey Medical Center (HMC). The Virtual Navigator is a software package that runs on a mobile Windows-based computer. The computer takes in up to four clinical image/video sources, ordered by the clinician for clinical purposes: 1) 3D CT (computed tomography) imaging scan; 2) 3D PET (positron emission tomography) imaging scan (optional); 3) Bronchoscopic video of the airway tree interior; 4) Ultrasound video of scanned anatomy outside the airways, as provided by an endobronchial ultrasound (EBUS) probe (optional). During a live guided procedure, the Virtual Navigator presents images that assist with navigating the bronchoscope to predesignated chest lesions.

Lung cancer patients that present a suspicious peripheral tumor on their chest CT scan are often prescribed to undergo a diagnosis-and-staging bronchoscopy, whereby the bronchoscopist examines both the suspect tumor and any identified central-chest lymph nodes. For the clinical study, we consider bronchoscopy performance for two cohorts: 1) a cohort of consented patients who undergo image-guided bronchoscopy via the Virtual Navigator; and 2) a historical controls cohort consisting of patients who underwent bronchoscopy recently at our medical center (state-of-the-art bronchoscopy practice). The study's general hypothesis is that an image-guided bronchoscopy system (the Virtual Navigator) that integrates 3D imaging, bronchoscopy, and EBUS images enables more complete evaluation and sampling of chest lesions than current state-of-the-art clinical techniques. More specifically, for peripheral-tumor diagnosis, the sub-hypothesis is that the VN system increases diagnostic biopsy yield as compared to state-of-the-art bronchoscopy practice; for central-chest nodal staging, the sub-hypothesis is that the VN system enables the sampling of more lymph nodes than state-of-the-art bronchoscopy practice.

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Detailed Description

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Conditions

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Lung Cancer

Study Design

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Observational Model Type

CASE_CONTROL

Study Time Perspective

PROSPECTIVE

Study Groups

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Historical Controls Cohort

Lung cancer patients who have previously undergone a clinical bronchoscopy. This group represents the current state-of-the-art bronchoscopy practice.

No interventions assigned to this group

Consented Clinical Bronchoscopy Cohort

Lung cancer patients, scheduled for bronchoscopy, who are consented for bronchoscopy assisted by the Virtual Navigator.

Virtual Navigation System

Intervention Type DIAGNOSTIC_TEST

The Virtual Navigator guidance computer is interfaced to the bronchoscopy hardware to tap off the live bronchoscopy and EBUS video feeds. The standard OR medical team (technicians, clinical fellows, et al.) is on hand, and standard clinical facilities (e.g., fluoroscopy, CT/PET image viewer) are available. Our technical team is also present to record all procedural video and computer display information. It also operates the guidance computer during the guided procedure and offers any assistance in case of unanticipated issues. The participant's clinical bronchoscopy will be recorded by the radiology imaging management system.

Interventions

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Virtual Navigation System

The Virtual Navigator guidance computer is interfaced to the bronchoscopy hardware to tap off the live bronchoscopy and EBUS video feeds. The standard OR medical team (technicians, clinical fellows, et al.) is on hand, and standard clinical facilities (e.g., fluoroscopy, CT/PET image viewer) are available. Our technical team is also present to record all procedural video and computer display information. It also operates the guidance computer during the guided procedure and offers any assistance in case of unanticipated issues. The participant's clinical bronchoscopy will be recorded by the radiology imaging management system.

Intervention Type DIAGNOSTIC_TEST

Eligibility Criteria

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Inclusion Criteria

* patients from age 18 and over
* a planned clinical bronchoscopy to evaluate abnormal lung parenchyma and/or central chest lymph nodes
* a clinical CT scan performed at Hershey Medical Center that meets technical specifications and is available on the Radiology research server
* (Optional, use if available) CT/PET images that meet technical specifications and are available on the Hershey Medical Center clinical image storage system