Towards electromagnetic tracking of J-tip guidewire: precision assessment of sensors during bending tests
Published in SPIE Medical Imaging, 2020
Recommended citation: Piazza R, Nisar H, Moore J, Condino S, Ferrari M, Ferrari V, Peters TM, Chen ECS, (2020). "Towards electromagnetic tracking of J-tip guidewire: precision assessment of sensors during bending tests"; in SPIE Medical Imaging: Image-Guided Procedures, Robotic Interventions, and Modeling, 1131506, pp. 37-46. https://doi.org/10.1117/12.2549764
Electromagnetic image guidance systems have emerged as more secure methods to improve the performance of several catheter-based minimally invasive surgical procedures. Small sensors are incorporated within catheters and guidewires in order to track and guide in real-time their position and orientation with a reduced intra- procedural radiation exposure and contrast agent injections. One of the major limits of these systems is related to the unsuitable sensorization strategy for the J-tip guidewires, due to the structural constraints of the sensor coils available on the market. In this work we present preliminary results on a sensors bending test in static conditions to assess whether and when the precision of the sensor remains unchanged and/or deteriorates. In the worst case, the highest standard deviation is less than 0:10 mm.