Quirin, ThomasFéry, CorentinVogel, DorianVergne, CélineSarracanie, MathieuSalameh, NajatMadec, MorganHemm-Ode, SimoneHebrard, LucPascal, Joris2022-03-142022-03-142021-04-101424-822010.3390/s21082670https://irf.fhnw.ch/handle/11654/33359https://doi.org/10.26041/fhnw-4134This paper presents a tracking system using magnetometers, possibly integrable in a deep brain stimulation (DBS) electrode. DBS is a treatment for movement disorders where the position of the implant is of prime importance. Positioning challenges during the surgery could be addressed thanks to a magnetic tracking. The system proposed in this paper, complementary to existing procedures, has been designed to bridge preoperative clinical imaging with DBS surgery, allowing the surgeon to increase his/her control on the implantation trajectory. Here the magnetic source required for tracking consists of three coils, and is experimentally mapped. This mapping has been performed with an in-house three-dimensional magnetic camera. The system demonstrates how magnetometers integrated directly at the tip of a DBS electrode, might improve treatment by monitoring the position during and after the surgery. The three-dimensional operation without line of sight has been demonstrated using a reference obtained with magnetic resonance imaging (MRI) of a simplified brain model. We observed experimentally a mean absolute error of 1.35 mm and an Euclidean error of 3.07 mm. Several areas of improvement to target errors below 1 mm are also discussed.en-USAttribution 3.0 United StatesDeep brain stimulationMagnetic field mappingMagnetic tracking systemThree-dimensional magnetometerImage guided intervention01A - Beitrag in wissenschaftlicher Zeitschrift