Radiation-Free Thoracic Endovascular Aneurysm Repair with Fiberoptic and Electromagnetic Guidance: A Phantom Study

Sieren, M; Jäckle, Sonja; Eixmann, Tim; Schulz‐Hildebrandt, Hinnerk; Matysiak, Florian; Preuss, Mark; García-Vázquez, Verónica; Stahlberg, Erik; Kleemann, Markus; Barkhausen, Jörg; Goltz, Jan Peter; Horn, Marco

doi:10.1016/j.jvir.2021.12.025

Cited by 9 publications

(2 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To reduce radiation and contrast dose, electromagnetic (EM) tracking of instruments with registration to preoperative computed tomography angiography (CTA) can be an appealing supplement. EM tracking has been demonstrated in feasibility studies, including in-situ fenestration of stent graft and cannulation of branch vessels (1)(2)(3)(4)(5)(6)(7). Most reported results are from in vitro phantom experiments, some from in-vivo animal studies, but very limited from patients.…”

Section: Introductionmentioning

confidence: 99%

Endovascular navigation in patients: vessel-based registration of electromagnetic tracking to preoperative images

Nypan,

Tangen,

Brekken

et al. 2024

Front. Radiol.

View full text Add to dashboard Cite

Electromagnetic tracking of instruments combined with preoperative images can supplement fluoroscopy for guiding endovascular aortic repair (EVAR). The aim of this study was to evaluate the in-vivo accuracy of a vessel-based registration algorithm for matching electromagnetically tracked positions of an endovascular instrument to preoperative computed tomography angiography. Five patients undergoing elective EVAR were included, and a clinically available semi-automatic 3D–3D registration algorithm, based on similarity measures computed over the entire image, was used for reference. Accuracy was reported as target registration error (TRE) evaluated in manually selected anatomic landmarks on bony structures, placed close to the volume-of-interest. The median TRE was 8.2 mm (range: 7.1 mm to 16.1 mm) for the vessel-based registration algorithm, compared to 2.2 mm (range: 1.8 mm to 3.7 mm) for the reference algorithm. This illustrates that registration based on intraoperative electromagnetic tracking is feasible, but the accuracy must be improved before clinical use.

show abstract

Section: Introductionmentioning

confidence: 99%

Endovascular navigation in patients: vessel-based registration of electromagnetic tracking to preoperative images

Nypan,

Tangen,

Brekken

et al. 2024

Front. Radiol.

View full text Add to dashboard Cite

show abstract

“…While the electromagnetic navigation can track the tip of the instrument, the surgeons cannot see the entire profile of the surgical tool inside the human body during procedures [ 11 , 12 ]. They can only rely on the tool tip position, with inherent errors due to the image registration process, differences between pre- and live-procedure anatomy, and clinical and electromagnetic interferences.…”

Section: Introductionmentioning

confidence: 99%

Feasibility of a lung airway navigation system using fiber-Bragg shape sensing and artificial intelligence for early diagnosis of lung cancer

et al. 2022

View full text Add to dashboard Cite

Currently early diagnosis of malignant lesions at the periphery of lung parenchyma requires guidance of the biopsy needle catheter from the bronchoscope into the smaller peripheral airways via harmful X-ray radiation. Previously, we developed an image-guided system, iMTECH which uses electromagnetic tracking and although it increases the precision of biopsy collection and minimizes the use of harmful X-ray radiation during the interventional procedures, it only traces the tip of the biopsy catheter leaving the remaining catheter untraceable in real time and therefore increasing image registration error. To address this issue, we developed a shape sensing guidance system containing a fiber-Bragg grating (FBG) catheter and an artificial intelligence (AI) software, AIrShape to track and guide the entire biopsy instrument inside the lung airways, without radiation or electromagnetic navigation. We used a FBG fiber with one central and three peripheral cores positioned at 120° from each other, an array of 25 draw tower gratings with 1cm/3nm spacing, 2 mm grating length, Ormocer-T coating, and a total outer diameter of 0.2 mm. The FBG fiber was placed in the working channel of a custom made three-lumen catheter with a tip bending mechanism (FBG catheter). The AIrShape software determines the position of the FBG catheter by superimposing its position to the lung airway center lines using an AI algorithm. The feasibility of the FBG system was tested in an anatomically accurate lung airway model and validated visually and with the iMTECH platform. The results prove a viable shape-sensing hardware and software navigation solution for flexible medical instruments to reach the peripheral airways. During future studies, the feasibility of FBG catheter will be tested in pre-clinical animal models.

show abstract

Innovation, disruptive Technologien und Transformation in der Gefäßchirurgie

Dorweiler

Wegner²,

Salem³

et al. 2022

Gefässchirurgie

View full text Add to dashboard Cite

Radiation-Free Thoracic Endovascular Aneurysm Repair with Fiberoptic and Electromagnetic Guidance: A Phantom Study

Cited by 9 publications

References 20 publications

Endovascular navigation in patients: vessel-based registration of electromagnetic tracking to preoperative images

Endovascular navigation in patients: vessel-based registration of electromagnetic tracking to preoperative images

Feasibility of a lung airway navigation system using fiber-Bragg shape sensing and artificial intelligence for early diagnosis of lung cancer

Innovation, disruptive Technologien und Transformation in der Gefäßchirurgie

Contact Info

Product

Resources

About