Fiber optical shape sensing of flexible instruments for endovascular navigation.

ABSTRACT: PURPOSE:Endovascular aortic repair procedures are currently conducted with 2D fluoroscopy imaging. Tracking systems based on fiber Bragg gratings are an emerging technology for the navigation of minimally invasive instruments which can reduce the X-ray exposure and the used contrast agent. Shape sensing of flexible structures is challenging and includes many calculations steps which are prone to different errors. To reduce this errors, we present an optimized shape sensing model. METHODS:We analyzed for every step of the shape sensing process, which errors can occur, how the error affects the shape and how it can be compensated or minimized. Experiments were done with one multicore fiber system with 38 cm sensing length, and the effects of different methods and parameters were analyzed. Fu

SUBMITTER: Jackle S 

PROVIDER: S-EPMC6858473 | biostudies-literature | 2019 Dec

REPOSITORIES: biostudies-literature