Toward FBG-Sensorized Needle Shape Detection in Real Tissue Insertions

The determination of flexible needle shape during insertion is critical for planning and validation in minimally invasive surgical percutaneous procedures. In this paper, we validate a needle shape-sensing method using fiber Bragg grating (FBG) sensors over sequential needle insertion lengths in gel...

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Bibliographic Details
Main Authors: Kim, Min Jung, Lezcano, Dimitri A., Kim, Jin Seob, Iordachita, Iulian I.
Format: Conference Proceeding
Language:English
Subjects:
Animals
Computed tomography
Fiber gratings
Needles
Phantoms
Shape
Three-dimensional displays
Online Access:Request full text
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Summary:The determination of flexible needle shape during insertion is critical for planning and validation in minimally invasive surgical percutaneous procedures. In this paper, we validate a needle shape-sensing method using fiber Bragg grating (FBG) sensors over sequential needle insertion lengths in gel phantom and real tissue. Experiments on a four-active area, FBG-sensorized needle were performed in both isotropic simulated tissue and inhomogeneous animal tissue with computed tomography (CT) as the ground truth of the needle shape. The results show that the needle shape obtained from the FBG sensors has an overall consistent accuracy in real tissue in comparison to the phantom gel. The results validate a viable 3D needle shape-sensing model and reconstruction method over various insertion depths in comparison to the needle shapes determined from CT in both gel phantom and real tissue.
ISSN:2375-7477
2694-0604
DOI:10.1109/EMBC48229.2022.9871525