Paper Info
Title
Evaluation Of Real-Time Guidewire Navigation Using Virtual Endoscopic 4d Fluoroscopy
Abstract
4D fluoroscopy is a method for real-time 3D visualization of endovascular devices using biplane fluoroscopy. Frame-by frame (15 fps) 4D reconstructions of the device are overlayed on 3D vascular anatomy derived from 3D-DSA. We describe a 4D-assisted guidance platform that provides virtual endoscopic renderings of blood vessels and report on its use for navigating guidewires in a patient-specific vascular phantom. The 4D-assisted platform provides two 4D display modes plus conventional 2D fluoroscopy. Virtual endoscopic 4D mode shows a real-time view of the guidewire tip and the downstream vessel with a viewpoint inside the vessel. Path-planning highlights the target vessel branches. External 4D display mode provides an external rotatable viewpoint of the device and vasculature. In a phantom study, operators navigated a guidewire through branches of a 3D-printed phantom. Performance was compared to navigation with 2D fluoroscopy alone. Operators rated the degree to which they used the 2D and 4D display modes on a Likert scale (1-never, 5-almost always). Quantitative imaging metrics were obtained from processed video recordings. Three users completed 15 of 15 challenges with 4D-assisted display, whereas the 2D-only guidance completion rate was 13/15. With both 2D and 4D displays available, users reported using the 2D display never-to-sometimes (median score = 2) and 4D display often or almost always (median = 5). The virtual endoscopic viewpoint was utilized more frequently than the external viewpoint. 4D fluoroscopy with virtual endoscopic display provides a new and potentially useful mode for visualization of guidewire and catheter manipulations in complex vascular anatomy.
Year
DOI
Venue
2020
10.1117/12.2549683
MEDICAL IMAGING 2020: IMAGE-GUIDED PROCEDURES, ROBOTIC INTERVENTIONS, AND MODELING
Keywords
DocType
Volume
fluoroscopy, endoscopy, 4D, interventional, procedure, catheter, visualization, navigation
Conference
11315
ISSN
Citations 
PageRank 
0277-786X
0
0.34
References 
Authors
0
7
Name
Order
Citations
PageRank
Brian Davis16612.87
Martin G. Wagner221.73
Sarvesh Periyasamy300.34
Charles A. Mistretta432.90
charles m strother522.41
Paul F Laeseke652.14
Michael A. Speidel7113.99