Comparing position and orientation accuracy of different electromagnetic sensors for tracking during interventions

International Journal of Computer Assisted Radiology and Surgery
Jasper NijkampTheo Ruers

Abstract

To compare the position and orientation accuracy between using one 6-degree of freedom (DOF) electromagnetic (EM) sensor, or the position information of three 5DOF sensors within the scope of tumor tracking. The position accuracy of Northern Digital Inc Aurora 5DOF and 6DOF sensors was determined for a table-top field generator (TTFG) up to a distance of 52 cm. For each sensor 716 positions were measured for 10 s at 15 Hz. Orientation accuracy was determined for each of the orthogonal axis at the TTFG distances of 17, 27, 37 and 47 cm. For the 6DOF sensors, orientation was determined for sensors in-line with the orientation axis, and perpendicular. 5DOF orientation accuracy was determined for a theoretical 4 cm tumor. An optical tracking system was used as reference. Position RMSE and jitter were comparable between the sensors and increasing with distance. Jitter was within 0.1 cm SD within 45 cm distance to the TTFG. Position RMSE was approximately 0.1 cm up to 32 cm distance, increasing to 0.4 cm at 52 cm distance. Orientation accuracy of the 6DOF sensor was within 1[Formula: see text], except when the sensor was in-line with the rotation axis perpendicular to the TTFG plane (4[Formula: see text] errors at 47 cm). Orientation...Continue Reading

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Citations

Mar 24, 2017·International Journal of Computer Assisted Radiology and Surgery·Andrew W L DickinsonRandy E Ellis
Nov 15, 2017·International Journal of Computer Assisted Radiology and Surgery·Natasja JanssenJasper Nijkamp
Nov 29, 2017·Minimally Invasive Therapy & Allied Technologies : MITAT : Official Journal of the Society for Minimally Invasive Therapy·Marius SchwalbePascale Tinguely
Jun 18, 2017·International Journal of Computer Assisted Radiology and Surgery·Xinyang LiuRaj Shekhar
Aug 14, 2018·International Journal of Computer Assisted Radiology and Surgery·Roeland EppengaJasper Nijkamp
Dec 26, 2018·Journal of Surgical Oncology·Jasper NijkampTheo J M Ruers
Nov 15, 2019·International Journal of Computer Assisted Radiology and Surgery·Roeland EppengaJasper Nijkamp
Apr 15, 2020·NPJ Precision Oncology·Esther N D KokTheo J M Ruers
Feb 18, 2021·NPJ Precision Oncology·Esther N D KokTheo J M Ruers

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