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Three-dimensional catheter navigation of airways using continuous-sweep limited angle fluoroscopy on a C-arm

Three-dimensional catheter navigation of airways using continuous-sweep limited angle fluoroscopy... Abstract.Purpose: To develop an imaging-based 3D catheter navigation system for transbronchial procedures including biopsy and tumor ablation using a single-plane C-arm x-ray system. The proposed system provides time-resolved catheter shape and position as well as motion compensated 3D airway roadmaps.Approach: A continuous-sweep limited angle (CLA) imaging mode where the C-arm continuously rotates back and forth within a limited angular range while acquiring x-ray images was used for device tracking. The catheter reconstruction was performed using a sliding window of the most recent x-ray images, which captures information on device shape and position versus time. The catheter was reconstructed using a model-based approach and was displayed together with the 3D airway roadmap extracted from a pre-navigational cone-beam CT (CBCT). The roadmap was updated in regular intervals using deformable registration to tomosynthesis reconstructions based on the CLA images. The approach was evaluated in a porcine study (three animals) and compared to a gold standard CBCT reconstruction of the device.Results: The average 3D root mean squared distance between CLA and CBCT reconstruction of the catheter centerline was 1  ±  0.5  mm for a stationary catheter and 2.9  ±  1.1  mm for a catheter moving at ∼1  cm  /  s. The average tip localization error was 1.3  ±  0.7  mm and 2.7  ±  1.8  mm, respectively.Conclusions: The results indicate catheter navigation based on the proposed single plane C-arm imaging technique is feasible with reconstruction errors similar to the diameter of a typical ablation catheter. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Medical Imaging SPIE

Three-dimensional catheter navigation of airways using continuous-sweep limited angle fluoroscopy on a C-arm

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References (51)

Publisher
SPIE
Copyright
© 2021 Society of Photo-Optical Instrumentation Engineers (SPIE)
ISSN
2329-4302
eISSN
2329-4310
DOI
10.1117/1.jmi.8.5.055001
Publisher site
See Article on Publisher Site

Abstract

Abstract.Purpose: To develop an imaging-based 3D catheter navigation system for transbronchial procedures including biopsy and tumor ablation using a single-plane C-arm x-ray system. The proposed system provides time-resolved catheter shape and position as well as motion compensated 3D airway roadmaps.Approach: A continuous-sweep limited angle (CLA) imaging mode where the C-arm continuously rotates back and forth within a limited angular range while acquiring x-ray images was used for device tracking. The catheter reconstruction was performed using a sliding window of the most recent x-ray images, which captures information on device shape and position versus time. The catheter was reconstructed using a model-based approach and was displayed together with the 3D airway roadmap extracted from a pre-navigational cone-beam CT (CBCT). The roadmap was updated in regular intervals using deformable registration to tomosynthesis reconstructions based on the CLA images. The approach was evaluated in a porcine study (three animals) and compared to a gold standard CBCT reconstruction of the device.Results: The average 3D root mean squared distance between CLA and CBCT reconstruction of the catheter centerline was 1  ±  0.5  mm for a stationary catheter and 2.9  ±  1.1  mm for a catheter moving at ∼1  cm  /  s. The average tip localization error was 1.3  ±  0.7  mm and 2.7  ±  1.8  mm, respectively.Conclusions: The results indicate catheter navigation based on the proposed single plane C-arm imaging technique is feasible with reconstruction errors similar to the diameter of a typical ablation catheter.

Journal

Journal of Medical ImagingSPIE

Published: Sep 1, 2021

Keywords: pulmonary interventions; 4D reconstruction; fluoroscopy; catheter tracking; C-arm

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